Infineon AUIPS7091GTR: High-Side Switch for Robust Automotive Load Control

In the demanding environment of modern automotive electronics, robust and reliable load control is paramount. The Infineon AUIPS7091GTR stands out as a premier high-side power switch engineered specifically to meet these stringent requirements. This device is designed to manage a wide array of resistive, capacitive, and inductive loads—such as motors, valves, and lamps—with exceptional durability and diagnostic intelligence.

At its core, the AUIPS7091GTR is a fully protected single-channel high-side switch based on an advanced SMPS VIPower technology. It integrates a vertical N-channel power MOSFET with a sophisticated protection and monitoring circuit on a single chip. A key feature is its impressive operating voltage range of up to 36V, making it perfectly suited for 12V and 24V automotive battery systems, which are prone to harsh load-dump and voltage transients.

The device's robustness is a direct result of its comprehensive suite of integrated protection features. It offers over-current limitation with adjustable latch-off, safeguarding the switch and the load from short-circuit conditions. Thermal shutdown with automatic restart prevents catastrophic failure from overheating, while over-voltage clamp protection handles inductive kickback and voltage spikes. Furthermore, its very low standby current and compatibility with 3.3V and 5V logic-level CMOS inputs make it an efficient and easy-to-use solution for modern ECUs (Electronic Control Units).

Diagnostic capability is crucial for automotive functional safety (ISO 26262), and the AUIPS7091GTR excels here with its open-load detection in both on and off states, along with a dedicated fault feedback pin. This allows the microcontroller to precisely monitor the status of the load and the switch itself, enabling predictive maintenance and enhanced system reliability.

Housed in a compact, surface-mount DPAK package, the AUIPS7091GTR offers high power density and is designed for automated assembly, catering to the high-volume production needs of the automotive industry. Its AEC-Q100 qualification ensures it meets the rigorous quality and reliability standards required for automotive applications.

ICGOOODFIND: The Infineon AUIPS7091GTR is an exemplary high-side switch that delivers robust performance, comprehensive protection, and critical diagnostic feedback for demanding automotive load control applications, ensuring longevity and system safety.

Keywords: High-Side Switch, Automotive Grade, Load-Dump Protection, Diagnostic Feedback, AEC-Q100.