AUIRS2181S

Gate Driver Overview

The AUIRS2181S is an automotive-qualified, high-voltage gate driver IC designed for driving IGBTs and N-channel MOSFETs in half-bridge configurations. It features independent high-side and low-side outputs with a maximum voltage rating of 600 V. The device operates on 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. Key timing parameters include a maximum turn-on delay of 160 ns and a maximum turn-off delay of 200 ns. Propagation delays reach up to 330 ns, with rise and fall times specified at 60 ns and 35 ns respectively. It is housed in an 8-SOIC package.

Gate Driver Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for reliability
• Integrated bootstrap functionality for floating high-side channel operation
• Independent control inputs for separate high-side and low-side switching

Gate Driver Applications

• Electric vehicle traction inverters
• Motor drive systems
• Industrial power supplies

Gate Driver Procurement Notes

Verify component authenticity through authorized channels due to the discontinued status of this specific part number. Confirm that the AEC-Q100 automotive grade requirement aligns with system specifications. Ensure proper handling procedures are followed given the moisture sensitivity classification. Cross-reference datasheet revisions to confirm compatibility with existing design constraints before procurement attempts.

Gate Driver Selection Notes

Select this component when automotive-grade reliability is mandatory for high-voltage applications. The 600 V rating supports standard industrial and EV bus voltages. Independent channel control allows flexible circuit topologies. Consider the 8-SOIC footprint for PCB layout constraints. Verify thermal dissipation capabilities within the specified operating temperature range during design validation.

Gate Driver Part Context

This part belongs to the AUIRS2181 family of isolated gate drivers from Infineon Technologies. It shares architectural similarities with the IRS2181S but includes additional automotive testing and qualification protocols. The 'AU' prefix denotes the automotive grade variant, distinguishing it from the standard industrial version while maintaining functional equivalence in core driver performance.

Gate Driver Replacement Considerations

AUIRS2181STR

Gate Driver FAQ

Is the AUIRS2181S suitable for bootstrap operation?

Yes, the datasheet specifies that the floating channel is designed for bootstrap operation.

What logic levels does the input accept?

The device accepts CMOS and LSTTL logic types for input signals.