Infineon BTS710L1: A High-Side Power Switch for Robust Automotive and Industrial Applications

The demand for highly reliable, efficient, and compact power switching solutions continues to grow across the automotive and industrial sectors. Addressing this need, Infineon Technologies introduces the BTS710L1, a state-of-the-art four-channel high-side power switch designed to deliver exceptional performance and protection in harsh operating environments.

This intelligent power device integrates four independent channels, each capable of handling a continuous current of up to 350 mA. A key advantage of its multi-channel design is significant space savings on the PCB, consolidating what would typically require four discrete components into a single, thermally enhanced DSOP-14 package. This integration is crucial for modern applications where board real estate is at a premium.

Robustness and system reliability are at the core of the BTS710L1's design philosophy. It is engineered to withstand the demanding conditions of automotive electronics, such as load-dump and cold-crank scenarios, as well as the voltage transients common in industrial automation. The device features a wide operating voltage range from 5.5 V to 40 V, providing ample headroom for 12 V and 24 V battery systems.

A comprehensive suite of diagnostic and protection features ensures safe operation and simplifies system design. Each channel is protected against overload, short-circuit, and overtemperature conditions. The sophisticated current sense capability offers a proportional (PSC® - Proportional Current Sense) output for precise load current monitoring, enabling smart fault management and predictive maintenance without the need for external shunt resistors. Furthermore, the device includes protection against ground loss and reverse battery situations with the help of an external diode.

The combination of its high electromagnetic compatibility (EMC) performance and low electromagnetic interference (EMI) makes it an ideal choice for applications that are sensitive to noise, such as body control modules (e.g., lighting, window lifters, seat heaters) and industrial PLCs driving solenoids, valves, and small motors.

ICGOOODFIND: The Infineon BTS710L1 stands out as a highly integrated and intelligent solution that empowers designers to build more compact, reliable, and feature-rich systems. Its multi-channel architecture, superior protective functions, and diagnostic intelligence make it a superior choice for streamlining design and enhancing durability in automotive and industrial power networks.

Keywords:

High-Side Power Switch

Automotive Applications

Multi-Channel Integration

Diagnostic and Protection Features

Proportional Current Sense (PSC®)