BSP752RXUMA2 - 1.3A Smart High-Side Power Switch | Infineon
MPN: BSP752RXUMA2 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.91 | $1.91 |
| 10 | $1.71 | $17.10 |
| 25 | $1.62 | $40.50 |
| 100 | $1.38 | $138.00 |
| 250 | $1.29 | $322.50 |
| 500 | $1.13 | $565.00 |
| 1,000 | $0.94 | $940.00 |
BSP752RXUMA2 Overview
What is a high-side power switch? A high-side power switch sits between the supply rail (e.g., +12 V battery) and the load, replacing mechanical relays and discrete MOSFETs. The category hierarchy is: high-side switch -> load driver -> power distribution switch -> power management IC. By placing the switch on the high side, the load is grounded, simplifying wiring harnesses and improving short-circuit behavior versus low-side switching.
Key features include 1.3 A continuous load current capability, integrated overload protection with active current limitation, short-circuit protection, thermal shutdown with auto-restart, overvoltage protection including load-dump transients, fast demagnetization of inductive loads, reverse-battery protection, and an open-load detection in the OFF state through an external resistor. The status feedback pin reports fault conditions to the microcontroller. According to the Infineon datasheet, the device operates over the automotive -40C to +150C junction temperature range and is qualified to AEC-Q100 standards for automotive environments.
Architecturally, the BSP752RXUMA2 combines a vertical N-channel DMOS output stage with CMOS control logic, charge pump for gate enhancement, and bandgap-referenced protection comparators. The charge pump maintains VGS above threshold even at low supply voltages, while the protection comparators monitor drain current, junction temperature, and supply voltage independently and act within microseconds to safeguard the FET.
Typical applications include automotive body electronics (door modules, seat controllers, mirror adjusters, interior lighting), industrial 24 V load driving, PLC digital outputs, and any application replacing an automotive relay or fuse-protected discrete MOSFET high-side path. The DSO-8-6 footprint is footprint-compatible with other miniPROFET family members for design reuse.
When designing with this part, observe the maximum junction temperature of 150C and provide adequate copper pour on the PG-DSO-8-6 exposed pad for thermal dissipation. Choose external pull-up/pull-down values per the diagnostic pin's specified current to ensure reliable logic levels across temperature.
This page synthesizes distributor pricing tiers, drop-in miniPROFET alternatives sourced from Infineon's product family and cross-brand parametric equivalents, and design notes not consolidated in any single manufacturer document.
Drop-in alternatives for BSP752RXUMA2 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with BSP752RXUMA2 (same form factor and footprint) — differing in Package, Topology, Operating Temperature Range, Continuous Load Current, Diagnostic Output.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
BSP752TXUMA1
✅ Drop-In📋 Reference alternative (not in catalog)
BTS4140NHUMA1
✅ Drop-In✓ In Stock
$0.58 / Unit
View Datasheet →BTS452TATMA1
✅ Drop-In✓ In Stock
$1.12 / Unit
View Datasheet →BTS3028SDLATMA1
✅ Drop-In✓ In Stock
$1.05 / Unit
View Datasheet →ITS4140NHUMA1
✅ Drop-In✓ In Stock
$0.72 / Unit
View Datasheet →BSP752RXUMA2 Maximum Ratings & Electrical Characteristics
| Product Type | Smart High-Side Power Switch |
| Topology | High-side, 1:1 N-channel |
| Continuous Load Current | 1.3 A |
| Load Dump Protection | Yes (integrated) |
| Overload Protection | Yes (current limitation) |
| Short Circuit Protection | Yes |
| Thermal Shutdown | Yes (with auto-restart) |
| Reverse Battery Protection | Yes |
| Open-Load Detection (OFF state) | Yes (via external resistor) |
| Status Feedback Pin | Yes |
| Fast Demagnetization | Yes (for inductive loads) |
| Operating Temperature Range | -40C to +150C (junction) |
| Package | PG-DSO-8-6 (DSO-8-6) |
| Mounting Type | Surface Mount |
| Qualification | AEC-Q100 (automotive grade) |
| RoHS Status | Compliant |
BSP752RXUMA2 Pin Configuration
| Pin 1 | OUT — Output to load (drain of internal N-channel DMOS) |
| Pin 2 | Vbb — Supply voltage / battery feed (source of internal DMOS) |
| Pin 3 | GND — Ground reference |
| Pin 4 | IN — Logic input (CMOS-compatible control signal) |
| Pin 5 | ST — Status feedback (open-drain fault indicator) |
| Pin 6 | NC — Not connected (per datasheet) |
| Pin 7 | NC — Not connected (per datasheet) |
| Pin 8 | NC — Not connected (per datasheet) |
Typical Applications
BSP752RXUMA2 is suitable for 6 applications: Automotive Body Electronics, Interior Lighting and LED Drivers, Industrial 24 V Load Driving, Relay and Fuse Replacement, Power Distribution Modules, Battery Management Auxiliary Loads.
Automotive Body Electronics
The BSP752RXUMA2 is purpose-built for 12 V automotive body modules where it replaces electromechanical relays with a 1.3 A-rated solid-state high-side path. Its AEC-Q100 qualification and -40C to +150C junction rating cover door-lock actuators, seat-adjustment motors, mirror-folding drives, and trunk-release solenoids, while integrated load-dump protection absorbs the 40 V transient seen during alternator load-dump events without external TVS components.
Recommended
Interior Lighting and LED Drivers
Driving interior LED strings, dome lights, and ambient lighting strips is a strong fit for the BSP752RXUMA2 because its 1.3 A continuous rating covers most single-channel LED loads and its OFF-state open-load detection via external resistor identifies burned-out strings. The integrated fast demagnetization handles the wiring inductance of long cable harnesses without external flyback diodes, simplifying PCB layout for ceiling and door-mounted lighting modules.
Recommended
Industrial 24 V Load Driving
Beyond automotive, the BSP752RXUMA2 fits 24 V industrial PLC digital outputs, solenoid valves, and small DC motor control where its reverse-battery, overvoltage, and thermal protections provide robustness against industrial supply disturbances. The exposed thermal pad of the PG-DSO-8-6 package supports continuous 1.3 A operation when mounted on adequate copper pour, while the status feedback pin interfaces directly to a PLC logic input for fault reporting.
Recommended
Relay and Fuse Replacement
The BSP752RXUMA2 directly replaces automotive relays and fused MOSFET high-side paths by integrating the FET, current limiting, thermal protection, and diagnostic feedback into one IC. This consolidation removes the need for an external shunt for current sense, a fuse holder, and a TVS diode for load-dump, reducing both BOM count and PCB area while adding software-readable fault diagnostics that mechanical fuses cannot provide.
Recommended
Power Distribution Modules
In distributed power modules and zonal architectures, the BSP752RXUMA2 provides a per-channel protected output with diagnostic feedback to the central body controller. Multiple BSP752RXUMA2 channels can be paralleled across different loads (motors, lights, sensors) with each channel reporting independent fault status through its ST pin, enabling per-load fault isolation and selective shutdown in fault conditions without affecting other zones.
Recommended
Battery Management Auxiliary Loads
Auxiliary battery management functions such as battery isolation relays, pre-charge circuits, and wake-up load switching benefit from the BSP752RXUMA2's reverse-battery protection and low quiescent current in the OFF state. The integrated protections allow direct connection to the 12 V battery rail without additional protection circuitry, while the open-load detection confirms cable harness integrity during system self-test routines.
Recommended
Recommended Products Summary
Engineering reference data for BSP752RXUMA2 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | BSP752TXUMA1 | BTS4140NHUMA1 | BTS452TATMA1 | BTS3028SDLATMA1 | ITS4140NHUMA1 |
|---|---|---|---|---|---|---|
| Package | PG-DSO-8-6 | PG-DSO-8-6 - same | PG-DSO-8-6 - same | PG-DSO-8-6 - same | PG-DSO-8-6 - same | PG-DSO-8-6 - same |
| Brand | Infineon | Infineon | Infineon | Infineon | Infineon | Infineon |
| Topology | High-side 1:1 N-channel | High-side 1:1 N-channel (same) | High-side 1:1 N-channel | High-side 1:1 N-channel | High-side 1:1 N-channel | High-side 1:1 N-channel |
| Load Dump Protection | Yes (integrated) | Yes (integrated) | Yes | Yes | Yes | Yes (industrial PROFET family) |
| Thermal Shutdown | Yes (with auto-restart) | Yes (with auto-restart) | Yes | Yes | Yes | Yes |
| Reverse Battery Protection | Yes | Yes | Yes | Yes | Yes | Yes |
| AEC-Q100 Qualified | Yes | Yes | Yes | Yes | Yes | Industrial grade (non-automotive) |
| Operating Temperature (junction) | -40C to +150C | -40C to +150C | -40C to +150C | -40C to +150C | -40C to +150C | Industrial range (typically -40C to +125C) |
Key Differentiators
- Integrated OFF-state open-load detection through external resistor (vs BSP752TXUMA1)
- Footprint-compatible scalability within Infineon miniPROFET family (vs Discrete MOSFET + fuse + relay design)
- All-in-one protection integration (vs Discrete high-side MOSFET circuit)
Design Notes
Estimated: at Vbb=14 V and 1.3 A continuous load with RON of 100 milliohm typical, steady-state conduction dissipation is roughly P = I^2 * RON = 1.3^2 * 0.1 = 0.17 W. With the PG-DSO-8-6 thermal pad soldered to a 1 square inch copper pour on a 1 oz outer layer, theta_JA is typically around 50 C/W, yielding a junction-temperature rise of approximately 8.5C above ambient - well within the 150C limit. Increase copper area or use inner-layer copper planes if multiple BSP752RXUMA2 devices are clustered.
Solder the PG-DSO-8-6 exposed thermal pad to a continuous copper pour on the top layer, with thermal vias to inner ground planes for optimal heat spreading. Place input supply decoupling (typically 100 nF ceramic + 10 uF bulk) as close to the Vbb pin as possible to absorb fast transient currents during switching. Keep the high-current OUT trace short and wide to minimize parasitic inductance that could interact with the device's fast demagnetization clamp.
Do not exceed the datasheet's repetitive avalanche energy rating when driving inductive loads - even with integrated demagnetization, very high inductance (e.g., large solenoids) can exceed single-pulse avalanche limits. Use the status pin's open-drain pull-up to the logic supply voltage specified in the datasheet; a too-weak pull-up causes indeterminate fault readings at temperature. For open-load detection, the external pull-up resistor value must stay within the datasheet-specified range to avoid masking real open-load events.
Compliance Information
RoHS3 compliant per distributor listings (ics-100.com). AEC-Q100 qualified for automotive use. Halogen-free status not explicitly listed in verified data - marked unknown.
