SI88343BD-IS

Digital Isolators Overview

The SI88343BD-IS is a general-purpose digital isolator from Skyworks Solutions, featuring four channels in a 24-SOIC package. It supports unidirectional signal transmission at data rates up to 100 Mb/s with a propagation delay of 18 ns. The device provides 5000 Vrms isolation voltage and operates on supply voltages between 3 V and 5.5 V. Key electrical characteristics include rise and fall times of 2.5 ns maximum, pulse width distortion of 4.5 ns, and common-mode transient immunity of 40 kV/µs. It functions within an industrial temperature range of -40°C to +125°C.

Digital Isolators Feature Summary

• High-speed unidirectional signal isolation with 100 Mb/s data rate capability
• Robust capacitive coupling technology ensuring reliable performance
• Integrated design reduces component count compared to discrete solutions

Digital Isolators Applications

• Industrial automation systems
• Power electronics monitoring
• General-purpose isolated communication interfaces

Digital Isolators Procurement Notes

Verify the specific suffix 'BD-IS' against official Skyworks documentation to confirm pinout and package dimensions. Ensure compatibility with required isolation standards for the target application environment. Check current lifecycle status as components may transition to non-recommended-for-new-design status. Confirm moisture sensitivity level handling requirements during assembly processes.

Digital Isolators Selection Notes

Select this component when high channel density and moderate speed are required for unidirectional isolation. Consider the 24-SOIC footprint for board space constraints. Evaluate the 40 kV/µs CMTI rating against noise environments. Compare power consumption and operating voltage ranges with system requirements before finalizing the design choice.

Digital Isolators Part Context

This part belongs to the Si8834x series of digital isolators, designed to replace optocouplers in modern applications. It utilizes CMOS technology for improved reliability and lower power consumption. The series offers various channel configurations and packaging options to suit diverse interface needs in industrial and consumer markets.

Digital Isolators Replacement Considerations

Direct replacements include SI88343BC-AS and SI88343BD-ISR. Verify pin-to-pin compatibility and electrical parameter equivalence before substitution. Review datasheet revisions for any functional changes in alternative suffixes.