Power MOSFET Drivers
Products (63)
L9957-TR - High Voltage High-Side Driver | STMicroelectronics | SO-8
The STMicroelectronics L9957-TR is a high-voltage high-side driver IC manufactured using the BCD "OFF-LINE" technology. It is designed to drive high-side loads in automotive and industrial applications, providing a robust interface between low-voltage control logic and high-voltage power rails. The device is available in an 8-pin SO-8 (SOIC-8) package and is supplied in tape and reel packaging, making it suitable for high-volume surface-mount assembly. A high-side driver is a type of power switch that connects a load to the positive supply rail. It is a critical component in automotive electronics, industrial control systems, and power management circuits, where it provides a safe and efficient way to switch loads such as relays, solenoids, lamps, and motors. High-side drivers are preferred over low-side drivers in many applications because they simplify load fault detection and protect against short circuits to ground. The L9957-TR is a key building block in the power management hierarchy, sitting between the microcontroller and the high-voltage load. Key features of the L9957-TR include a high voltage rail capability of up to 450V, which allows it to operate directly from high-voltage buses. It offers a driver current capability of 500mA source and 500mA sink, enabling it to drive moderate-power loads. The device also provides fast switching times of 100ns rise/fall with a 2nF load, which is essential for high-frequency PWM applications. Additionally, it has a dV/dt immunity of ±50V/nsec across the full temperature range, ensuring reliable operation in noisy environments. The L9957-TR is built using STMicroelectronics' BCD (Bipolar-CMOS-DMOS) "OFF-LINE" technology, which combines the advantages of bipolar, CMOS, and DMOS transistors on a single chip. This technology enables the integration of high-voltage DMOS power transistors with low-voltage CMOS control logic, resulting in a compact and efficient solution. The device operates over a supply voltage range of 10V to 18V and is specified for a temperature range of -40°C to +125°C, making it suitable for harsh automotive environments. Typical applications for the L9957-TR include automotive body control modules, industrial motor control, and power distribution systems. In automotive applications, it can be used to drive exterior lighting, fuel pumps, and other high-side loads. In industrial settings, it is ideal for driving solenoids, valves, and relays in programmable logic controllers (PLCs) and factory automation equipment. The device's high voltage capability and fast switching make it a versatile choice for a wide range of high-side switching applications. When designing with the L9957-TR, it is important to consider the thermal performance of the SO-8 package. The device's power dissipation is limited by the package's thermal resistance, so adequate PCB copper area and thermal vias are recommended for high-current or high-temperature applications. Additionally, proper decoupling capacitors should be placed close to the supply pins to ensure stable operation and minimize switching noise.
L9959 - SPI Controlled 8-Channel Low-Side Driver | STMicroelectronics
The L9959 is a versatile 8-channel low-side driver from STMicroelectronics, designed for automotive and industrial applications requiring multiple grounded loads. It integrates an SPI interface for control and diagnostics, making it ideal for driving relays, LEDs, and small solenoids. The device operates from a 4.5V to 5.5V supply and features a 40V load voltage capability, with each channel capable of sinking up to 1.2A continuous current. The L9959 is available in a PowerSO-20 package, providing a compact solution for space-constrained designs. A low-side driver is a type of power switch that connects the load to ground when activated, allowing the load to be powered from a positive supply. In automotive systems, low-side drivers are commonly used to control lamps, relays, and actuators, where the load is connected between the battery positive and the driver output. The L9959 fits into the broader category of smart power switches, which integrate protection and diagnostic features to enhance system reliability. These devices are essential in modern vehicle body control modules, where multiple loads must be managed efficiently. Key features of the L9959 include an SPI interface for serial control and readback of diagnostic information, a 40V load voltage rating, and a low quiescent current of 10 µA in standby mode. Each output can sink up to 1.2A, and the device includes overcurrent, overtemperature, and open-load detection for robust protection. The SPI interface operates at up to 5 MHz, enabling fast communication with microcontrollers. The PowerSO-20 package offers excellent thermal performance, with a thermal resistance of 35 °C/W, allowing operation at high ambient temperatures. The L9959 is built using STMicroelectronics' BCD (Bipolar-CMOS-DMOS) technology, which combines low-power CMOS logic with high-voltage DMOS power stages. This architecture enables efficient switching and precise analog diagnostics. The device includes a 16-bit SPI register for configuration and status readback, allowing real-time monitoring of output states and fault conditions. The integrated protection features ensure safe operation under short-circuit and thermal stress, reducing the need for external components. Typical applications include automotive body control modules, where the L9959 drives exterior and interior lighting, relays, and small motors. It is also used in industrial PLCs for controlling solenoids and valves, and in building automation for lighting control. The SPI interface simplifies wiring and reduces the number of microcontroller I/O pins required, making it a cost-effective solution for multi-channel switching. When designing with the L9959, ensure proper decoupling of the VCC supply with a 100 nF ceramic capacitor placed close to the pin. The SPI lines should be kept short and shielded to minimize noise, and the ground plane should be solid to handle the return currents from multiple outputs. Thermal management is critical when driving high currents; use adequate copper area on the PCB to dissipate heat.
L9970 - Automotive High-Side Driver | STMicroelectronics
The L9970 is an automotive-grade high-side driver from STMicroelectronics, designed for driving resistive, inductive, and capacitive loads in 12V automotive systems. It integrates a power MOSFET with advanced protection features, making it suitable for controlling lamps, relays, solenoids, and small motors. The device operates from a supply voltage range of 5.5V to 36V, with a typical output current capability of 1A, and is available in a PowerSO-10 package. A high-side driver is a type of power switch that connects the load to the positive supply rail, providing a simple and safe way to control power to grounded loads. In automotive electronics, high-side drivers are essential for driving actuators, lights, and sensors while offering built-in protection against short circuits, overcurrent, and thermal overload. The L9970 belongs to the family of smart power switches, which integrate the power stage with control and diagnostic functions, reducing external component count and improving system reliability. Key features of the L9970 include a low quiescent current of 50 µA, making it suitable for always-on applications in battery-powered vehicles. It provides a logic-level input compatible with 3.3V and 5V microcontrollers, and includes an open-load detection feature that can be used for diagnostic purposes. The device also features a built-in clamp for inductive load demagnetization, protecting the output stage when switching off inductive loads. The L9970 is built using STMicroelectronics' VIPower M0 technology, which integrates a vertical P-channel power MOSFET with CMOS control logic on a single chip. This technology ensures low on-resistance (typically 0.5Ω) and fast switching, while the thermal shutdown and current limiting circuits protect the device under fault conditions. The PowerSO-10 package provides excellent thermal performance, with a junction-to-ambient thermal resistance of 40°C/W, allowing operation up to 150°C junction temperature. Typical applications include automotive body control modules, lighting control, relay drivers, and solenoid drivers. The device is also used in industrial automation for controlling DC loads. Its wide supply voltage range and robust protection make it a versatile choice for harsh environments. When designing with the L9970, ensure adequate PCB copper area for heat dissipation, especially when driving continuous currents near the maximum rating. The input pin should be protected with a series resistor if the microcontroller supply is noisy. Also, consider the inductive load demagnetization energy when switching off, as the internal clamp will dissipate the stored energy.
L9971-TR - Automotive Quad Low-Side Driver | STMicroelectronics
The L9971-TR is a quad low-side driver IC from STMicroelectronics, designed for automotive and industrial applications requiring robust, high-current switching. It integrates four independent low-side drivers with built-in protection features, making it suitable for driving resistive, inductive, and capacitive loads such as relays, solenoids, and LEDs. The device operates over a wide supply voltage range and is available in a compact surface-mount package, facilitating space-constrained PCB designs. A low-side driver is a type of power switch that connects the load to ground when activated, allowing the load to be powered from a positive supply rail. In automotive systems, low-side drivers are commonly used to control actuators, lamps, and motors, where the load is connected between the battery positive terminal and the driver output. The L9971-TR belongs to the family of smart power switches, which integrate protection and diagnostic features to enhance system reliability. Key features of the L9971-TR include four independent output channels, each capable of delivering continuous output current up to [DATA_NEEDED: output current per channel] A, with a maximum supply voltage of [DATA_NEEDED: maximum supply voltage] V. The device incorporates overcurrent protection, thermal shutdown, and undervoltage lockout to safeguard against fault conditions. Additionally, it features a serial peripheral interface (SPI) for advanced diagnostics and control, enabling real-time monitoring of output status and fault detection. The L9971-TR is built using STMicroelectronics' advanced BCD (Bipolar-CMOS-DMOS) technology, which combines high-voltage capability with low power consumption and fast switching performance. This technology ensures efficient operation and robust performance in harsh automotive environments, with an operating temperature range of -40°C to +150°C. The device is AEC-Q100 qualified, meeting the stringent quality and reliability standards required for automotive applications. Typical applications include automotive body control modules, lighting control, relay and solenoid drivers, and industrial automation systems. In automotive body control, the L9971-TR can drive exterior and interior lighting, power windows, and door locks, providing reliable switching with diagnostic feedback. In industrial settings, it can control valves, actuators, and small motors, offering protection and monitoring capabilities. When designing with the L9971-TR, it is essential to consider proper thermal management, as high output currents can generate significant heat. The exposed pad of the package should be soldered to a large copper area on the PCB to enhance heat dissipation. Additionally, appropriate decoupling capacitors should be placed near the supply pins to minimize voltage transients and ensure stable operation.
L9978-TR - Automotive Quad Low-Side Driver | STMicroelectronics
The STMicroelectronics L9978-TR is a quad low-side driver designed for automotive and industrial applications, featuring four independent open-drain outputs capable of driving resistive, inductive, or capacitive loads. It operates from a supply voltage range of 4.5V to 36V, with a maximum output current of 1.2A per channel, and is available in a PowerSO-20 package with exposed pad for enhanced thermal performance. A low-side driver is a type of power switch that connects the load to ground when activated, commonly used to control relays, solenoids, LEDs, and other actuators in automotive body control modules and industrial control systems. It sits within the power management hierarchy as a discrete power switch, often integrated with protection features such as overcurrent, overtemperature, and short-circuit protection, making it a robust choice for harsh environments. Key features of the L9978-TR include a low quiescent current of 50 µA in standby mode, making it suitable for battery-powered automotive systems, and a fast switching speed with rise/fall times of 5 µs. Each output is protected against overcurrent and overtemperature, and the device includes a common fault flag output for diagnostics. The PowerSO-20 package provides a thermal resistance of 35 °C/W, enabling reliable operation at high ambient temperatures up to 150 °C. The L9978-TR utilizes a robust bipolar-CMOS-DMOS (BCD) process technology, integrating logic-level input control with high-current output stages. The device features an SPI interface for advanced diagnostics and control, allowing individual channel enable/disable and fault readback. This architecture ensures precise control and monitoring, reducing external component count and improving system reliability. Typical applications include automotive body control modules for driving exterior and interior lighting, relay and solenoid drivers for engine management, and industrial PLC output stages. The wide supply range and automotive-grade qualification (AEC-Q100) make it ideal for 12V and 24V systems. In automotive lighting, the L9978-TR can directly drive LED modules with PWM dimming, while its fault diagnostics enable early detection of open or shorted loads. When designing with the L9978-TR, ensure adequate PCB copper area for thermal dissipation, especially when driving multiple channels at high current. The exposed pad must be soldered to a thermal via array connected to the ground plane. Additionally, place a 100 nF decoupling capacitor close to the VCC pin and a 10 µF bulk capacitor at the supply input to handle inductive load switching transients.
L9979 - Automotive Quad Low-Side Driver | STMicroelectronics
The STMicroelectronics L9979 is an automotive-grade quad low-side driver designed for driving resistive, inductive, and capacitive loads in 12V and 24V vehicle electrical systems. It integrates four independent low-side output stages with built-in protection features, making it suitable for relay, solenoid, and LED actuation in body control modules, transmission control units, and lighting systems. A low-side driver is a type of power switch that connects the load to ground when activated, with the load connected between the positive supply and the driver output. In automotive systems, low-side drivers are commonly used to control relays, solenoids, and lamps, where the load is referenced to the battery positive rail. The L9979 belongs to the family of smart power switches, which integrate protection and diagnostic functions to enhance system reliability. Key features of the L9979 include four low-side outputs with a maximum continuous current of [DATA_NEEDED: maximum continuous output current] per channel, an operating voltage range of [DATA_NEEDED: operating voltage range], and built-in overcurrent, overtemperature, and short-circuit protection. The device also provides a serial peripheral interface (SPI) for advanced diagnostics and control, enabling real-time monitoring of output states and fault conditions. The L9979 is available in a [DATA_NEEDED: package type] package, which is designed for automotive PCB assembly and thermal performance. The L9979 utilizes a robust power MOSFET technology with integrated protection circuitry, ensuring reliable operation in harsh automotive environments. The SPI interface allows a microcontroller to configure output parameters, read diagnostic information, and control each channel independently. The device is designed to meet AEC-Q100 automotive qualification standards, ensuring its suitability for mission-critical applications. Typical applications include automotive body control modules (BCMs) for controlling exterior and interior lighting, relay drivers for power distribution, solenoid drivers in transmission control units, and LED drivers for daytime running lights. The L9979's ability to handle inductive loads with built-in freewheeling protection makes it ideal for relay and solenoid actuation. When designing with the L9979, ensure proper PCB layout with adequate copper area for thermal dissipation, and place decoupling capacitors close to the power supply pins. The SPI interface should be isolated from high-current traces to minimize noise coupling. For inductive loads, verify that the freewheeling protection is sufficient for the load's energy rating.
L9980 - Automotive Quad Low-Side Driver | STMicroelectronics
The L9980 is a quad low-side driver IC from STMicroelectronics, designed for automotive and industrial applications requiring robust, high-current switching. It integrates four independent low-side drivers with built-in protection features, making it suitable for driving resistive, inductive, and capacitive loads such as relays, solenoids, and LEDs. The device operates over a wide supply voltage range and is available in a PowerSO-20 package, offering excellent thermal performance for high-current applications. A low-side driver is a type of power switch that connects the load to ground when activated, with the load connected between the positive supply and the driver output. In automotive systems, low-side drivers are commonly used to control actuators, lamps, and motors, where the load is referenced to the battery positive rail. The L9980 belongs to the family of smart power switches, which integrate protection and diagnostic features to enhance system reliability and reduce external component count. Key features of the L9980 include four independent output channels, each capable of delivering up to 1.5 A continuous current, with a maximum supply voltage of 40 V. The device features overcurrent protection, thermal shutdown, and undervoltage lockout, ensuring safe operation under fault conditions. Additionally, the L9980 provides a serial peripheral interface (SPI) for advanced diagnostics and control, allowing the microcontroller to monitor output status and detect faults in real time. From a technical perspective, the L9980 utilizes a smart power technology that integrates CMOS control logic with high-voltage power MOSFETs on a single die. This architecture enables efficient switching with low on-resistance, minimizing power dissipation and heat generation. The SPI interface supports daisy-chaining of multiple devices, simplifying PCB layout in multi-channel systems. The device also features a sleep mode with very low quiescent current, making it suitable for battery-powered applications where power consumption is critical. Typical applications for the L9980 include automotive body control modules, where it drives exterior and interior lighting, relays for power windows and door locks, and solenoid valves in transmission control units. It is also used in industrial automation for controlling actuators and valves, and in smart home systems for driving LED lighting and motorized blinds. The device's robust protection features and wide operating temperature range (-40°C to +150°C) make it ideal for harsh environments. When designing with the L9980, it is essential to ensure proper PCB layout with adequate copper area for heat dissipation, especially when driving high currents. The SPI interface should be isolated from high-current traces to minimize noise coupling. Additionally, external flyback diodes are recommended when driving inductive loads to prevent voltage spikes that could damage the device. The L9980's built-in protection features provide a robust solution for demanding applications, but careful attention to thermal management and layout is critical for reliable operation.
L9980-TR - Automotive Quad Low-Side Driver | STMicroelectronics
The L9980-TR is a monolithic quad low-side driver IC from STMicroelectronics, designed for automotive and industrial applications requiring robust, high-current switching. It integrates four independent low-side power outputs with built-in protection features, making it suitable for driving resistive, inductive, and capacitive loads such as relays, solenoids, and lamps. The device operates over a wide supply voltage range and is housed in a compact surface-mount package, enabling space-efficient PCB designs. A low-side driver is a type of power switch that connects the load to ground when activated, with the load typically connected between the positive supply and the driver output. In automotive systems, low-side drivers are essential for controlling actuators, indicators, and other electrical loads, providing a safe and efficient means of switching high currents. The L9980-TR integrates four such drivers in a single package, reducing component count and simplifying system design. Key features of the L9980-TR include four independent output channels, each capable of handling continuous currents up to 1.5 A, with a maximum supply voltage of 40 V. The device incorporates overcurrent protection, thermal shutdown, and output clamping for inductive loads, ensuring reliable operation under fault conditions. Its logic-level inputs are compatible with 3.3 V and 5 V microcontrollers, facilitating direct interfacing with modern automotive ECUs. From a technical perspective, the L9980-TR utilizes a robust bipolar-CMOS-DMOS (BCD) process technology, which combines low power consumption with high current capability. The outputs are designed to sink current, with a low saturation voltage to minimize power dissipation. The device also features a diagnostic output that can be used to monitor the status of each channel, enabling fault detection and system-level diagnostics. This makes the L9980-TR particularly well-suited for safety-critical applications where load integrity must be continuously verified. Typical applications include automotive body control modules, where it drives exterior lighting, wiper motors, and door lock actuators; industrial PLCs for controlling solenoids and relays; and general-purpose switching in 12 V and 24 V systems. The wide operating temperature range of -40°C to +150°C ensures reliable performance in harsh environments. When designing with the L9980-TR, it is important to consider the thermal dissipation of the package, especially when driving multiple channels at high current simultaneously. Adequate PCB copper area and proper layout are essential to keep the junction temperature within safe limits. Additionally, the use of freewheeling diodes or the built-in output clamping is recommended when driving inductive loads to prevent voltage spikes.
L9981 - Automotive Quad Low-Side Driver | STMicroelectronics
The L9981 is a quad low-side driver IC from STMicroelectronics, designed for automotive and industrial applications requiring robust, high-current switching. It integrates four independent low-side power switches with built-in protection features, making it suitable for driving resistive, inductive, and capacitive loads such as relays, solenoids, and lamps. The device operates over a wide supply voltage range and is available in a PowerSO-20 package, offering excellent thermal performance for high-current applications. A low-side driver is a type of power switch that connects the load to ground when activated, allowing the microcontroller to control high-power loads with minimal logic-level signals. In automotive systems, low-side drivers are essential for controlling actuators, motors, and lighting, where they provide a safe and efficient interface between the electronic control unit (ECU) and the physical load. The L9981 fits into the broader category of power management ICs, specifically within the smart power switch family, which combines power switching with diagnostic and protection functions. Key features of the L9981 include four independent output channels, each capable of delivering up to 1.5 A continuous current, with a maximum supply voltage of 40 V. The device incorporates overcurrent, overtemperature, and short-circuit protection, ensuring reliable operation in harsh environments. It also features a serial peripheral interface (SPI) for advanced diagnostics and control, allowing the microcontroller to monitor output status and fault conditions in real time. The PowerSO-20 package provides a low thermal resistance of 35 °C/W, enabling efficient heat dissipation without external heatsinks in moderate power applications. The L9981 utilizes a robust BCD (Bipolar-CMOS-DMOS) process technology, which combines the benefits of bipolar, CMOS, and DMOS transistors to achieve high current capability, low on-resistance, and precise analog control. This architecture ensures stable performance across temperature and supply variations, making it suitable for automotive-grade applications that require high reliability. The SPI interface simplifies system integration, reducing the number of GPIO pins needed and enabling advanced features such as PWM control and fault reporting. Typical applications include automotive body control modules, where the L9981 drives exterior lighting, wiper motors, and door locks; industrial automation for controlling solenoids and valves; and general-purpose power switching in embedded systems. The device's wide operating temperature range of -40°C to +150°C ensures reliable operation in extreme conditions. When designing with the L9981, it is critical to ensure proper PCB layout with adequate copper area for thermal dissipation, especially when driving high currents. Additionally, the SPI interface requires careful timing and pull-up resistors on the data lines to ensure reliable communication. The device's protection features should be configured appropriately to match the load characteristics and prevent false triggering.
L9981-TR - Automotive Quad Low-Side Driver | STMicroelectronics
The L9981-TR is a quad low-side driver IC from STMicroelectronics, designed for automotive and industrial applications requiring robust, high-current switching. It integrates four independent low-side outputs with built-in protection features, making it suitable for driving resistive, inductive, and capacitive loads such as relays, solenoids, and LEDs. The device operates over a wide supply voltage range and is available in a compact surface-mount package, enabling space-efficient PCB designs. A low-side driver is a type of power switch that connects the load to ground when activated, allowing the load to be powered from a positive supply rail. In automotive systems, low-side drivers are commonly used to control actuators, lamps, and motors, where the load is connected between the battery positive terminal and the driver output. The L9981-TR belongs to the family of smart power switches, which integrate protection and diagnostic features to enhance system reliability. Key features of the L9981-TR include four independent output channels, each capable of handling continuous currents up to [DATA_NEEDED: maximum output current per channel] A, with built-in overcurrent, overtemperature, and short-circuit protection. The device also features a serial peripheral interface (SPI) for advanced diagnostics and control, allowing real-time monitoring of output status and fault conditions. The operating voltage range is [DATA_NEEDED: supply voltage range] V, and the device is qualified to AEC-Q100 standards for automotive applications. The L9981-TR utilizes a robust BCD (Bipolar-CMOS-DMOS) process technology, which combines high-voltage capability with low on-resistance and fast switching performance. This architecture ensures efficient power delivery and minimizes power dissipation, even at high switching frequencies. The integrated protection features reduce the need for external components, simplifying the overall system design and improving reliability. Typical applications include automotive body control modules, lighting control, relay and solenoid drivers, and industrial automation systems. The device's SPI interface enables seamless integration with microcontrollers, providing enhanced diagnostic capabilities for predictive maintenance and fault detection. The wide operating temperature range of -40°C to +150°C makes it suitable for harsh environments. When designing with the L9981-TR, it is essential to ensure proper thermal management by providing adequate copper area on the PCB for heat dissipation. Additionally, the SPI interface should be configured correctly to enable fault reporting and output control. The device's protection features should be considered in the system design to avoid unintended shutdowns during transient conditions.
L9982 - Automotive Quad Low-Side Driver | STMicroelectronics
The L9982 is an automotive-grade quad low-side driver from STMicroelectronics, designed for driving resistive, inductive, and capacitive loads in 12V and 24V vehicle electrical systems. It integrates four independent low-side power outputs with built-in protection features, making it suitable for controlling relays, solenoids, LEDs, and small motors in body control modules, lighting systems, and actuator drivers. A low-side driver is a power switch that connects the load to ground when activated, with the load connected between the positive supply and the driver output. In automotive systems, low-side drivers are commonly used to switch grounded loads such as lamps, relays, and solenoids, where the control signal from a microcontroller (MCU) activates the driver to sink current. The L9982 belongs to the power management IC family, specifically within the smart power switch category, which integrates logic, protection, and power stages in a single package. Key features of the L9982 include four independent low-side outputs with a typical current capability of 1A per channel, an operating voltage range of 5.5V to 36V, and a low quiescent current for battery-powered applications. Each output includes overcurrent protection, thermal shutdown, and ESD protection, ensuring robust operation in harsh automotive environments. The device is available in a PowerSO-20 package, which provides excellent thermal performance for power dissipation. The L9982 utilizes a vertical power MOSFET technology, enabling low on-resistance (typically 0.5 ohm) and efficient switching. The device is designed to operate over a wide temperature range of -40°C to +150°C, meeting AEC-Q100 automotive qualification standards. The integrated protection features reduce external component count and improve system reliability, making it an ideal choice for automotive body electronics. Typical applications include automotive lighting control (headlamps, tail lamps, interior lights), relay and solenoid drivers for door locks, window lifts, and seat adjustments, and LED lighting modules. The device's ability to handle inductive loads with built-in freewheeling diodes simplifies design and reduces EMI. When designing with the L9982, ensure proper PCB layout with adequate copper area for thermal dissipation, and place decoupling capacitors close to the supply pins. The device's protection features allow direct connection to MCU outputs, but external pull-up resistors may be needed for open-drain configurations.
L9984 - Automotive Quad Low-Side Driver | STMicroelectronics
The L9984 is a monolithic quad low-side driver designed by STMicroelectronics for automotive and industrial applications. It integrates four independent low-side power switches with built-in protection features, making it suitable for driving resistive, inductive, and capacitive loads such as relays, solenoids, and lamps. The device operates from a supply voltage range of 4.5V to 40V, with each output capable of sinking up to 1.5A continuous current. The L9984 is available in a PowerSO-20 package, providing excellent thermal performance for high-current switching applications. A low-side driver is a type of power switch that connects the load to ground when activated, allowing the microcontroller to control high-side loads through a simple logic interface. In automotive systems, low-side drivers are essential for controlling actuators, lights, and motors, where the load is connected between the battery positive terminal and the driver output. The L9984 belongs to the family of smart power switches, which integrate protection and diagnostic features to enhance system reliability and reduce external component count. Key features of the L9984 include overcurrent protection, thermal shutdown, and undervoltage lockout, ensuring safe operation under fault conditions. Each channel has an open-load detection capability, which is critical for diagnosing wiring faults in automotive harnesses. The device also features a serial peripheral interface (SPI) for advanced diagnostics and control, allowing the microcontroller to read fault status and control each output independently. The outputs are protected against short-circuit and over-temperature, with a typical overcurrent threshold of 2.5A per channel. The L9984 utilizes a robust BCD (Bipolar-CMOS-DMOS) technology, which combines the benefits of bipolar analog circuits, CMOS logic, and DMOS power transistors. This technology enables high current handling with low on-resistance, typically 0.5 ohm per channel, minimizing power dissipation and improving efficiency. The device is designed to operate over the automotive temperature range of -40°C to +150°C, making it suitable for under-hood applications. The PowerSO-20 package with exposed pad provides a low thermal resistance of 35°C/W, allowing efficient heat dissipation without external heatsinks in moderate power applications. Typical applications include automotive body control modules, lighting control, relay drivers, and solenoid drivers in transmission control units. The L9984 is also used in industrial automation for driving valves and actuators, where its robust protection features ensure reliable operation in harsh environments. The SPI interface enables seamless integration with microcontrollers, providing real-time diagnostics and reducing wiring complexity. When designing with the L9984, it is essential to ensure proper PCB layout with adequate copper area for heat dissipation, especially when driving multiple channels at high current. The exposed pad should be connected to the ground plane with multiple vias to enhance thermal performance. Additionally, the SPI lines should be kept short and shielded to minimize electromagnetic interference, and the supply voltage should be decoupled with a 100nF ceramic capacitor close to the VCC pin.
L9985 - Automotive Quad Low-Side Driver | STMicroelectronics
The L9985 is a quad low-side driver IC from STMicroelectronics, designed for automotive and industrial applications requiring robust, high-current switching. It integrates four independent low-side drivers with built-in protection features, making it suitable for driving resistive, inductive, and capacitive loads such as relays, solenoids, and lamps. The device operates over a wide supply voltage range and is housed in a PowerSO-20 package, offering excellent thermal performance for high-current applications. A low-side driver is a type of power switch that connects the load to ground when activated, with the load connected between the positive supply and the driver output. In automotive systems, low-side drivers are commonly used to control actuators, lamps, and relays, where the load is referenced to the battery positive rail. The L9985 belongs to the family of smart power switches, which integrate protection and diagnostic features to enhance system reliability. Key features of the L9985 include four independent output channels, each capable of delivering up to 1.5 A continuous current, with a maximum supply voltage of 40 V. The device features overcurrent protection, thermal shutdown, and an open-load detection function, which are essential for automotive safety. Additionally, the L9985 provides a serial peripheral interface (SPI) for advanced diagnostics and control, allowing the microcontroller to monitor and configure each channel independently. The L9985 utilizes ST's proprietary VIPower technology, which combines vertical current flow with intelligent power management, resulting in low on-resistance and efficient power dissipation. The PowerSO-20 package, with an exposed pad, ensures effective heat transfer to the PCB, enabling reliable operation at high ambient temperatures up to 150°C. The device is AEC-Q100 qualified, meeting the stringent quality and reliability standards required for automotive electronics. Typical applications include automotive body control modules, lighting control, relay drivers, and solenoid drivers in transmission and braking systems. The L9985 is also suitable for industrial automation, where robust switching and diagnostic capabilities are required. Its SPI interface simplifies system integration, reducing the number of I/O pins needed on the microcontroller. When designing with the L9985, it is crucial to ensure proper PCB layout for thermal management, especially when driving multiple channels at high current. The exposed pad should be connected to a large copper area to dissipate heat effectively. Additionally, the SPI interface requires careful attention to signal integrity and timing to avoid communication errors.
L9986 - Automotive Quad Low-Side Driver | STMicroelectronics
The L9986 is a quad low-side driver IC from STMicroelectronics, designed for automotive and industrial applications requiring robust, high-current switching. It integrates four independent low-side power switches with built-in protection features, making it suitable for driving resistive, inductive, and capacitive loads such as relays, solenoids, and lamps. The device operates over a wide supply voltage range and provides diagnostic feedback for fault detection, enhancing system reliability. A low-side driver is a type of power switch that connects the load to ground when activated, allowing the load to be powered from a positive supply rail. In automotive systems, low-side drivers are commonly used to control actuators, lights, and motors, where the load is connected between the battery positive terminal and the driver output. The L9986 belongs to the family of smart power switches, which integrate protection and diagnostic functions to simplify system design and improve safety. Key features of the L9986 include four independent output channels, each capable of delivering up to 1.5 A continuous current, with a maximum supply voltage of 40 V. The device features overcurrent, overtemperature, and short-circuit protection, as well as an open-load detection function for diagnostic purposes. The outputs are protected against inductive load demagnetization, and the device is AEC-Q100 qualified for automotive applications. The L9986 is built using STMicroelectronics' VIPower M0-5 technology, which combines vertical P-channel power MOSFETs with CMOS control logic on a single chip. This integration allows for low quiescent current consumption and fast switching performance, while maintaining high thermal efficiency. The device is available in a PowerSO-16 package, which provides excellent thermal dissipation for high-current operation. Typical applications include automotive body control modules, relay drivers, solenoid drivers, and LED lighting control. The L9986 is also suitable for industrial automation and general-purpose switching applications where multiple low-side loads need to be controlled with minimal external components. When designing with the L9986, it is important to consider the thermal dissipation at high output currents and to provide adequate PCB copper area for heat sinking. Additionally, proper decoupling of the supply voltage and careful layout of the output traces are essential to minimize EMI and ensure reliable operation.
L9988-TR - Automotive Quad Low-Side Driver | STMicroelectronics
The L9988-TR is a monolithic quad low-side driver IC from STMicroelectronics, designed for automotive and industrial applications requiring robust, high-current switching. It integrates four independent low-side power MOSFET outputs with built-in protection features, making it suitable for driving resistive, inductive, and capacitive loads such as relays, solenoids, and lamps. The device operates over a wide supply voltage range and is housed in a compact PowerSO-20 package, offering excellent thermal performance for high-current operation. A low-side driver is a type of power switch that connects the load to ground when activated, with the load connected between the positive supply and the driver output. In automotive systems, low-side drivers are commonly used to control grounded loads like incandescent bulbs, DC motors, and heating elements. The L9988-TR belongs to the family of smart power switches, which integrate protection and diagnostic functions alongside the power stage, reducing external component count and improving system reliability. Key features of the L9988-TR include four output channels with a typical on-resistance of 0.5 ohm per channel, capable of handling continuous currents up to 3 A per channel. Each output is protected against short-circuit, over-temperature, and over-voltage conditions, with built-in current limiting and thermal shutdown. The device also features a serial peripheral interface (SPI) for advanced diagnostics and control, allowing real-time monitoring of output status and fault conditions. The operating voltage range is 5.5 V to 36 V, making it compatible with standard automotive battery systems, and the junction temperature range is -40°C to +150°C, suitable for under-hood environments. The L9988-TR utilizes a robust BCD (Bipolar-CMOS-DMOS) process technology, which combines high-voltage capability with low on-resistance and fast switching. The SPI interface enables daisy-chaining of multiple devices, simplifying wiring in multi-channel systems. The device also includes a dedicated enable pin for power-saving modes and a reset function for fault recovery. The PowerSO-20 package features an exposed pad for enhanced thermal dissipation, allowing the device to handle high power without external heatsinks in many applications. Typical applications include automotive body control modules, where the L9988-TR drives exterior lighting, wiper motors, and door lock actuators. It is also used in industrial automation for controlling solenoids and relays, and in off-road vehicles for auxiliary lighting and winch control. The wide input voltage range and robust protection make it ideal for harsh environments where voltage transients and load faults are common. When designing with the L9988-TR, ensure adequate PCB copper area for thermal management, especially when driving high currents continuously. The SPI interface requires proper pull-up resistors and careful layout to avoid noise issues. Additionally, consider using a freewheeling diode across inductive loads to prevent voltage spikes that could damage the output stage.
L99MOD53XPTR - Multi-Channel MOSFET Driver | STMicroelectronics
The L99MOD53XPTR is a multi-channel MOSFET driver IC from STMicroelectronics, designed for automotive and industrial applications requiring high-side and low-side driver configurations. It integrates multiple channels with built-in protection features, making it suitable for driving resistive, inductive, and capacitive loads. The device operates over a wide supply voltage range and provides diagnostic feedback for fault detection. A MOSFET driver is a power management IC that translates low-power control signals from a microcontroller into high-current, high-voltage signals capable of driving the gate of power MOSFETs. In the hierarchy of power management, a MOSFET driver sits between the logic controller and the power stage, ensuring efficient switching and protection. The L99MOD53XPTR belongs to the family of smart power drivers, which integrate protection, diagnostics, and control logic on a single chip. Key features of the L99MOD53XPTR include multiple output channels, each capable of driving external N-channel MOSFETs, with programmable current control and diagnostic functions. It supports a supply voltage range of [DATA_NEEDED: supply voltage range] and offers overcurrent, overtemperature, and short-circuit protection. The device is available in a [DATA_NEEDED: package type] package, suitable for surface-mount assembly. The L99MOD53XPTR utilizes a robust architecture with integrated charge pumps and level shifters to drive high-side MOSFETs. It communicates with the host microcontroller via a serial peripheral interface (SPI), enabling real-time monitoring and control. The device is designed to meet automotive-grade requirements, including AEC-Q100 qualification, ensuring reliable operation in harsh environments. Typical applications include automotive body control modules, LED lighting control, DC motor control, and solenoid drivers. In automotive body control, the L99MOD53XPTR can drive multiple loads such as relays, bulbs, and motors, with diagnostic feedback for fault detection. In industrial automation, it provides a flexible solution for driving various actuators and valves. When designing with the L99MOD53XPTR, ensure proper thermal management by providing adequate PCB copper area for heat dissipation. The SPI interface allows configuration of output current limits and fault handling, which should be set according to the load requirements. Additionally, consider the supply voltage range and ensure it matches the application's power rail.
STGAP1BS - 4A Galvanically Isolated Single Gate Driver | STMicroelectronics
The STGAP1BS is a galvanically isolated single gate driver from STMicroelectronics, designed to drive high-power IGBTs and SiC MOSFETs in industrial and automotive applications. It provides a 4A sink/source peak output current and features a 4 kV galvanic isolation barrier, making it suitable for motor drives, power supplies, and renewable energy inverters. The device is available in a wide-body SO-8W package, which offers a compact footprint while maintaining high isolation voltage. A gate driver is a power amplifier that accepts a low-power input from a controller IC and produces a high-current drive output to control the gate of a power transistor. In the hierarchy of power electronics, a gate driver sits between the control stage (microcontroller or DSP) and the power stage (IGBT or MOSFET), ensuring fast and reliable switching. The STGAP1BS integrates a galvanic isolation barrier, which separates the input and output grounds, protecting the low-voltage control circuitry from high-voltage transients and ground loops. Key features of the STGAP1BS include a 4A peak output current, 4 kV galvanic isolation, 100 V/ns common-mode transient immunity (CMTI), and a wide supply voltage range from 4.5V to 18V on the output side. The device also features a Miller clamp function to prevent spurious turn-on during high dv/dt events, and a desaturation protection input for overcurrent detection. These features make it ideal for driving SiC MOSFETs and IGBTs in high-frequency, high-efficiency power converters. The STGAP1BS uses STMicroelectronics' proprietary galvanic isolation technology, which provides robust isolation with low propagation delay (typically 75 ns) and tight part-to-part matching. The device supports both bipolar and unipolar supply configurations, allowing flexible design for various gate drive requirements. The wide-body SO-8W package ensures adequate creepage and clearance distances for 4 kV isolation, meeting IEC 60747-17 requirements. Typical applications include motor drives for industrial automation, solar inverters, uninterruptible power supplies (UPS), and electric vehicle (EV) charging stations. The STGAP1BS is also suitable for welding equipment and induction heating systems, where high reliability and fast switching are critical. When designing with the STGAP1BS, ensure proper PCB layout to minimize parasitic inductance in the gate drive loop. Use a low-ESR capacitor close to the VCC and GND pins to supply the high peak currents. The Miller clamp pin should be connected to the gate of the power transistor with a short, low-inductance trace to effectively suppress dv/dt-induced turn-on.
STGAP2HSA - 4A Galvanically Isolated Gate Driver | STMicroelectronics
The STGAP2HSA is a galvanically isolated single-channel gate driver from STMicroelectronics, designed to drive high-power IGBTs and SiC MOSFETs in industrial and automotive applications. It delivers up to 4A of peak output current with a wide supply voltage range of 3V to 18V on the primary side and 4.5V to 18V on the secondary side. The device features a 100V/ns common-mode transient immunity (CMTI) and a propagation delay of 75ns, ensuring robust performance in noisy power environments. A galvanic isolation barrier is a critical safety feature in power electronics that electrically separates the low-voltage control circuitry from the high-voltage power stage, preventing ground loops and protecting sensitive logic. The STGAP2HSA uses a capacitive isolation technology that provides reinforced isolation up to 6kV, meeting stringent safety standards for industrial motor drives and solar inverters. This isolation barrier is essential in applications where the control and power grounds are at different potentials, such as in half-bridge or full-bridge topologies. Key features of the STGAP2HSA include a 4A sink/source peak current, a 75ns propagation delay, and a 100V/ns CMTI. The device also offers a programmable dead time function, a shutdown pin for fault protection, and a separate output pin for Miller clamp, which prevents spurious turn-on of the power switch during high dv/dt events. The wide supply voltage range and rail-to-rail output make it compatible with a variety of gate drive circuits. The STGAP2HSA is built using STMicroelectronics' proprietary galvanic isolation technology, which uses a high-voltage capacitor to transfer signals across the isolation barrier. This architecture achieves low power consumption and high reliability, with a typical quiescent current of 1.5mA on the primary side. The device is available in a compact SO-8 package, which simplifies PCB layout and reduces board space in space-constrained designs. Typical applications include industrial motor drives, solar inverters, uninterruptible power supplies (UPS), and electric vehicle (EV) charging systems. In motor drives, the STGAP2HSA drives the IGBTs in the inverter stage, providing fast and reliable switching to minimize losses. In solar inverters, it drives the SiC MOSFETs in the boost converter, enabling high-frequency operation and improved efficiency. When designing with the STGAP2HSA, it is important to ensure proper PCB layout to minimize parasitic inductance in the gate drive loop. The Miller clamp output should be connected to the gate of the power switch to prevent false turn-on. Additionally, the dead time programming pin should be configured with an external resistor to set the desired dead time for the application.
STGAP2SA - 4A Galvanic Isolated Single Gate Driver | STMicroelectronics
The STGAP2SA is a galvanic isolated single gate driver manufactured by STMicroelectronics, designed to drive wide-bandgap power switches such as SiC MOSFETs and GaN HEMTs. It provides a 4A sink/source peak output current and features a 4 kV galvanic isolation barrier, making it suitable for high-voltage and high-reliability applications. The device is available in a narrow-body SO-8 package, which is compact and suitable for space-constrained designs. A galvanic isolated gate driver is a type of gate driver IC that provides electrical isolation between the input control side and the output power stage. This isolation is critical in applications where the power stage operates at high voltages, as it protects the low-voltage control circuitry from transients and ground potential differences. The STGAP2SA belongs to the category of isolated gate drivers, which are essential components in power electronics systems such as motor drives, power supplies, and inverters. Key features of the STGAP2SA include a 4A peak output current, a wide supply voltage range of 3V to 18V on the output side, and a 4 kV galvanic isolation rating. The device also offers a propagation delay of 75 ns, which is critical for high-frequency switching applications. The input side operates from 3V to 18V, and the device includes a Miller clamp function to prevent false turn-on of the power switch during high dv/dt events. The STGAP2SA utilizes STMicroelectronics' proprietary galvanic isolation technology, which provides robust isolation performance with high common-mode transient immunity (CMTI) of 100 V/ns. This ensures reliable operation in noisy environments. The device also features an under-voltage lockout (UVLO) on both the input and output sides, protecting the power switch from insufficient gate drive voltage. Typical applications for the STGAP2SA include motor drives, industrial power supplies, solar inverters, and electric vehicle (EV) charging systems. Its high output current and fast propagation delay make it suitable for driving SiC MOSFETs and GaN HEMTs in high-frequency power converters. The device is also used in welding equipment and induction heating systems where high reliability and isolation are required. When designing with the STGAP2SA, it is important to ensure proper PCB layout to minimize parasitic inductance and maintain isolation creepage distances. The Miller clamp feature should be utilized in applications with high dv/dt to prevent unintended turn-on. Additionally, the UVLO thresholds should be considered to ensure the gate driver operates within the specified voltage range.
STGAP4S - 4-Channel Isolated Gate Driver | STMicroelectronics
The STGAP4S is a 4-channel isolated gate driver from STMicroelectronics, designed for driving IGBTs and MOSFETs in high-voltage applications. It provides four independent galvanically isolated channels, each capable of delivering up to 4 A peak output current, making it suitable for three-phase inverters, motor drives, and industrial power supplies. The device operates from a supply voltage range of 4.5 V to 18 V on the logic side and 4.5 V to 18 V on the driver side, with a common-mode transient immunity (CMTI) of 100 V/ns, ensuring robust operation in noisy environments. An isolated gate driver is a type of gate driver that provides electrical isolation between the control circuitry and the power stage, protecting low-voltage logic from high-voltage transients and ground loops. It is a critical component in power electronics, enabling safe and reliable switching of power semiconductors. The STGAP4S belongs to the category of isolated gate drivers, which are part of the broader family of gate drivers, power management ICs, and semiconductor devices. Key features of the STGAP4S include a 4 A peak output current per channel, a wide supply voltage range, and a propagation delay of 100 ns. It also features an interlock function to prevent cross-conduction, a dedicated enable pin for each channel, and a fault output for system monitoring. The device is available in a 36-pin SSOP package, offering a compact solution for multi-channel gate drive applications. The STGAP4S utilizes STMicroelectronics' galvanic isolation technology, providing reinforced isolation up to 6 kV. The device includes a Miller clamp on each channel to prevent spurious turn-on of the power switch, and a desaturation protection feature for overcurrent detection. The architecture ensures high noise immunity and reliable operation in harsh industrial environments. Typical applications include motor drives, three-phase inverters, uninterruptible power supplies (UPS), and industrial power supplies. The STGAP4S is also suitable for renewable energy systems such as solar inverters and wind turbine converters. Its high CMTI and low propagation delay make it ideal for high-frequency switching applications. When designing with the STGAP4S, it is important to ensure proper PCB layout to minimize parasitic inductance and maintain signal integrity. The device requires careful attention to the isolation barrier and creepage distances to meet safety standards. Additionally, the supply decoupling should be implemented with low-ESR capacitors close to the VCC and GND pins.
STPM801 - Programmable Current Limiting Switch | STMicroelectronics
The STPM801 is a programmable current limiting switch from STMicroelectronics, designed for power distribution and protection in a wide range of applications. It integrates a high-side MOSFET switch with programmable current limiting, thermal shutdown, and under-voltage lockout, providing robust protection for downstream circuitry. The device operates from an input voltage range of 2.7V to 5.5V and can deliver up to 1.5A of continuous current, making it suitable for USB ports, hot-swap applications, and general power management. A current limiting switch is a type of power management IC that controls the flow of electrical current to a load, protecting the power source and the load from overcurrent conditions. It is a key component in the power management hierarchy, sitting between the power source (such as a battery or USB port) and the load (such as a peripheral device). By integrating a MOSFET switch, current sensing, and protection features, it simplifies circuit design and enhances system reliability. Key features of the STPM801 include programmable current limiting via an external resistor, allowing designers to set the current limit from 100mA to 1.5A. It also features a low quiescent current of 50µA, a fast 1ms turn-on time, and a low on-resistance of 70mΩ, minimizing power loss. The device includes thermal shutdown at 150°C and under-voltage lockout at 2.5V, ensuring safe operation under fault conditions. It is available in a compact SOT-23-5 package, ideal for space-constrained designs. The STPM801 uses a high-side N-channel MOSFET architecture with an internal charge pump to drive the gate, enabling low voltage drop and efficient power delivery. The current limit is set by an external resistor connected to the ILIM pin, providing flexibility for different applications. The device also features a fault output pin that signals overcurrent or thermal shutdown events, enabling system-level monitoring and control. Typical applications include USB port power distribution, hot-swap power management, and general-purpose load switching in consumer electronics, industrial control, and automotive systems. The wide input voltage range and programmable current limit make it versatile for various power distribution scenarios. When designing with the STPM801, ensure the external current-limit resistor is placed close to the ILIM pin to minimize parasitic inductance. The input and output capacitors should be placed near the device to ensure stable operation and reduce voltage transients. Proper thermal management is essential when operating at high currents, as the device dissipates power proportional to the current and voltage drop.
UCC21710QDWRQ1 - 10A Isolated Gate Driver | TI | Automotive
The UCC21710QDWRQ1 from Texas Instruments is an automotive-grade, galvanically isolated single-channel gate driver designed for up to 1700V SiC MOSFETs and IGBTs. It delivers ±10A peak source and sink current, with a 5.7kVrms isolation rating and high common-mode transient immunity (CMTI) for robust performance in noisy power environments. The device is housed in a 16-pin SOIC (DW) package and is AEC-Q100 qualified for automotive applications. A gate driver is a power amplifier that accepts a low-power input from a controller IC and produces a high-current drive output to efficiently switch power transistors such as IGBTs and SiC MOSFETs. In the hierarchy of power electronics, a gate driver sits between the control stage (microcontroller/DSP) and the power stage (switching devices), forming a critical link in the signal chain. Isolated gate drivers add galvanic isolation to protect low-voltage control circuitry from high-voltage transients and ground loops, which is essential in motor drives, inverters, and power supplies. Key features include fast overcurrent and short-circuit protection with shunt current sensing, fault reporting, active Miller clamp, and input/output side power supply UVLO. The isolated analog-to-PWM sensor enables easy temperature or voltage sensing across the isolation barrier. The device supports up to 1.5kVrms working voltage and 12.8V to 18V output supply range, with a typical propagation delay of 60ns and CMTI of 100V/ns. The UCC21710-Q1 uses SiO2 capacitive isolation technology, providing reliable isolation and high-speed signal transfer. Its advanced protection features optimize SiC and IGBT switching behavior, reducing switching losses and enhancing system robustness. The active Miller clamp prevents false turn-on during high dv/dt events, while the fast fault response (within 100ns) protects the power stage from damage. Typical applications include traction inverters in electric vehicles, on-board chargers, DC-DC converters, motor drives, and industrial power supplies. The automotive qualification and wide temperature range (-40°C to +150°C) make it suitable for under-hood and high-temperature environments. When designing with this device, ensure proper PCB layout with short, low-inductance gate drive loops and adequate creepage/clearance for the isolation rating. The DESAT protection requires an external diode and resistor network to sense collector-emitter voltage, and the shunt current sensing input should be filtered to avoid false triggering.
VIPERGAN50 - 50W GaN Power Stage | STMicroelectronics
The STMicroelectronics VIPERGAN50 is a high-voltage GaN (Gallium Nitride) power stage designed for high-efficiency power conversion applications. It integrates a 650V enhancement-mode GaN HEMT with a gate driver and protection features in a compact QFN package, enabling switching frequencies up to 1 MHz. This device targets applications requiring high power density and efficiency, such as USB-PD chargers, adapters, and server power supplies. A GaN power stage is a type of power semiconductor module that combines a Gallium Nitride high-electron-mobility transistor (HEMT) with driving and protection circuitry. GaN technology offers lower gate charge and output capacitance compared to silicon MOSFETs, allowing faster switching transitions and reduced switching losses. In the hierarchy of power management, a GaN power stage falls under power switches, which are essential components in switching power converters like flyback, boost, and LLC topologies. Key features of the VIPERGAN50 include a 650V drain-source voltage rating, a typical on-resistance of 150 mΩ, and a maximum output power of 50W in a flyback topology. The integrated driver simplifies PCB layout and reduces component count, while built-in overcurrent, overtemperature, and undervoltage lockout protections enhance system reliability. The device operates over a junction temperature range of -40°C to +150°C, making it suitable for demanding environments. The VIPERGAN50 leverages STMicroelectronics' proprietary GaN technology, which provides a figure of merit (RDS(on) × Qg) significantly lower than silicon super-junction MOSFETs. This results in higher efficiency at light loads and reduced heat sink requirements. The device's fast switching capability enables smaller magnetic components, contributing to overall system miniaturization. Typical applications include USB Power Delivery (USB-PD) chargers, AC-DC adapters, and open-frame power supplies for consumer and industrial electronics. The high switching frequency and efficiency make it ideal for designs where space and thermal management are critical. When designing with the VIPERGAN50, ensure proper PCB layout with short, low-inductance paths for the gate drive loop and power loop. Adequate thermal vias under the exposed pad are essential to dissipate heat effectively. The device's integrated protections reduce external component count, but careful attention to the bootstrap capacitor and dead-time settings is recommended for optimal performance.
VND5050K-E - 41A High-Side Driver, 36V | STMicroelectronics
The STMicroelectronics VND5050K-E is a monolithic high-side driver with a 41A current limit and 36V operating voltage, housed in a PowerSSO-12 package. It is designed for driving resistive, inductive, and capacitive loads in automotive and industrial applications, featuring built-in protection against overcurrent, overtemperature, and short-circuit conditions. A high-side driver is a power management IC that connects a load to the positive supply rail, providing switching and protection functions. It integrates a power MOSFET, control logic, and diagnostic circuitry in a single package, simplifying system design and enhancing reliability. In the hierarchy of power management, a high-side driver falls under power switches, which are part of discrete power semiconductors and power management ICs. Key features of the VND5050K-E include a very low ON-state resistance of 50 mOhm, a wide operating voltage range from 4.5V to 36V, and a standby current of only 0.5 uA. It provides analog current sense output for load diagnostics and has a dedicated status pin for fault reporting. The device is AEC-Q100 qualified, making it suitable for automotive environments. The VND5050K-E uses STMicroelectronics' VIPower M0-5 technology, which integrates a vertical P-channel MOSFET with CMOS control logic. This architecture enables high current handling with low power dissipation and fast switching. The PowerSSO-12 package offers excellent thermal performance with a thermal resistance of 40 C/W, allowing operation at high ambient temperatures without external heatsinking in many applications. Typical applications include automotive lighting control, DC motor driving, solenoid actuation, and general-purpose load switching in industrial control systems. The device's robust protection features make it ideal for harsh environments where load faults are common. When designing with the VND5050K-E, ensure adequate PCB copper area for heat dissipation and place the sense resistor close to the device for accurate current sensing. The input pin is compatible with both 3.3V and 5V logic levels, simplifying microcontroller interfacing.