Infineon BTS5030-2E: A High-Performance Smart High-Side Power Switch for Automotive Applications

The increasing complexity of automotive electronic systems demands robust, efficient, and intelligent power management solutions. Addressing this need, the Infineon BTS5030-2E stands out as a premier smart high-side power switch designed specifically for the rigorous environment of modern vehicles. This device integrates advanced protection, diagnostic features, and control functionalities into a single package, making it an ideal solution for driving a wide range of resistive, capacitive, and inductive loads.

Engineered for high-performance automotive applications, the BTS5030-2E is part of Infineon's proven PROFET™ (Protected MOSFET) family. It features a low on-state resistance (RDS(on)) of just 5.0 mΩ typical, which is a key factor in minimizing conduction losses and improving overall system efficiency. This low RDS(on) directly translates to reduced heat generation, allowing for higher current handling—up to 30 A continuous current—in a compact PG-TO263-7 package. This efficiency is critical for applications such as heating elements, power seats, window lifters, and various body control modules, where thermal management and space are at a premium.

A defining characteristic of the BTS5030-2E is its "smart" capabilities. It incorporates a comprehensive suite of embedded protection and diagnostic functions. These include protection against over-load, short-circuit, over-temperature, and over-voltage conditions. The device also provides precise current sense information via a dedicated IS pin, which delivers a proportional current output for real-time load monitoring. This enables the system microcontroller to accurately diagnose the status of the load and the switch itself, facilitating predictive maintenance and enhancing system reliability.

Furthermore, the device is designed to withstand the harsh electrical environment of an automobile. It offers excellent robustness against transients, such as load dump and inductive kickback, ensuring stable operation and longevity. Its compatibility with microcontrollers is seamless, thanks to the 3.3 V and 5 V logic-level compatible input,

ICGOOODFIND: The Infineon BTS5030-2E is a highly integrated and intelligent power switch that sets a high standard for automotive power management. Its exceptional combination of very low RDS(on), high current capability, and extensive diagnostic and protection features makes it a superior choice for designers aiming to enhance reliability, efficiency, and functionality in automotive electronic systems.

Keywords:

Smart High-Side Switch

Automotive Applications

Low RDS(on)

Diagnostic Features

Protection Functions