Infineon BTS50055-1TMAATMA1: High-Current Smart Switch for Automotive and Industrial Applications

The demand for robust, intelligent power management solutions continues to grow across the automotive and industrial sectors. Addressing this need, Infineon Technologies introduces the BTS50055-1TMAATMA1, a state-of-the-art, high-current smart switch designed to deliver superior performance, reliability, and diagnostic capabilities in demanding environments.

As a member of Infineon’s well-established PROFET™ (Protected MOSFET) family, this device is engineered to handle high-load currents up to 55A, making it an ideal solution for controlling heavy in-vehicle loads such as heating elements, motors, and power seats. Its robust construction ensures reliable operation in the harsh underhood environment, characterized by significant temperature fluctuations and high levels of electromagnetic interference (EMI).

A key strength of the BTS50055-1TMAATMA1 lies in its advanced diagnostic and protection features. The device incorporates a comprehensive suite of safeguards, including overload protection, short-circuit protection, and overtemperature shutdown. These features are critical for preventing catastrophic failures and enhancing system longevity. Furthermore, it provides precise current sense feedback through its IS (Sense) pin, enabling real-time load current monitoring. This allows system microcontrollers to perform diagnostics, detect fault conditions like open loads or ground shorts, and facilitate predictive maintenance strategies.

Packaged in a compact, surface-mount TOLL-8 (TO-leadedless) package, the switch offers an excellent power-to-size ratio, which is essential for modern, space-constrained electronic control units (ECUs). Its low standby current and high energy efficiency also contribute to reduced overall system power consumption, a vital factor for both electric vehicles and industrial automation equipment.

In industrial settings, the BTS50055-1TMAATMA1 proves equally valuable. It can be deployed to control actuators, solenoids, and industrial heaters, where its diagnostic capabilities ensure minimal downtime and safe operation. The device's ability to interface directly with a low-power microcontroller simplifies design and reduces the need for additional external components.

ICGOOODFIND: The Infineon BTS50055-1TMAATMA1 stands out as a highly integrated and intelligent power switch. Its exceptional combination of high-current handling, robust protective features, and precise diagnostic feedback makes it a top-tier choice for engineers designing next-generation automotive and industrial systems that demand reliability, safety, and efficiency.

Keywords: High-Current Switch, Diagnostic Features, Automotive Applications, Overload Protection, PROFET™