Infineon BSP752TXUMA1: High-Current PROFET™ Smart High-Side Switch for Automotive and Industrial Applications

The Infineon BSP752TXUMA1 is a highly integrated, protected high-side switch from Infineon’s PROFET™ (Protected FET) family, engineered to deliver robust performance in demanding automotive and industrial environments. This power switch combines a vertical N-channel power MOSFET with advanced protection and diagnostic features, making it an ideal solution for driving high-current resistive or inductive loads such as motors, valves, heaters, and lamps.

A key strength of the BSP752TXUMA1 is its ability to handle high output currents of up to 37 A continuously, with an operating voltage range from 5.5 V to 40 V. This makes it perfectly suited for 12 V and 24 V battery-fed systems common in automotive applications, including body control modules, powertrain systems, and industrial automation equipment. The device is housed in a TO-263-7 (D2PAK) package, which offers an excellent thermal performance-to-footprint ratio, crucial for dissipating heat under high-load conditions.

The "Smart" in this PROFET™ switch refers to its comprehensive suite of integrated protection and diagnostic functionalities. It features advanced over-current protection with active current limiting, which safeguards the device and the load during short-circuit events. Additional protections include over-voltage clamp, reverse battery protection, and over-temperature shutdown with automatic restart, ensuring system reliability and preventing catastrophic failures. The device also provides precise load current feedback via an analog diagnostic output (IS pin), enabling real-time monitoring and control by the host microcontroller. Furthermore, its open-drain status output (ST) signals fault conditions such as overtemperature or short circuits, simplifying system diagnostics.

Designed for AEC-Q100 qualification, the BSP752TXUMA1 meets the stringent quality and reliability standards required for automotive electronics. Its very low standby current and optimized electromagnetic compatibility (EMC) performance further enhance its suitability for noise-sensitive environments. The device is also green product (RoHS compliant) and halogen-free, aligning with modern environmental regulations.

ICGOOODFIND: The Infineon BSP752TXUMA1 PROFET™ smart high-side switch stands out as a superior solution for high-current driving tasks. Its robust integration of a power MOSFET with extensive protective features and precise diagnostics significantly reduces system complexity, improves reliability, and shortens development time for designers in the automotive and industrial sectors.

Keywords: High-Current Switch, PROFET™, Automotive Grade, Diagnostic Features, Over-Current Protection.