SI88641ED-IS

Overview

The SI88641ED-IS is a Skyworks Solutions digital isolator featuring an integrated DC-DC converter. It provides four unidirectional channels with a data rate of 100 Mb/s and an isolation voltage of 5000 Vrms using capacitive coupling technology. The device operates within a supply voltage range of 3 V to 5.5 V, offering a propagation delay of 18 ns and rise/fall times of 2.5 ns. It supports a pulse width of 10 ns with 7 ns distortion. The component is housed in a 24-pin SOIC-Wide package, rated for AEC-Q100 qualification, and functions between -40°C and +125°C.

Feature Summary

• Integrates a high-voltage DC-DC converter for isolated power generation
• Provides four-channel unidirectional signal isolation via capacitive coupling
• Supports automotive reliability standards through AEC-Q100 qualification

Applications

• Automotive electronic control units requiring galvanic isolation
• Industrial communication interfaces needing robust noise immunity
• Power conversion systems utilizing integrated isolated power supplies

Procurement Notes

Verify the specific datasheet revision and manufacturing date code upon ordering. Confirm that the 24-pin SOIC-Wide package dimensions match the target PCB footprint. Ensure thermal management strategies account for the specified power dissipation limits during operation. Check for any recent lifecycle status updates from Skyworks Solutions regarding availability or recommended alternatives.

Selection Notes

Select this component when a single-chip solution combining signal isolation and isolated power delivery is required. The unidirectional channel configuration suits applications where data flows strictly one way across the isolation barrier. Consider the 100 Mb/s data rate capability against system timing requirements. Evaluate the integrated DC-DC converter output specifications to ensure compatibility with downstream isolated circuit loads.

Part Context

This part belongs to the Si886xx family of digital isolators with integrated DC-DC converters. It shares the SOIC-Wide-24 package form factor with related models like the SI88640 and SI88644. The series is designed for high-reliability applications demanding robust isolation performance and simplified power architecture in compact footprints.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult Skyworks Solutions official resources for current cross-reference information.