SI8275GB-IS1R

Isolators - Gate Drivers Overview

The SI8275GB-IS1R is a dual-channel, galvanically isolated gate driver from Skyworks Solutions. It features radio frequency coupling technology with a 2500 Vrms isolation voltage and high common-mode transient immunity of 200 kV/µs. The device operates within a temperature range of -40°C to +125°C and utilizes a 14-QFN (5x5) package. Key electrical parameters include a maximum propagation delay of 75 ns, typical rise time of 10.5 ns, and fall time of 13.3 ns. It supports output supply voltages from 4.2 V to 30 V and delivers peak output currents of up to 4 A.

Isolators - Gate Drivers Feature Summary

• High common-mode transient immunity for robust noise rejection
• Galvanic isolation via radio frequency coupling technology
• Automotive-grade reliability with low latency and skew

Isolators - Gate Drivers Applications

• Motor control systems
• Industrial power inverters
• Solar micro-inverters

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix IS1R against official Skyworks documentation to confirm the tape-and-reel packaging configuration and automotive qualification status. Ensure the 14-QFN footprint matches the target PCB design. Cross-reference the datasheet for any recent updates regarding operating conditions or recommended soldering profiles to guarantee component integrity during assembly.

Isolators - Gate Drivers Selection Notes

Select this component when high-speed switching with minimal channel-to-channel skew is required in noisy environments. The dual-channel architecture simplifies designs for half-bridge and full-bridge topologies. Consider the 2500 Vrms isolation barrier for safety-critical applications. Evaluate the 4 A peak drive capability against the target MOSFET or IGBT gate charge requirements to ensure adequate switching performance.

Isolators - Gate Drivers Part Context

This part belongs to the Si8275 family of isolated gate drivers, which are designed for demanding industrial and automotive power conversion applications. The series emphasizes high reliability and fast response times. The GB variant specifically denotes the 14-QFN package form factor, distinguishing it from SOIC-based options within the same functional family.

Isolators - Gate Drivers Replacement Considerations

Consult official Skyworks substitution guides for verified alternatives. Generic replacements may not match the specific RF coupling characteristics or AEC-Q100 automotive qualification standards required for this application.