Infineon BTS141TC High-Current Power Switch: Features and Applications

The Infineon BTS141TC is a versatile and robust high-current power switch designed for a wide range of automotive and industrial applications. As part of Infineon’s PROFET™ (Protected MOSFET) family of smart power switches, this device integrates advanced protection features, diagnostic capabilities, and high switching performance into a single package. Its ability to handle significant current loads while ensuring system safety makes it a preferred solution for controlling resistive, inductive, and capacitive loads.

One of the standout features of the BTS141TC is its high current handling capability, supporting continuous currents up to 17 A. This makes it suitable for driving demanding loads such as motors, heaters, and lamps. The device is built using n-channel vertical power MOSFET technology, which ensures low on-state resistance (RDS(on) typically 50 mΩ), leading to reduced conduction losses and improved energy efficiency.

A key advantage of the BTS141TC is its comprehensive suite of integrated protection functions. These include overcurrent protection, overtemperature shutdown, short-circuit protection, and overvoltage clamping (e.g., from load dump events). Additionally, the device offers reverse battery protection up to -18 V, safeguarding the system against accidental reverse polarity connection—a critical requirement in automotive environments.

The component also provides valuable diagnostic feedback via a status output pin, which signals fault conditions such as overtemperature or short-circuit events to the microcontroller. This enables real-time system monitoring and swift corrective actions, enhancing reliability and simplifying maintenance.

The BTS141TC is housed in a TO-252 (DPAK) surface-mount package, offering efficient thermal performance and ease of PCB assembly. Its wide operating voltage range (5.5 V to 28 V) covers standard automotive and industrial supply voltages.

Applications of the BTS141TC span across various domains:

- Automotive systems: driving lights, window lifters, seat controllers, and fuel pumps.

- Industrial automation: controlling solenoids, actuators, and small DC motors.

- Consumer and commercial electronics: power management in appliances, HVAC systems, and low-voltage power supplies.

ICGOOODFIND:

The Infineon BTS141TC stands out as a highly integrated, protected high-side switch that combines efficiency, durability, and intelligence. Its blend of high-current performance, robust protective features, and diagnostic support makes it an excellent choice for modern electronic systems requiring reliability and compact design.

Keywords:

High-Current Switch, Integrated Protection, Diagnostic Feedback, Automotive Applications, PROFET™