Infineon BTS441RGATMA1 High-Current PROFET™ Smart High-Side Power Switch

The Infineon BTS441RGATMA1 is a state-of-the-art High-Current PROFET™ Smart High-Side Power Switch designed to meet the rigorous demands of modern automotive and industrial applications. This highly integrated power switch is engineered to deliver robust performance and exceptional reliability in controlling high-current loads, making it an ideal solution for systems requiring precise and protected power management.

A key feature of the BTS441RGATMA1 is its ability to handle continuous currents up to 33A, supported by a very low typical on-state resistance (RDS(on)) that minimizes power dissipation and improves overall system efficiency. Its PROFET™ (PROtected FET) technology incorporates a comprehensive suite of advanced diagnostic and protection functions. These include overload protection, short-circuit protection, over-temperature shutdown, and over-voltage protection (such as load-dump resilience), ensuring the device and the connected load operate safely under fault conditions. Furthermore, the device offers precise current sense feedback with a proportional IS pin, enabling real-time load current monitoring without the need for external shunt resistors—this is critical for implementing predictive maintenance and fault detection strategies.

Housed in a TO-252 (DPAK) surface-mount package, the switch is optimized for automotive environments, complying with the stringent AEC-Q100 qualification standards. It is commonly used to drive a variety of resistive, inductive, and capacitive loads such as heating elements, motors, and power solenoids. The device is controlled via a simple logic-level input compatible with microcontrollers, simplifying interface design.

In summary, the Infineon BTS441RGATMA1 PROFET™ offers a powerful, protected, and intelligent switching solution that enhances system durability while reducing design complexity and board space.

ICGOODFIND: A highly integrated, protected, and intelligent high-side switch ideal for demanding automotive and industrial high-current applications.

Keywords:

PROFET™

High-Current Switch

Over-Temperature Protection

Diagnostic Feedback

AEC-Q100