AUIRS21814STR

Gate Driver Overview

The AUIRS21814STR is an automotive-grade half-bridge gate driver manufactured by Infineon Technologies, designed for IGBT and N-channel MOSFET applications. It operates within a supply voltage range of 10 V to 20 V and supports high-side voltages up to 600 V. The device features independent high-side and low-side drivers with peak output currents of 1.9 A and 2.3 A. Key timing parameters include a maximum propagation delay of 330 ns, rise time of 60 ns, and fall time of 35 ns. It is housed in a 14-SOIC package and certified to AEC-Q100 standards for operation between -40°C and +125°C.

Gate Driver Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for reliability in vehicle environments.
• Integrated high-side and low-side drivers capable of controlling IGBTs and N-channel MOSFETs independently.
• Supports high-voltage switching with a maximum self-boot supply voltage rating of 600 V.

Gate Driver Applications

• Electric vehicle traction inverters
• On-board charger (OBC) systems
• DC-DC converter modules

Gate Driver Procurement Notes

Verify the specific suffix 'STR' corresponds to the reel packaging configuration required for your assembly line. Confirm that the AEC-Q100 certification status meets your project's automotive quality requirements. Ensure the SOIC-14 footprint matches your PCB design guidelines. Cross-reference the datasheet revision date to confirm compatibility with your system specifications before finalizing procurement orders.

Gate Driver Selection Notes

Select this component when designing circuits requiring isolated gate driving for high-voltage power switches in automotive contexts. The 1.9 A/2.3 A drive strength is suitable for medium-power IGBTs and MOSFETs. Consider the 14-pin SOIC package for space-constrained layouts compared to larger packages. Evaluate the 330 ns propagation delay against your switching frequency requirements to ensure adequate dead-time control.

Gate Driver Part Context

This part belongs to Infineon’s EiceDRIVER family of isolated gate drivers tailored for electric vehicle applications. It serves as a specialized solution for high-voltage power conversion stages where automotive durability and precise switching control are critical. The device integrates necessary protection features to safeguard connected power semiconductors during transient events.

Gate Driver Replacement Considerations

The IRS21814STRPBF is a non-automotive grade equivalent from the same manufacturer. Verify if the loss of AEC-Q100 certification is acceptable for your application. Check pinout compatibility and electrical parameter differences, such as the 220 ns max turn-off delay in the IRS variant versus 330 ns in the AUI version.

Gate Driver FAQ

What logic input types does the AUIRS21814STR support?

The device accepts CMOS and TTL logic inputs for controlling the high-side and low-side drivers.

Is the AUIRS21814STR available in a tube or reel package?

The 'STR' suffix indicates the component is supplied in a reel packaging format.