Infineon BTS70202EPAXUMA1: High-Current PROFET™ Smart Switch for Automotive Applications

The increasing complexity of automotive electrical systems demands robust, intelligent, and highly reliable power management solutions. The Infineon BTS70202EPAXUMA1 stands out as a premier high-current PROFET™ (Protected FET) smart switch engineered specifically to meet these stringent requirements. This device integrates a multitude of protection and diagnostic features into a single package, making it an ideal solution for driving heavy resistive or inductive loads in the harsh environment of modern vehicles.

At its core, the BTS70202-2EPA is a dual-channel, high-side switch based on advanced SMIF (Smart MOSFET) technology. Each channel can handle a maximum continuous current of up to 20 A, making it capable of powering a wide array of applications, from solenoids and valves to motors and heating elements. Its low on-state resistance (RDS(on)) ensures minimal power dissipation, leading to high efficiency and reduced thermal stress, which is critical for energy-conscious and thermally constrained automotive designs.

A key strength of this PROFET™ device is its comprehensive suite of integrated protection and diagnostic features. These include:

Overload and Short-Circuit Protection: The device autonomously protects itself and the load by limiting the output current in case of a fault.

Overtemperature Shutdown: A built-in temperature sensor shuts down the output if the junction temperature exceeds a safe threshold, reactivating automatically once it has cooled.

Overvoltage Protection (including load-dump): It is designed to withstand the extreme voltage transients typical in automotive environments.

Advanced Diagnostic Capabilities: It provides precise feedback to the microcontroller, including current sense proportional to the load current, status flags for open-load detection, and overtemperature warnings. This enables predictive maintenance and enhanced system control.

Housed in a compact, surface-mountable PG-TO263-7-43 package, the BTS70202-2EPA offers excellent power density. It is AEC-Q100 qualified, guaranteeing its performance and reliability for automotive applications. It is particularly suited for use in body control modules (BCMs), power distribution units, and various applications within the convenience and powertrain systems.

ICGOOODFIND: The Infineon BTS70202EPAXUMA1 is a high-performance, intelligent power switch that exemplifies the move towards smarter and more integrated automotive electronics. Its combination of high-current handling, robust integrated protection, and detailed diagnostic feedback makes it an exceptional choice for designers seeking to enhance the reliability, functionality, and efficiency of their next-generation automotive systems.

Keywords:

PROFET™ Smart Switch

Automotive Applications

High-Current Switch

Integrated Protection

Diagnostic Features