Infineon TLE72422GXUMA2: 16-Channel Low-Side Switch for Automotive Applications

The increasing complexity of automotive electronic systems demands highly integrated, robust, and intelligent power management solutions. The Infineon TLE72422GXUMA2 stands out as a premier 16-channel low-side switch specifically engineered to meet the stringent requirements of modern vehicle architectures. This device is designed to drive a wide array of resistive, capacitive, and inductive loads, such as valves, relays, solenoids, and lamps, making it a cornerstone for body control modules, interior and exterior lighting systems, and other power distribution applications.

A key strength of the TLE72422GXUMA2 lies in its high level of integration. By consolidating 16 independent channels into a single compact package, it significantly reduces the component count on the board. This not only saves valuable space but also simplifies design complexity, enhances reliability, and lowers the overall system cost. Each channel features a low RDS(on) of just 0.5 Ω, ensuring high efficiency and minimal power dissipation during operation, which is critical for thermal management in the harsh under-hood and cabin environments.

The device is built for the rigorous conditions of the automotive world. It features a wide operating voltage range from 5.5 V to 28 V, with exceptional robustness against load-dump and transients up to 40 V. Each channel is protected by an internal clamp diode for inductive load switching and includes comprehensive diagnostic capabilities. The SPI interface allows the microcontroller to monitor the status of each channel, reporting crucial information such as open-load, overtemperature, and short-to-ground conditions. This advanced diagnostic functionality is vital for functional safety, enabling the system to implement preventative measures and meet standards like ISO 26262.

Furthermore, the TLE72422GXUMA2 incorporates multiple protection mechanisms. These include overcurrent limitation (OL), overtemperature shutdown (TSD) with automatic restart, and ground loss protection. Its AEC-Q100 qualification guarantees its performance and reliability for automotive applications, providing designers with the confidence needed for safety-critical systems.

ICGOOODFIND: The Infineon TLE72422GXUMA2 is an exceptionally integrated and robust 16-channel low-side switch that offers superior power handling, comprehensive diagnostic features, and full automotive qualification. It is an optimal solution for simplifying design, enhancing system reliability, and reducing the total cost of ownership in a wide range of automotive body electronics applications.

Keywords: Low-Side Switch, Automotive Grade, Diagnostic Features, High Integration, AEC-Q100.