Infineon BTS7040-2EPA High-Current PROFET™ Smart Switch for Robust Automotive Applications

The increasing complexity of automotive electrical systems demands highly reliable, intelligent, and robust switching solutions. Addressing this need, the Infineon BTS7040-2EPA stands out as a premier High-Current PROFET™ (Protected FET) Smart Switch, engineered specifically for the most demanding automotive environments.

This device integrates two independent high-side switches with a common source, each capable of handling continuous currents up to 28 A per channel. Its primary role is to drive a wide array of high-current loads—such as LED lighting systems, DC motors, and heaters—with exceptional precision and protection. A key to its robustness is the advanced diagnostic and protection features embedded within the chip. These include protection against overload, short-circuit, over-temperature, and electrostatic discharge (ESD), ensuring operational integrity and longevity even under harsh conditions.

Beyond protection, the BTS7040-2EPA offers sophisticated diagnostic feedback via a multiplexed current sense (IS) pin. This allows the microcontroller to monitor the status of each channel, detecting faults like open loads, short to ground, or overtemperature. This level of intelligence is critical for functional safety and is instrumental in supporting systems aiming for compliance with standards like ISO 26262.

Housed in a compact, surface-mountable PG-TO263-7-43 (DPAK-7) package, the device is optimized for space-constrained applications. Its very low standby current makes it ideal for always-on systems, a common requirement in modern vehicles. Furthermore, its AEC-Q100 qualification guarantees its performance and reliability for automotive use, providing engineers with the confidence to deploy it in safety-critical modules like body control modules (BCMs), power seat modules, and advanced driver-assistance systems (ADAS).

ICGOOODFIND: The Infineon BTS7040-2EPA PROFET™ is a benchmark in automotive smart switching, combining high-current handling, comprehensive integrated protection, and detailed diagnostic capabilities in a single robust package, making it a top-tier solution for next-generation vehicle design.

Keywords:

1. PROFET™ Smart Switch

2. High-Current Handling

3. Advanced Diagnostics

4. Automotive Robustness

5. Integrated Protection