SI8281CC-ASR

Isolators - Gate Drivers Overview

The SI8281CC-ASR is an automotive-grade, current-output isolated gate driver designed for high-voltage SiC and IGBT switching applications. It features capacitive coupling isolation rated at 5000Vrms with a minimum common-mode transient immunity of 35kV/µs. The device provides a peak output current of 4A, with typical rise and fall times of 5.5ns and 8.5ns respectively. Propagation delays are maximized at 50ns, and pulse width distortion is limited to 5ns. It operates within a supply voltage range of 2.8V to 5.5V and supports junction temperatures from -40°C to 125°C in a 20-SOIC package.

Isolators - Gate Drivers Feature Summary

• Capacitive coupling technology enables galvanic isolation without magnetic core saturation limitations.
• Integrated dc/dc converter functionality supports compact system designs by eliminating external isolation power supplies.
• High common-mode transient immunity ensures reliable operation in electrically noisy environments.

Isolators - Gate Drivers Applications

• Automotive inverters and motor drives
• Isolated DC-DC converters
• Industrial motor control systems

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix 'ASR' against official Skyworks documentation to confirm reel packaging specifications and tape-and-reel dimensions. Ensure the component meets AEC-Q100 qualification requirements for your target automotive application. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and traceability before procurement.

Isolators - Gate Drivers Selection Notes

Select this component when high-speed switching of wide-bandgap devices like Silicon Carbide (SiC) is required. The 4A peak current capability suits medium-power applications. Consider the 20-SOIC footprint for board space constraints. Verify that the 5000Vrms isolation rating aligns with the system's safety standards and creepage distance requirements.

Isolators - Gate Drivers Part Context

This part belongs to the SI828x family of ISOdriver gate drivers from Skyworks Solutions. The family utilizes proprietary capacitive isolation technology to provide robust performance in harsh electromagnetic environments. The SI8281 variant specifically targets high-current outputs for driving power switches in industrial and automotive power conversion topologies.

Isolators - Gate Drivers Replacement Considerations

Official substitutes include SI8281CC-IS and SI8281CC-ISR. These variants share identical electrical characteristics but differ in packaging formats such as cut tape or Digi-Reel options. Verify pinout compatibility and thermal performance when transitioning between these specific part numbers.