Infineon BTS737S2: High-Current PROFET™ Smart Switch for Automotive Applications

The increasing complexity of automotive electrical systems demands robust, intelligent, and highly reliable switching solutions. Addressing this need, the Infineon BTS737S2 stands out as a high-performance PROFET™ (Protected MOSFET) smart high-side power switch engineered specifically for the rigorous demands of the automotive environment. This device is designed to drive a wide range of high-current loads—from DC motors and heaters to LEDs—with exceptional intelligence and protection.

A key feature of the BTS737S2 is its impressive current handling capability of up to 43A, making it suitable for a broad spectrum of high-power applications. This high-current capacity is managed through a low-ohmic N-channel power MOSFET, which ensures minimal power dissipation and high efficiency, contributing to improved fuel economy and reduced thermal stress.

Beyond raw power, the "smart" aspect of the PROFET™ technology is what truly sets it apart. The BTS737S2 integrates a comprehensive suite of advanced diagnostic and protection functions directly onto the chip. These include protection against overload, short-circuit to ground or battery, and overtemperature conditions. Furthermore, it features load current feedback, providing the microcontroller with a proportional current sense signal for real-time monitoring and diagnostics. This allows for predictive maintenance and system control, enhancing overall vehicle safety and reliability.

The device is also characterized by its very low standby current, a critical parameter for modern vehicles where minimizing battery drain during key-off periods is essential. Its robust design ensures high immunity to electrostatic discharge (ESD) and load-dump pulses, common challenges in the automotive electrical environment. Packaged in a compact and robust PG-TO263-7-11 (DPAK 7pin) package, it offers excellent thermal performance while saving valuable board space.

In summary, the Infineon BTS737S2 PROFET™ is a cornerstone component for designing efficient, safe, and intelligent automotive body and convenience modules.

ICGOODFIND: The Infineon BTS737S2 PROFET™ is a robust, high-current smart switch that combines high power density with integrated protection features and detailed diagnostic feedback, making it an ideal and reliable solution for driving demanding automotive loads.

Keywords:

1. PROFET™ Smart Switch

2. High-Current (43A)

3. Integrated Protection

4. Diagnostic Feedback

5. Automotive-Grade