AUIPS6031RTRL: A High-Side Intelligent Power Switch from Infineon

Infineon Technologies' AUIPS6031RTRL represents a significant advancement in the field of intelligent power switching for automotive and industrial applications. As a high-side switch, it is engineered to provide robust, efficient, and protected control of high-current loads such as motors, solenoids, and lamps from a simple logic-level input.

The core of the AUIPS6031RTRL's intelligence lies in its integrated protection and diagnostic features. These are critical for ensuring system reliability in harsh electrical environments. Key protections include over-current limitation with active current clamping, which safeguards the switch and the load during short-circuit events. Additionally, it features over-temperature shutdown that disables the output until the junction cools down, and over-voltage protection (including load-dump resilience), which is paramount in automotive systems. An open-drain status flag provides valuable diagnostic feedback to the microcontroller, indicating fault conditions such as over-current, over-temperature, or an open load.

Constructed using Infineon's proprietary SMPS technology, the device offers a very low typical on-state resistance (RDS(on)) of just 3.5 mΩ. This high efficiency minimizes power losses and heat generation, allowing for higher power handling in a compact package. The device is designed for a wide operating voltage range, typically from 5.5V to 36V, making it suitable for 12V and 24V battery systems. Its AEC-Q100 qualification ensures it meets the stringent reliability standards required for automotive electronics.

Typical applications are extensive, ranging from automotive body electronics (e.g., seat heaters, window lifters, and sunroof controls) to industrial automation systems where robust and reliable switching is non-negotiable. The device is offered in a compact, surface-mount TO-263 (D2PAK) package, facilitating efficient PCB design and heat dissipation.

ICGOOODFIND: The Infineon AUIPS6031RTRL is a highly integrated and robust solution that simplifies design, enhances system safety, and improves overall reliability for DC load switching, making it an excellent choice for demanding applications.

Keywords: Intelligent Power Switch, High-Side Switch, Over-Current Protection, AEC-Q100, Low RDS(on)