SI88442BD-IS

Overview

The SI88442BD-IS is a Skyworks digital isolator featuring four unidirectional channels in a 2/2 configuration within a 20-SOIC package. It supports data rates up to 100 Mb/s with a propagation delay of 18 ns and rise/fall times of 2.5 ns. The device provides 5000 Vrms isolation voltage and operates on supply voltages between 3 V and 5.5 V. It functions within a temperature range of -40°C to +125°C, drawing 10.8 mA of operating current.

Feature Summary

• Provides high-speed signal transmission via four independent unidirectional channels.
• Ensures electrical safety through robust capacitive coupling insulation technology.
• Delivers precise timing performance with low pulse width distortion characteristics.

Applications

• Industrial automation control systems
• Power electronics monitoring interfaces
• Medical equipment signal isolation

Procurement Notes

Verify the specific suffix 'IS' against official Skyworks documentation to confirm the exact pinout and functional specifications, as ordering codes define critical hardware differences. Confirm availability status directly with authorized distributors, as this component may be subject to restricted supply conditions or lifecycle limitations such as non-recommended new designs.

Selection Notes

Select this component when four isolated bidirectional paths are required for general-purpose digital communication. Ensure the design accommodates the 20-SOIC footprint and validates thermal management for the specified operating current. Verify that the 100 Mb/s data rate and 5000 Vrms isolation rating meet the system's electromagnetic interference and safety compliance requirements.

Part Context

This part belongs to the Si884xx series of digital isolators from Skyworks Solutions. These devices utilize proprietary capacitive coupling technology to replace traditional magnetic transformers, offering superior reliability and smaller form factors for modern interface applications requiring galvanic isolation.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.