SI823H4AD-AS3

Isolators - Gate Drivers Overview

The SI823H4AD-AS3 is a dual-channel, automotive-grade digital isolator gate driver manufactured by Skyworks Solutions. It integrates high-side and low-side drivers within a single package to provide galvanic isolation for power switching applications. The device features a wide operating supply voltage range of 10.8 V to 26.5 V on the output side and supports input logic levels from 2.5 V to 5.5 V. It offers up to 5 kVRMS isolation capability and handles a peak differential voltage of 1500 VDC between channels. The component operates reliably across an extended temperature range of -40°C to +125°C and utilizes a 14-pin Wide SOIC package.

Isolators - Gate Drivers Feature Summary

• Integrates both high-side and low-side isolated gate drivers in a single compact package
• Provides robust galvanic isolation with up to 5 kVRMS rating and 1500 VDC peak differential voltage
• Designed for automotive environments with high electromagnetic immunity and wide operating temperature range

Isolators - Gate Drivers Applications

• Automotive motor control systems
• Inverter bridge driving in electric vehicles
• Isolated power supply gate drive circuits

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix AS3 against the manufacturer's current datasheet to confirm pinout compatibility and packaging type. Ensure the selected variant meets the required AEC-Q100 qualification standards for your specific automotive application tier. Cross-reference the 14-SOIC package dimensions with your PCB footprint library before finalizing procurement to avoid assembly errors.

Isolators - Gate Drivers Selection Notes

Select this component when a dual-channel isolated driver is required for high-side and low-side configurations in a single footprint. It is suitable for applications demanding high common-mode transient immunity and reliable operation under harsh automotive electrical noise conditions. Consider the 14-SOIC package constraints and thermal dissipation requirements relative to the expected switching frequency and load current.

Isolators - Gate Drivers Part Context

This part belongs to the Si823Hx series of automotive-grade digital isolators. The series focuses on providing integrated solutions for half-bridge and full-bridge topologies. The H4 designation typically indicates a dual-driver configuration with specific isolation ratings optimized for automotive power electronics, distinguishing it from single-channel or lower-isolation variants within the broader family.

Isolators - Gate Drivers Replacement Considerations

Check Skyworks documentation for direct pin-to-pin replacements within the Si823Hx family, such as the SI823H4BD-AS3, ensuring isolation ratings and package types match exactly.