Infineon BTS5241G: High-Side Power Switch for Automotive Applications

The Infineon BTS5241G is a state-of-the-art high-side power switch engineered specifically for the rigorous demands of automotive applications. As part of Infineon’s PROFET™ (PROtected FET) family of smart power switches, this device integrates advanced protection features, diagnostic capabilities, and robust performance into a compact package, making it an ideal solution for controlling a wide range of resistive, inductive, and capacitive loads.

Designed to handle high-current loads up to 21 A, the BTS5241G is commonly used in automotive systems to drive actuators, motors, heaters, and lamps. Its integrated protective functions—such as overload protection, short-circuit protection, over-temperature shutdown, and over-voltage clamp—ensure reliable operation under harsh conditions, including voltage spikes and extreme temperatures. Additionally, the device offers precise diagnostic feedback including current sense and status flag signals, which enable real-time monitoring and enhanced system diagnostics for improved safety and maintenance.

A key advantage of the BTS5241G is its very low standby current and efficient energy management, which are critical for modern vehicles aiming to reduce overall power consumption. Its compatibility with microcontroller interfaces allows for straightforward integration into electronic control units (ECUs), supporting applications in body control modules, power seat controllers, and lighting systems.

Built using Infineon’s proven SMIFET technology, this power switch combines low on-state resistance with high energy endurance, contributing to reduced heat dissipation and improved system efficiency. The device is also designed to meet stringent automotive quality standards, including AEC-Q100, ensuring long-term reliability.

ICGOOODFIND:

The Infineon BTS5241G stands out as a highly integrated and protected high-side switch, delivering power, intelligence, and resilience for next-generation automotive electronic systems.

Keywords:

High-Side Power Switch, Automotive Applications, Overload Protection, Diagnostic Feedback, Low Standby Current