IR2128S

Gate Driver Overview

The IR2128S is a high-voltage, high-speed power MOSFET and IGBT driver manufactured by Infineon Technologies. It features proprietary HVIC and latch-immune CMOS technologies for ruggedized performance. The device provides a single high-side driver with an inverting input, housed in an 8-SOIC package. Key electrical parameters include a supply voltage range of 10 V to 20 V, output currents of 0.25 A source and 0.5 A sink, and a breakdown voltage rating of 600 V. Operating temperatures span from -40°C to +125°C, with rise and fall times of 80 ns and 40 ns respectively.

Gate Driver Feature Summary

• Integrates proprietary HVIC and latch-immune CMOS technologies for robust operation in high-noise environments.
• Provides a single-channel high-side gate drive capability suitable for driving power MOSFETs and IGBTs.
• Features functional level-shift isolation to interface low-voltage control logic with high-voltage power stages.

Gate Driver Applications

• Motor control systems requiring high-side switching
• Power factor correction (PFC) circuits
• DC-DC converter topologies

Gate Driver Procurement Notes

Verify the specific suffix designation, as the IR2128SPBF indicates a tube package while other variants may use reels or cut tape. Confirm RoHS compliance status through official documentation. Check the lifecycle status, as some sources indicate this component may be not recommended for new designs. Ensure the operating temperature range matches the application requirements before procurement.

Gate Driver Selection Notes

Select the IR2128S when a single high-side driver with 600V blocking capability is required. Consider the 0.25A source and 0.5A sink current limits for gate charge requirements. Compare against dual-channel alternatives like the IRS2181S if both high-side and low-side drivers are needed. Evaluate the SOIC-8 package constraints for thermal management and PCB layout space.

Gate Driver Part Context

The IR2128S belongs to the IR212x family of high-voltage gate drivers from Infineon. It is functionally related to the IR2127, which typically includes both high-side and low-side channels. This component serves as a bridge between low-voltage control signals and high-power switching devices, enabling efficient energy conversion in industrial and automotive applications.

Gate Driver Replacement Considerations

The IR2127S is a direct functional alternative within the same family, offering combined high-side and low-side capabilities. For dual-channel requirements, the IRS2181S provides higher output currents but occupies more pins. Verify pin compatibility and electrical specifications before substituting.