Infineon BTS50055-1TMCATMA1: High-Current Smart Switch for Automotive and Industrial Applications

Modern automotive and industrial systems demand robust, intelligent power management solutions capable of handling high currents while ensuring operational safety and reliability. Addressing these needs, the Infineon BTS50055-1TMCATMA1 stands out as a high-performance smart high-side power switch, integrating advanced protection features, diagnostic capabilities, and efficient power handling in a compact package.

Engineered for high-current applications, this device supports a continuous current of up to 55A, making it suitable for demanding loads such as automotive actuators, industrial motors, solenoid valves, and heating elements. Its low typical on-state resistance (R_DS(on)) of just 0.55 mΩ minimizes power losses and reduces heat generation, enhancing overall system efficiency and thermal performance.

A key strength of the BTS50055-1TMCATMA1 is its comprehensive suite of integrated protection features. These include overcurrent protection, overtemperature shutdown, short-circuit clamping, and load current limitation, which collectively safeguard both the switch and the connected load from potential damage. Additionally, the device offers advanced diagnostic feedback through its status output pin, providing real-time information on fault conditions such as overtemperature or open-load scenarios. This enables proactive system maintenance and troubleshooting.

The device operates with a wide supply voltage range, compatible with standard automotive and industrial power systems, and features ESD protection and reverse battery protection, ensuring resilience in harsh electrical environments. Its green, RoHS-compliant PG-TO-263-7 package (also known as D2PAK) is designed for efficient thermal management, allowing effective heat dissipation even under high-load conditions.

Target applications span across automotive body electronics (e.g., seat controllers, window lift systems, and powertrain modules) and industrial automation systems (such as PLCs and motor drives), where reliability and diagnostics are critical.

ICGOODFIND: The Infineon BTS50055-1TMCATMA1 is a highly integrated smart switch solution that combines high current handling, robust protection, and precise diagnostics, making it an ideal choice for next-generation automotive and industrial power systems.

Keywords:

High-Current Switch, Automotive Applications, Industrial Automation, Integrated Protection, Diagnostic Feedback