SI8261ACD-C-IMR

Isolators - Gate Drivers Overview

The SI8261ACD-C-IMR is a single-channel isolated gate driver from the Si826x series, designed as a digital CMOS drop-in replacement for optocoupler drivers. It features a SOIC-8 package and operates within a supply voltage range of 5 V to 30 V. The device provides a peak output current of 4 A and supports an isolation voltage of 5 kVrms. It is qualified under AEC-Q100 standards and functions reliably across a temperature range of -40 °C to +125 °C.

Isolators - Gate Drivers Feature Summary

• Provides superior common-mode transient immunity compared to traditional opto-drivers
• Offers robust performance and greater reliability for long-term applications
• Features a digital CMOS architecture compatible with standard opto-driver footprints

Isolators - Gate Drivers Applications

• Industrial drives and motor control systems
• Solar power inverters
• Switched-mode power supplies (SMPS)
• Uninterruptible power supplies (UPS)
• High-voltage medical equipment

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix 'IMR' against official Skyworks documentation to confirm tape-and-reel packaging and exact electrical characteristics. Ensure compatibility with existing PCB footprints intended for optocoupler replacements. Confirm AEC-Q100 qualification status if automotive application requirements are mandatory. Cross-reference datasheet revisions to ensure parameter consistency.

Isolators - Gate Drivers Selection Notes

Select this component when replacing legacy optocouplers in high-noise environments requiring enhanced common-mode transient immunity. The 4 A drive capability suits medium-power MOSFET or IGBT switching applications. Consider the SOIC-8 footprint for direct board space savings. Verify that the 5 kVrms isolation rating meets system safety requirements. Evaluate thermal performance within the specified operating temperature range.

Isolators - Gate Drivers Part Context

This part belongs to the Si826x family of isolated gate drivers, which utilize capacitive coupling technology instead of optical components. The family targets industrial and automotive markets demanding higher reliability than optocouplers. The SI8261 variant specifically offers single-channel operation with high peak current drive, distinguishing it from lower-current or dual-channel counterparts in the same series.

Isolators - Gate Drivers Replacement Considerations

Public confirmed substitute part numbers: SI8261BCD-C-IMR, SI8261BAD-C-IMR.