Infineon BTS113A Smart High-Side Power Switch: Features and Applications
The Infineon BTS113A is a state-of-the-art smart high-side power switch designed to deliver efficient and reliable power control in a wide range of automotive and industrial applications. As part of Infineon’s PROFET™ (Protected MOSFET) family of products, this device integrates advanced protection features, diagnostic capabilities, and a robust power stage into a compact package, making it an ideal solution for driving resistive, capacitive, and inductive loads.
One of the standout features of the BTS113A is its integrated protection functionality. The device includes safeguards against overload conditions, short circuits, and overtemperature, ensuring system durability and preventing catastrophic failures. Additionally, its reverse battery protection feature allows the switch to withstand negative voltage spikes, which is particularly valuable in automotive environments where such events are common.
The BTS113A also offers precise diagnostic feedback through its status output pin. This feature enables real-time monitoring of the load current, fault conditions, and switch status—empowering designers to build smarter and more responsive systems. The ability to detect open-load conditions in both on and off states further enhances system reliability and simplifies maintenance.
Thanks to its low standby current and high energy efficiency, the BTS113A is well-suited for energy-sensitive applications, including body control modules, power seat controllers, and HVAC systems in vehicles. Its ability to handle high inrush currents also makes it a reliable choice for driving lamps, motors, and solenoids.

In industrial contexts, this power switch can be used in PLCs (Programmable Logic Controllers), small motor drives, and power distribution systems. Its robust design and compatibility with microcontrollers make integration straightforward, reducing both development time and system cost.
ICGOOODFIND:
The Infineon BTS113A stands out as a highly integrated and protected high-side switch, offering a combination of diagnostic intelligence, thermal resilience, and ease of use. It is an excellent choice for developers seeking to enhance the performance and safety of DC load control systems.
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Keywords:
Smart High-Side Switch, Overcurrent Protection, Diagnostic Feedback, Automotive Applications, Reverse Battery Protection
