SI8275AB-AS1R

Isolators - Gate Drivers Overview

The SI8275AB-AS1R is a galvanically isolated gate driver from Skyworks Solutions, utilizing capacitive coupling technology for signal transmission. It features a dual driver configuration housed in an SOIC-16 surface-mount package. The device provides an insulation voltage of 2.5 kVrms and operates within a temperature range of -40°C to +125°C. Key electrical parameters include a maximum propagation delay of 75 ns, with rise and fall times of 16 ns and 18 ns respectively. Power dissipation is rated at 1.2 W.

Isolators - Gate Drivers Feature Summary

• Capacitive coupling technology ensures high common-mode transient immunity (CMTI) and reliable signal isolation.
• Dual driver configuration supports independent control of multiple switching elements within a single package.
• Integrated undervoltage lockout (UVLO) mechanism protects the system by preventing operation during insufficient supply conditions.

Isolators - Gate Drivers Applications

• Industrial motor drives requiring robust isolation
• Power supply systems needing high-speed switching control
• Inverter circuits in renewable energy applications

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix AS1R against official Skyworks documentation to confirm reel packaging and tape-and-reel specifications. Ensure compatibility with SOIC-16 footprint requirements and validate thermal management strategies for the 1.2 W power dissipation rating under intended operating conditions.

Isolators - Gate Drivers Selection Notes

Select this component when dual-channel isolation with high CMTI is required. The 2.5 kVrms isolation level suits applications demanding significant potential difference separation. Consider the 75 ns propagation delay for timing-sensitive designs and ensure the SOIC-16 package fits the PCB layout constraints.

Isolators - Gate Drivers Part Context

This part belongs to the Si827x series of isolated gate drivers, which are designed for automotive and industrial environments. The series leverages Skyworks' proprietary capacitive isolation technology to replace traditional magnetic isolators, offering improved reliability and smaller form factors for modern power electronics.

Isolators - Gate Drivers Replacement Considerations

Cross-reference with other Si8275 variants such as SI8275AB-IS1R or SI8275BBD-AS1R for pin-compatible alternatives. Verify that substitute parts match the dual driver configuration, SOIC-16 package, and 2.5 kVrms isolation rating before implementation.