Infineon BTS410G2: A High-Performance Smart Low-Side Power Switch

In the realm of power electronics, efficient and reliable switching of electrical loads is a fundamental requirement across industries such as automotive, industrial automation, and consumer electronics. The Infineon BTS410G2 stands out as a highly integrated, smart low-side power switch designed to meet these demanding applications with superior performance and robust protection features.

This device is part of Infineon’s proven PROFET™ (Protected MOSFET) family, which combines a vertical power MOSFET with intelligent control and monitoring circuitry in a single package. The BTS410G2 is engineered to drive resistive, inductive, and capacitive loads with currents up to several amperes, making it ideal for controlling lamps, motors, solenoids, and heaters.

One of the key strengths of the BTS410G2 is its high level of integration. By incorporating the power switch, drive circuitry, and protection functions into one compact SO-8 package, it significantly reduces board space and simplifies design compared to discrete solutions. This integration not only cuts system cost but also enhances reliability by minimizing external component count.

Advanced protection features are central to its “smart” functionality. The device includes overload protection, short-circuit protection, and overtemperature shutdown, all of which are crucial for preventing damage under fault conditions. Additionally, it offers overvoltage protection (including load-dump resilience in automotive environments) and reverse battery protection, ensuring safe operation in harsh electrical conditions.

The BTS410G2 also provides diagnostic feedback to the microcontroller via a status output pin. This feature allows real-time monitoring of fault conditions such as overtemperature or short circuits, enabling predictive maintenance and swift system response. Its very low standby current makes it suitable for battery-powered applications where energy efficiency is critical.

With a low on-state resistance (RDS(on)), the switch minimizes conduction losses, improving overall system efficiency and reducing heat generation. The device operates over a wide voltage range and is designed to meet stringent automotive quality standards, ensuring durability and long-term performance even in demanding environments.

ICGOOODFIND: The Infineon BTS410G2 is a highly efficient and robust smart low-side switch that integrates power, protection, and diagnostics in a compact form factor. It offers designers a reliable, space-saving solution for load switching with enhanced safety and monitoring capabilities.

Keywords:

Smart Power Switch, Low-Side Driver, Overcurrent Protection, Diagnostic Feedback, Integrated Power MOSFET