Infineon BTS555-E3146HKSA1: A Robust Smart High-Side Power Switch for Modern Automotive and Industrial Applications

The Infineon BTS555-E3146HKSA1 is a highly integrated smart high-side power switch designed to meet the demanding requirements of automotive and industrial systems. Manufactured using Infineon’s proprietary SMART7 technology, this device combines a vertical power MOSFET with advanced protection and diagnostic features in a single compact package. With a continuous current capability of up to 5.5 A and a low on-state resistance, it ensures high efficiency and minimal power dissipation in switching applications.

One of the key strengths of the BTS555-E3146HKSA1 is its comprehensive suite of embedded protection functions. These include overcurrent protection, overtemperature shutdown, short-circuit clamping, and under-voltage lockout, all of which enhance system reliability and prevent catastrophic failures. Additionally, the device offers diagnostic feedback via a status pin, enabling real-time monitoring of load conditions and fault detection—a critical feature for safety-critical applications such as automotive body electronics, power distribution units, and motor control systems.

Housed in a robust TO-263-7 (D2PAK) package, the component is optimized for high power density and excellent thermal performance. Its ability to operate over a wide voltage range and its compatibility with microcontroller interfaces make it an ideal solution for modern electronic designs aiming for miniaturization, intelligence, and durability.

ICGOOODFIND:

The Infineon BTS555-E3146HKSA1 stands out as a highly reliable and feature-rich high-side switch, offering superior integration, robust protection mechanisms, and precise diagnostics—making it an excellent choice for next-generation automotive and industrial power management applications.

Keywords:

Smart High-Side Switch, SMART7 Technology, Automotive Electronics, Overcurrent Protection, Diagnostic Feedback