AUIRS21814S

Gate Driver Overview

The AUIRS21814S is an automotive-grade, high-voltage half-bridge gate driver designed for N-channel MOSFETs and IGBTs. It features independent high-side and low-side outputs with a maximum bootstrap voltage of 600 V. The device operates within a supply voltage range of 10 V to 20 V and delivers peak output currents of 1.9 A (source) and 2.3 A (sink). Propagation delays are specified at 160 ns for turn-on and 200 ns for turn-off. It utilizes a 14-lead SOIC package and supports CMOS and LSTTL logic inputs.

Gate Driver Feature Summary

• Automotive qualification compliant
• Independent high-side and low-side channels
• SoftTurn-On capability
• Functional level shift isolation

Gate Driver Applications

• High-side and low-side power switching
• Motor control applications
• Industrial inverter circuits

Gate Driver Procurement Notes

Verify the specific suffix 'S' indicates the SOIC-14 package variant. Confirm automotive grade status against current Infineon documentation. Check lead-free and RoHS compliance requirements for your assembly process. Ensure ESD handling protocols are followed during storage and installation.

Gate Driver Selection Notes

Select this component when a 600 V rating is required for half-bridge topologies. The independent input configuration allows flexible control schemes. Consider the 14-lead SOIC footprint for PCB layout constraints. Verify that the 1.9 A source current meets the gate charge requirements of the target power devices.

Gate Driver Part Context

This part belongs to the IR2181(4)(S) family of high-voltage gate drivers. The 'AU' prefix denotes automotive qualification. It serves as a specialized interface between low-voltage logic controllers and high-power semiconductor switches, enabling efficient energy conversion in demanding environments.

Gate Driver Replacement Considerations

The IRS21814STRPBF is a listed substitute. Verify package compatibility and electrical parameter alignment before substitution.