AUIRS2118STR

Gate Driver Overview

The AUIRS2118STR is an automotive-grade, single-channel high-side gate driver IC manufactured by Infineon Technologies. It operates with a supply voltage range of 10 V to 20 V and supports high-voltage loads up to 600 V via bootstrap functionality. The device features inverting logic inputs compatible with CMOS standards. Key electrical parameters include a peak output source current of 290 mA and a sink current of 600 mA. Propagation delays are specified at a maximum of 225 ns, with rise and fall times typically at 75 ns and 25 ns respectively. It functions within a junction temperature range of -40°C to 150°C and is housed in an 8-SOIC package.

Gate Driver Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for reliable operation in vehicle environments.
• High-voltage capability supporting floating drive for high-side N-channel power MOSFETs and IGBTs up to 600 V.
• Integrated bootstrap circuitry enables efficient high-side switching without external isolated power supplies.

Gate Driver Applications

• Automotive motor control systems requiring high-side switching.
• Industrial motor drives utilizing IGBT or MOSFET topologies.
• Power supply circuits necessitating isolated high-side gate driving.

Gate Driver Procurement Notes

Verify the specific suffix STR indicates tape-and-reel packaging configuration. Confirm AEC-Q100 certification status for your application's reliability requirements. Check datasheet revisions for any updates regarding thermal characteristics or pinout definitions. Ensure compatibility with your system's input logic voltage levels before integration.

Gate Driver Selection Notes

Select this component when an automotive-qualified, single-channel high-side driver is required. It is suitable for applications needing robust performance under high-voltage conditions. Consider the inverting input logic when designing control interfaces. Evaluate thermal management needs given the 625 mW power dissipation rating in the SOIC-8 package.

Gate Driver Part Context

This part belongs to the IRS211x series of high-voltage gate drivers from Infineon. The 'AU' prefix denotes automotive grade qualification, distinguishing it from standard industrial variants like the IR2118. It serves as a specialized solution for demanding automotive and industrial power electronics applications where reliability and high-voltage isolation are critical.

Gate Driver Replacement Considerations

The IR2118 is a non-automotive equivalent but lacks AEC-Q100 certification. Verify if automotive qualification is mandatory for your design. Other series members may offer different channel counts or voltage ratings.