SI82394AD4-AS3

Isolators - Gate Drivers Overview

The SI82394AD4-AS3 is a dual-channel, automotive-grade, galvanically isolated gate driver from the Si8239x series by Skyworks Solutions. It utilizes capacitive coupling technology to provide high electromagnetic immunity and reliable signal transmission across isolation barriers. The device features a non-inverting logic configuration with TTL-compatible inputs. It operates within an extended temperature range of -40°C to +125°C and is housed in a 14-pin SOIC-Wide package. Key electrical specifications include a maximum propagation delay of 40 ns, rise and fall times of 12 ns, and a peak output current capability of 4 A per channel.

Isolators - Gate Drivers Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for robust performance in vehicle environments
• High electromagnetic immunity enabled by proprietary capacitive coupling isolation architecture
• Integrated undervoltage lockout (UVLO) mechanism ensures safe switching operations under varying supply conditions

Isolators - Gate Drivers Applications

• Electric vehicle powertrain control systems
• On-board charger (OBC) gate driving
• DC-DC converter isolation stages

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix AS3 against official Skyworks documentation to confirm automotive grade status and pinout compatibility. Ensure the ordering part number matches the required insulation voltage and package variant. Cross-reference datasheet revisions to validate parameter consistency before integration into production designs.

Isolators - Gate Drivers Selection Notes

Select this component when automotive reliability and high noise immunity are critical requirements. The dual-channel design supports half-bridge configurations efficiently. Consider the 4A peak drive strength for medium-power MOSFET or IGBT applications. Verify thermal management needs given the 2.1 W power dissipation rating in the SOIC-Wide package.

Isolators - Gate Drivers Part Context

This device belongs to the Si8239x family of isolated gate drivers designed for demanding industrial and automotive applications. The family emphasizes durability and signal integrity through advanced isolation techniques. The SI82394AD4-AS3 specifically targets automotive markets, offering enhanced ruggedness compared to standard industrial variants while maintaining compact form factors.

Isolators - Gate Drivers Replacement Considerations

Check Skyworks official substitution guides for equivalent parts within the Si8239x series. Verify if alternative suffixes offer different packaging or temperature grades without altering functional parameters.