VNH7070ASTR - 15A Automotive H-Bridge Driver | STMicroelectronics
MPN: VNH7070ASTR β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.85 | $4.85 |
| 10 | $4.36 | $43.60 |
| 100 | $3.88 | $388.00 |
| 500 | $3.49 | $1,745.00 |
| 1,000 | $3.1 | $3,100.00 |
Drop-in alternatives for VNH7070ASTR β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
VNH7070AS
β Drop-Inπ Reference alternative (not in catalog)
VNH7070AYTR
β Drop-Inπ Reference alternative (not in catalog)
BTN8982TA
β Drop-Inπ Reference alternative (not in catalog)
MC33932
β Drop-Inπ Reference alternative (not in catalog)
VNH7070ASTR Maximum Ratings & Electrical Characteristics
| Output Current | 15 A |
| Supply Voltage Range | 4 V to 28 V |
| ON-Resistance (per switch) | 40 mOhm |
| PWM Frequency | 20 kHz |
| Package | PowerSSO-36 |
| Mounting Type | Surface Mount |
| Operating Temperature Range | -40C to +150C |
| Thermal Resistance (junction-to-ambient) | 30 C/W |
| Current Sense Output | Yes (analog proportional) |
| Diagnostic Output | Yes (overcurrent, overtemperature, open-load) |
| Protection Features | Undervoltage lockout, overvoltage clamp, thermal shutdown with auto-restart |
| Technology | VIPower M0 |
| Automotive Grade | AEC-Q100 qualified |
| RoHS Status | Compliant |
| MSL Level | [DATA_NEEDED: MSL Level] |
VNH7070ASTR Pin Configuration
| Pin 1 | OUT1 β Motor output 1 |
| Pin 2 | OUT2 β Motor output 2 |
| Pin 3 | VS β Supply voltage |
| Pin 4 | GND β Ground |
| Pin 5 | IN1 β Control input 1 |
| Pin 6 | IN2 β Control input 2 |
| Pin 7 | PWM β PWM input for speed control |
| Pin 8 | CS β Current sense output |
| Pin 9 | DIAG β Diagnostic output |
| Pin 10 | EN β Enable input |
| Pin 11 | VCC β Logic supply voltage |
| Pin 12 | GND β Ground |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
VNH7070ASTR is suitable for 6 applications: Automotive Power Windows, Automotive Sunroof Control, Industrial DC Motor Control, Robotics, Pumps and Fans, Automotive Seat Adjusters.
Automotive Power Windows
The VNH7070ASTR provides bidirectional control for DC motors in power windows. Its 15A current capability and 40 mOhm ON-resistance ensure efficient operation, while the integrated current sense allows precise torque control to prevent window jamming. The diagnostic output monitors for overcurrent and overtemperature, enhancing safety. With a 4V to 28V supply range, it operates reliably in 12V automotive systems. The AEC-Q100 qualification ensures durability in harsh environments. In a typical power window module, the VNH7070ASTR is placed between the battery supply and the window motor, with the microcontroller providing PWM signals for speed control. The current sense pin connects to an ADC for load monitoring, and the diagnostic pin triggers fault handling. Proper PCB copper area is essential for thermal management at high currents.
Recommended
Automotive Sunroof Control
The VNH7070ASTR drives the DC motor in sunroof systems, providing smooth bidirectional operation. Its low ON-resistance minimizes power loss, and the current sense output enables anti-pinch detection by monitoring motor current spikes. The device's thermal shutdown protects against overloads, and the wide supply range accommodates voltage fluctuations. In a sunroof control unit, the VNH7070ASTR is controlled by a microcontroller that reads the current sense and diagnostic pins. The PWM input allows variable speed for smooth opening and closing. The PowerSSO-36 package with exposed pad ensures efficient heat dissipation. The diagnostic output can signal open-load conditions, improving system reliability. This application benefits from the device's automotive qualification and robust protection features.
Recommended
Industrial DC Motor Control
In industrial automation, the VNH7070ASTR controls DC motors in conveyor belts, pumps, and fans. Its 15A output current and 20 kHz PWM capability enable precise speed control. The current sense output provides feedback for closed-loop torque control, improving process accuracy. The device's protection features, including overvoltage clamp and thermal shutdown, ensure reliable operation in demanding environments. The wide supply range (4V to 28V) allows use in both 12V and 24V systems. In a typical industrial motor controller, the VNH7070ASTR is interfaced with a PLC or microcontroller that generates PWM signals. The diagnostic pin can be used for predictive maintenance by detecting abnormal load conditions. The PowerSSO-36 package simplifies PCB layout, and the exposed pad aids thermal management.
Recommended
Robotics
The VNH7070ASTR is ideal for robotics applications requiring bidirectional motor control with current sensing. Its high current capability (15A) supports powerful actuators, while the integrated current sense enables precise torque control for delicate manipulation tasks. The device's compact PowerSSO-36 package saves space in robotic systems. The diagnostic output helps detect motor stalls or overloads, improving system reliability. In a robotic arm, the VNH7070ASTR drives each joint motor, with the microcontroller using the current sense feedback to implement force control. The PWM input allows smooth speed regulation. The device's thermal shutdown protects against overheating during prolonged operation. The wide supply range accommodates various battery configurations. The AEC-Q100 qualification ensures robustness, though it is also suitable for non-automotive robotics.
Recommended
Pumps and Fans
The VNH7070ASTR drives DC motors in pumps and fans, providing efficient and reliable operation. Its low ON-resistance reduces power dissipation, improving energy efficiency. The current sense output allows monitoring of motor load, enabling detection of blockages or wear. The device's protection features, including undervoltage lockout and thermal shutdown, ensure safe operation in continuous-duty applications. In a pump system, the VNH7070ASTR is controlled by a microcontroller that adjusts PWM duty cycle to regulate flow rate. The diagnostic pin can trigger alarms on fault conditions. The wide supply range supports both 12V and 24V systems. The PowerSSO-36 package with exposed pad facilitates heat dissipation, making it suitable for enclosed environments. The device's automotive-grade reliability extends to industrial applications.
Recommended
Automotive Seat Adjusters
The VNH7070ASTR provides bidirectional control for seat adjustment motors, enabling smooth and precise positioning. Its 15A current capability handles the high torque required for seat movement, while the current sense output allows detection of obstructions, enhancing safety. The device's diagnostic output monitors for overcurrent and overtemperature, preventing damage. The wide supply range (4V to 28V) ensures compatibility with automotive power systems. In a seat adjuster module, the VNH7070ASTR is controlled by a microcontroller that reads the current sense and diagnostic pins. The PWM input allows variable speed for comfortable adjustment. The PowerSSO-36 package with exposed pad ensures efficient heat dissipation. The AEC-Q100 qualification guarantees reliability in automotive environments. This application benefits from the device's integrated protection and diagnostic features.
Recommended
Recommended Products Summary
Engineering reference data for VNH7070ASTR β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | VNH7070AS | VNH7070AYTR | BTN8982TA | MC33932 |
|---|---|---|---|---|---|
| Package | PowerSSO-36 | PowerSSO-36 | PowerSSO-36 | PowerSSO-36 | PowerSSO-36 |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | Infineon | NXP Semiconductors |
| Output Current | 15 A | 15 A | 15 A | 15 A | 10 A |
| Supply Voltage Range | 4 V to 28 V | 4 V to 28 V | 4 V to 28 V | 5.5 V to 40 V | 5 V to 28 V |
| ON-Resistance | 40 mOhm | 40 mOhm | 40 mOhm | 50 mOhm | 55 mOhm |
| PWM Frequency | 20 kHz | 20 kHz | 20 kHz | 25 kHz | 20 kHz |
| Current Sense | Yes | Yes | Yes | Yes | Yes |
| Diagnostic Output | Yes | Yes | Yes | Yes | Yes |
| Automotive Grade | AEC-Q100 | AEC-Q100 | AEC-Q100 | AEC-Q100 | AEC-Q100 |
Key Differentiators
- Higher output current (15A) compared to MC33932 (10A) (vs MC33932)
- Lower ON-resistance (40 mOhm) than BTN8982TA (50 mOhm) (vs BTN8982TA)
- Same-brand drop-in compatibility with VNH7070AS and VNH7070AYTR (vs VNH7070AS)
Design Notes
The VNH7070ASTR can dissipate significant power at high currents. With a thermal resistance of 30 C/W (junction-to-ambient), a 15A load at 40 mOhm ON-resistance results in approximately 9W dissipation, causing a 270C temperature rise. Ensure adequate PCB copper area (at least 1 square inch) and consider a heatsink or forced airflow for continuous operation above 5A.
Place decoupling capacitors (e.g., 100nF ceramic and 10uF electrolytic) close to the VS and VCC pins to suppress voltage spikes. The current sense pin (CS) requires an external resistor to set the gain; connect it to the microcontroller ADC with a low-pass filter to reduce noise. The diagnostic pin (DIAG) should be pulled up and monitored for fault handling.
Do not exceed the absolute maximum supply voltage of 28V. Ensure the PWM input is properly level-shifted if the microcontroller operates at a different logic voltage. The enable pin (EN) must be high for normal operation; leaving it floating can cause unpredictable behavior. Always verify the pinout against the datasheet before PCB layout, as the PowerSSO-36 package has a specific pin configuration.
Compliance Information
RoHS compliant per STMicroelectronics. AEC-Q100 qualified per Arrow Electronics. REACH and conflict minerals status not specified in provided data.
