AUIRS2128S

Gate Driver Overview

The AUIRS2128S is an automotive-grade, single-channel high-side gate driver IC designed for driving IGBTs and MOSFETs in high-voltage applications. It features integrated over-current protection with a current sense input, allowing for direct monitoring of the power switch. The device operates with a supply voltage range of 10 V to 20 V and supports a maximum blocking voltage of 600 V. Key electrical parameters include a peak output source current of 0.29 A and a sink current of 0.6 A. Propagation delays are specified at 140 ns for both turn-on and turn-off states. The component is qualified to AEC-Q100 standards and functions within an operating temperature range of -40°C to +125°C.

Gate Driver Feature Summary

• Integrated over-current protection with dedicated current sense pin for real-time fault detection
• Automotive qualification compliant with AEC-Q100 reliability standards
• High-side topology with functional level-shift isolation for floating gate drive
• Inverting logic input configuration for simplified control interface

Gate Driver Applications

• Automotive motor control systems
• High-voltage power switching circuits
• Industrial inverter drives
• AC/DC and DC/DC converter topologies

Gate Driver Procurement Notes

Verify that the specific part number suffix matches the required package variant, as Infineon may offer different tape-and-reel or tube options. Confirm AEC-Q100 certification status if automotive compliance is mandatory for the end product. Ensure the current sense threshold requirements align with the external shunt resistor or sensor design. Check for any recent lifecycle notices or obsolescence warnings from the manufacturer before finalizing procurement plans.

Gate Driver Selection Notes

Select this component when a single-channel high-side driver with built-in current limiting is required. It is suitable for applications needing robust over-current protection without external complex sensing circuitry. Consider the 600 V blocking capability and the specific propagation delay characteristics for timing-sensitive designs. Ensure the PCB layout supports the SOIC-8 package thermal dissipation requirements given the 625 mW power dissipation rating.

Gate Driver Part Context

The AUIRS2128S belongs to the IRS212x series of high-voltage gate drivers from Infineon Technologies. It is part of the automotive-grade AUIRS family, which shares architectural similarities with industrial variants but meets stricter automotive reliability criteria. This driver complements other devices in the portfolio by providing integrated fault protection, distinguishing it from basic drivers that require external protection components.

Gate Driver Replacement Considerations

The AUIRS21271STR is a related automotive high-side driver with current sensing capabilities, though it differs in packaging (Reel/Cut Tape vs. Tube) and potentially specific electrical tolerances. Verify pin compatibility and parameter alignment before substitution.