SI88240ED-AS

Overview

The SI88240ED-AS is a high-speed digital isolator from Skyworks Solutions, featuring four unidirectional channels and an integrated DC-DC converter. It operates within a supply voltage range of 3 V to 5.5 V and supports data rates up to 100 Mb/s. The device provides 5000 Vrms isolation voltage with a propagation delay of 18 ns. It utilizes capacitive coupling technology and is housed in a 20-pin SOIC package.

Feature Summary

• Integrates a fully-featured secondary sensing feedback-controlled DC-DC converter for power generation across the isolation barrier.
• Offers high-speed signal transmission with low propagation delay and high common-mode transient immunity.
• Provides robust electrical isolation suitable for demanding industrial and communication applications.

Applications

• Industrial automation systems requiring isolated communication interfaces
• Medical equipment needing galvanic isolation for safety compliance
• Power electronics control circuits with integrated power supply needs

Procurement Notes

Verify the specific suffix 'ED-AS' against the manufacturer's current datasheet to confirm pinout and packaging details. Check for lifecycle status as some variants may be marked as Not Recommended for New Designs (NRND). Ensure compatibility with your system's voltage levels and isolation requirements before procurement.

Selection Notes

Select this component when a single-chip solution combining digital isolation and isolated power is required. It simplifies board design by eliminating external isolated power supplies. Consider the 20-pin SOIC package size and thermal characteristics relative to your enclosure constraints.

Part Context

This part belongs to the Skyworks Si8824x family of digital isolators with integrated DC-DC converters. These devices are designed to replace traditional transformer-based or optocoupler solutions in high-speed data isolation applications, offering improved reliability and smaller form factors.

Replacement Considerations

Consult official substitution guides for equivalent parts from Skyworks or other manufacturers. Verify that any replacement maintains the same isolation voltage, data rate, and package dimensions to ensure mechanical and electrical compatibility.