BTS50055-1TMB: A High-Current PROFET™ Smart High-Side Switch for Automotive and Industrial Applications

In the demanding environments of automotive and industrial systems, robust and intelligent power management is paramount. The BTS50055-1TMB, a member of Infineon's PROFET™ (Protected MOSFET) family, stands out as a state-of-the-art smart high-side switch engineered to meet these rigorous challenges. This device integrates a low-ohmic N-channel power MOSFET with comprehensive protection and diagnostic features into a single, compact package, offering a superior solution for controlling heavy resistive or inductive loads.

A key strength of the BTS50055-1TMB is its impressive current handling capability, supporting up to 55A continuous current. This makes it ideally suited for a wide array of high-power applications. In the automotive sector, it is perfect for driving loads such as steering heaters, PTC heaters, and other high-current modules. Beyond the vehicle, it excels in industrial environments, managing motors, solenoids, and actuators with high reliability.

The "smart" functionality of this switch is what truly sets it apart. It provides a suite of embedded protective features that safeguard both the switch itself and the connected load from potential damage. These include protection against over-load, short-circuit, over-temperature, and over-voltage conditions. Furthermore, its advanced diagnostic capabilities offer precise current sensing (KILIS) and status feedback (open-load detection, fault indication) to the microcontroller, enabling predictive maintenance and enhanced system safety.

Housed in a TO-263-7 package, the BTS50055-1TMB offers excellent power dissipation while maintaining a relatively small footprint on the PCB. Its design prioritizes very low standby current, which is critical for automotive applications where energy efficiency is crucial. The combination of high performance, integrated intelligence, and robust construction ensures improved system longevity and reduced design complexity.

ICGOOODFIND: The BTS50055-1TMB is a premier high-current smart high-side switch that delivers exceptional power, advanced protection, and detailed diagnostics. It is an optimal choice for designers seeking to enhance the reliability, efficiency, and intelligence of their 12V or 24V automotive and industrial power systems.

Keywords: Smart High-Side Switch, High-Current (55A), PROFET™, Automotive Applications, Diagnostic Features.