SI8231AB-AS

Isolators - Gate Drivers Overview

The SI8231AB-AS is a dual-channel, galvanically isolated gate driver from the Si823x series by Skyworks Solutions. It features a 2.5 kVrms isolation rating and operates within a temperature range of -40°C to +125°C. The device provides high-side and low-side outputs with a maximum propagation delay of 45 ns and rise/fall times of 20 ns. It delivers an output current of 500 mA at an output voltage of 8 V, with a power dissipation of 1.2 W. Packaged in a 16-SOIC-Wide format, it supports TTL logic inputs and consumes 3.5 mA of operating supply current.

Isolators - Gate Drivers Feature Summary

• Provides galvanic isolation for high-side and low-side gate driving applications
• Features high electromagnetic immunity for robust signal integrity
• Supports automotive qualification standards for reliability

Isolators - Gate Drivers Applications

• Automotive power electronics systems
• Industrial motor control drives
• High-voltage isolated switching circuits

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix 'AS' against official Skyworks documentation to confirm package type and tape/reel specifications. Ensure compatibility with required isolation voltage ratings and thermal management solutions for the SOIC-Wide-16 package. Cross-reference part numbers carefully as suffixes often denote packaging or variant differences that do not alter electrical function.

Isolators - Gate Drivers Selection Notes

Select this component when a dual-channel isolated driver with 2.5 kVrms isolation is required for automotive or industrial environments. Consider the 500 mA peak output current capability and 45 ns propagation delay for switching speed requirements. Verify that the 16-SOIC-Wide footprint fits the design constraints and that the operating temperature range meets system specifications.

Isolators - Gate Drivers Part Context

This part belongs to the Si823x family of ISOdrivers, which are designed for high-performance isolated gate driving. The family includes variants with different isolation ratings and output currents. The SI8231AB-AS specifically targets applications requiring 2.5 kVrms isolation with automotive-grade reliability, distinguishing it from higher voltage or non-automotive variants in the same series.

Isolators - Gate Drivers Replacement Considerations

Check Skyworks documentation for direct pin-compatible alternatives within the Si823x series. Variants such as SI8231AD may offer different isolation ratings or UVLO thresholds. Ensure any substitute matches the 2.5 kVrms isolation requirement and automotive qualification status if applicable.