SI82391AD-ASR

Isolators - Gate Drivers Overview

The SI82391AD-ASR is a dual-channel, galvanically isolated gate driver from Skyworks Solutions. It features capacitive coupling for signal transmission with an isolation voltage of 2500 Vrms. The device operates within a temperature range of -40°C to +125°C and is housed in a 16-SOIC package. Key electrical parameters include a maximum propagation delay of 40 ns, rise and fall times of 12 ns each, and a peak output current capability of 4 A. It supports non-inverting logic configuration and consumes 7.2 mA of working supply current.

Isolators - Gate Drivers Feature Summary

• Automotive-grade qualification for high reliability applications
• High electromagnetic immunity via capacitive coupling technology
• Dual independent channels for simultaneous control

Isolators - Gate Drivers Applications

• Automotive power electronics systems
• Motor drive control circuits
• Inverter gate driving

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix 'ASR' indicates tape and reel packaging when sourcing components. Confirm automotive grade compliance requirements against project specifications. Ensure compatibility with the 16-SOIC footprint during PCB layout. Check for RoHS compliance status as per manufacturer documentation.

Isolators - Gate Drivers Selection Notes

Select this component for applications requiring robust isolation in noisy environments. The dual-channel design simplifies circuit topology for half-bridge or full-bridge configurations. Consider the 4A output current for driving medium-power MOSFETs or IGBTs. Verify thermal dissipation capabilities within the SOIC-16 package for the intended operating conditions.

Isolators - Gate Drivers Part Context

This part belongs to the Si8239x series of isolated gate drivers. It utilizes Skyworks' proprietary capacitive isolation technology. The series is designed to replace traditional magnetic isolators in demanding industrial and automotive sectors. It offers improved performance over legacy optocoupler solutions.

Isolators - Gate Drivers Replacement Considerations

Check datasheets for direct pin-compatible alternatives within the same family. Verify if other suffixes like BD or CD meet the specific packaging needs. Ensure functional equivalence in isolation voltage and propagation delay before substitution.