Infineon BTS436L2GATMA1 Smart High-Side Power Switch: Features and Applications
The Infineon BTS436L2GATMA1 is a robust and highly integrated smart high-side power switch designed to meet the demanding requirements of modern automotive and industrial applications. As part of Infineon’s PROFET™ (Protected MOSFET) family of products, this device combines power switching, protection, and diagnostic capabilities in a single compact package, offering engineers a reliable and efficient solution for controlling high-current loads.
One of the standout features of the BTS436L2GATMA1 is its high current capability, supporting continuous currents up to 5.5 A with a very low typical on-state resistance (RDS(on)) of just 40 mΩ. This ensures minimal power dissipation and high energy efficiency, making it ideal for applications where thermal management is critical. The device operates over a wide voltage range from 5.5 V to 28 V, covering standard automotive battery conditions, including load-dump scenarios.
Protection and diagnostics are central to its “smart” functionality. The switch includes comprehensive safeguards such as overload protection, short-circuit protection, and overtemperature shutdown, which help prevent damage to both the switch and the connected load. Additionally, it features an open-drain status feedback pin that provides diagnostic information, including fault conditions like overcurrent or overtemperature, as well as normal operation indication. This enables real-time system monitoring and enhanced reliability.
The BTS436L2GATMA1 also incorporates reverse battery protection and is designed to withstand negative voltage transients, which are common in automotive environments. Its ESD robustness ensures durability in electrically noisy conditions. The device is housed in a PG-TO-263-7 package, which offers excellent thermal performance and facilitates easier PCB layout and heat sinking.
Applications of the BTS436L2GATMA1 are diverse, spanning various sectors. In the automotive industry, it is commonly used to drive resistive, inductive, or capacitive loads such as heating elements, LED lighting systems, and DC motors. It is also suitable for power distribution units and body control modules, where reliability and diagnostics are paramount. Beyond automotive, this power switch finds use in industrial automation systems, including solenoid and actuator control, as well as in consumer electronics and power management systems where robust and intelligent switching is required.
The Infineon BTS436L2GATMA1 exemplifies innovation in power switching, merging high performance with integrated protection and diagnostics. Its versatility across automotive and industrial fields makes it a preferred choice for designers seeking efficiency, safety, and compactness.
Keywords:
Smart High-Side Switch, Overcurrent Protection, Automotive Applications, Diagnostic Feedback, Power Management
