Infineon BTS7750G High-Current PROFET™ Power Switch for Automotive Applications

The increasing complexity of automotive electrical systems demands robust, intelligent, and highly reliable high-current switching solutions. Addressing this need, the Infineon BTS7750G PROFET™ (Protected FET) +2mΩ power switch stands out as a premier integrated circuit designed to drive harsh automotive loads with exceptional efficiency and protection.

As a high-side switch, the BTS7750G is engineered to control a wide array of resistive, capacitive, and inductive loads, such as heating elements, motors, and solenoids. Its core strength lies in its extremely low typical on-state resistance (R_DS(on)) of just 2.0 mΩ, which is a benchmark in the industry. This ultra-low resistance translates into minimal voltage drop and significantly reduced power dissipation, leading to superior energy efficiency and negating the need for large external heat sinks in many applications. This is paramount for reducing system size, weight, and cost while improving thermal performance.

Beyond raw power handling, the BTS7750G is a hallmark of smart protection and diagnostic capabilities. It incorporates a comprehensive suite of embedded safety features including protection against overload, short-circuit, over-temperature, and over-voltage conditions. Its advanced current sense feedback provides a proportional (KILIS) output signal, enabling precise load current monitoring for diagnostics and system control without the losses associated with external shunt resistors. Furthermore, the device offers protection against reverse battery and load-dump events, ensuring resilience in the demanding 12V automotive environment.

The device is also characterized by its exceptional electromagnetic compatibility (EMC) performance, crucial for maintaining the integrity of surrounding electronics. With a wide operating voltage range and compatibility with 3V and 5V microcontrollers, it offers seamless integration into modern automotive electronic control units (ECUs). Its AEC-Q100 qualification guarantees the quality and reliability required for mission-critical automotive applications, ensuring long-term performance under the hood.

ICGOOODFIND: The Infineon BTS7750G PROFET™ represents a significant leap in power switching technology, combining ultra-high current capability with intelligent integration. Its unparalleled 2mΩ R_DS(on), comprehensive diagnostic suite, and robust protective features make it an indispensable component for designing efficient, compact, and reliable next-generation automotive systems, from body control modules to advanced driver-assistance systems (ADAS).

Keywords: High-Current Switch, PROFET™, Automotive Grade, Load Diagnostics, Over-Temperature Protection.