Infineon BTS441TGATMA1 High-Current PROFET™ Smart High-Side Power Switch

The Infineon BTS441TGATMA1 is a robust and highly integrated PROFET™ (Protected FET) high-side power switch designed for demanding automotive and industrial applications. Engineered to handle high-current loads up to 44A, this device combines power switching, protection, and diagnostic functions in a single package, offering designers a reliable and space-efficient solution for controlling heavy resistive or inductive loads such as motors, heaters, and lamps.

A key strength of the BTS441TGATMA1 lies in its advanced protection features. It incorporates multiple safeguards including protection against over-load, short-circuit, over-temperature, and over-voltage conditions. Its sophisticated current limiting mechanism ensures safe operation during fault events, dramatically enhancing system reliability. Furthermore, its reverse battery protection (up to -40V) and over-voltage clamp are critical for harsh automotive environments where electrical transients are common.

The device provides crucial diagnostic feedback to the microcontroller, such as status reports on open-load detection, over-temperature, and short-circuit conditions. This intelligence allows for predictive maintenance and swift system responses to failures, which is essential for safety-critical applications.

Housed in a TO-252 (DPAK) package, the switch is optimized for efficient thermal performance and is capable of operating within a wide temperature range from -40°C to 150°C. Its very low standby current makes it an excellent choice for 12V or 24V battery-powered systems where quiescent power consumption is a key concern.

ICGOOODFIND: The Infineon BTS441TGATMA1 PROFET™ stands out as a superior smart high-side switch, delivering robust power control, comprehensive embedded protection, and detailed diagnostic capabilities in a compact form factor, making it an ideal choice for improving the reliability and intelligence of high-current automotive and industrial designs.

Keywords:

High-Current Switch

PROFET™

Over-Temperature Protection

Diagnostic Feedback

Automotive Grade