SI88221EC-AS

Digital Isolators Overview

The SI88221EC-AS is a dual-channel digital isolator from Skyworks Solutions, housed in a 16-pin SOIC package. It operates on a supply voltage between 3 V and 5.5 V with a maximum data rate of 100 Mb/s. The device provides an insulation voltage of 3750 Vrms and features a propagation delay of 23 ns. It supports unidirectional signal transmission across two channels without a shutdown function. The component functions within a temperature range of -40°C to +125°C.

Digital Isolators Feature Summary

• Integrates dual digital isolation channels with an on-chip isolated DC-DC converter for power delivery
• Provides high common-mode transient immunity to ensure reliable signal integrity in noisy environments
• Supports unidirectional data transmission at speeds up to 100 Mb/s
• Operates reliably across extended industrial temperature ranges

Digital Isolators Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing safe patient isolation
• Power electronics control circuits
• Inverter gate drive applications

Digital Isolators Procurement Notes

Verify the specific suffix 'AS' against official Skyworks documentation to confirm tape-and-reel packaging requirements. Ensure the selected variant matches the required insulation voltage rating of 3750 Vrms for your design. Cross-reference the pinout and thermal characteristics with the latest datasheet before finalizing procurement orders.

Digital Isolators Selection Notes

Select this component when dual-channel isolation with integrated power conversion is necessary. Compare the 3750 Vrms insulation rating against system safety standards. Evaluate the 23 ns propagation delay against timing constraints. Confirm that the 16-SOIC package fits the available PCB footprint and thermal management strategy.

Digital Isolators Part Context

This part belongs to the Si88x2x family of dual digital isolators. These devices combine proven isolation technology with an on-chip DC-DC converter, eliminating the need for external isolated power supplies. The series is designed to replace bulky magnetic isolators while offering superior size, reliability, and performance metrics.

Digital Isolators Replacement Considerations

Check for variants with different insulation ratings or packaging options within the same product family. Verify compatibility with existing board layouts if substituting with other SOIC-16 isolators.