AUIRS21271STR

Gate Driver Overview

The AUIRS21271STR is an automotive-grade, single-channel high-side gate driver IC designed for IGBT and N-channel MOSFET applications. It operates with a supply voltage range of 9V to 20V and supports a bootstrap voltage up to 600V. The device provides peak output currents of 290mA (source) and 600mA (sink). Key timing parameters include typical rise and fall times of 80ns and 40ns, respectively. It features junction isolation and is qualified to AEC-Q100 standards, operating within a temperature range of -40°C to +150°C TJ in an 8-SOIC package.

Gate Driver Feature Summary

• Integrated overcurrent protection with fault reporting capabilities
• High-voltage floating channel supporting up to 600V bootstrap operation
• Automotive qualification compliant with AEC-Q100 standards
• Junction isolation for functional safety requirements

Gate Driver Applications

• Automotive motor control systems
• Industrial inverter drives
• High-side switching for power MOSFETs and IGBTs

Gate Driver Procurement Notes

Verify the specific suffix STR indicates tape-and-reel packaging when sourcing components. Confirm that the AEC-Q100 qualification status meets your project's reliability requirements. Ensure the 8-SOIC footprint matches your PCB layout constraints. Check for any obsolescence notices as the part status may be marked as not recommended for new designs in some regions.

Gate Driver Selection Notes

Select this component when a single-channel high-side driver with integrated current sensing and fault reporting is required. It is suitable for applications needing robust overcurrent protection without external circuitry. Consider the 600V rating for medium-voltage power stages. Verify compatibility with the control logic voltage levels, specifically the VIH threshold of 2.5V.

Gate Driver Part Context

This part belongs to the IRS2127x family of high-voltage gate drivers from Infineon Technologies. The 'AU' prefix denotes automotive grade qualification, distinguishing it from the standard industrial IRS21271S variant. It shares core electrical characteristics with the family but includes enhanced reliability testing and documentation for automotive deployment.

Gate Driver Replacement Considerations

The IRS21271SPBF is a non-automotive equivalent with similar electrical specifications but lacks AEC-Q100 qualification. The AUIRS21814S is a different topology and should not be used as a direct substitute without thorough validation.