SI88240BC-IS

Digital Isolators Overview

The SI88240BC-IS is a Skyworks Solutions digital isolator featuring four unidirectional channels and an integrated DC-DC converter. It provides 5000 Vrms isolation voltage with a data rate of 100 Mb/s and propagation delay of 18 ns. Operating on 3 V to 5.5 V supplies, it uses capacitive coupling in a 20-SOIC package. The device supports -40°C to +125°C operation.

Digital Isolators Feature Summary

• Integrates a 2W isolated DC-DC converter for power delivery across the isolation barrier.
• Utilizes CMOS-based capacitive coupling technology for high reliability and low power consumption.
• Features unidirectional signal transmission with four independent channels.

Digital Isolators Applications

• Industrial automation systems
• Inverter and motor drive circuits
• Programmable logic controller (PLC) input/output modules

Digital Isolators Procurement Notes

Verify the specific suffix against official Skyworks documentation to confirm insulation ratings and pinout compatibility. Ensure the selected variant matches the required isolation voltage and package dimensions for the target PCB layout. Cross-reference datasheet revisions to confirm current manufacturing status and availability constraints.

Digital Isolators Selection Notes

Select this component when high channel density and integrated power conversion are required within a single package. Consider the 100 Mb/s data rate and 18 ns delay for timing-sensitive applications. Evaluate thermal performance and board space requirements relative to the SOIC-wide-20 footprint.

Digital Isolators Part Context

This part belongs to the Si88xx ISOvolt family, designed to replace optocouplers in industrial settings. It offers superior performance regarding size, cost, and power efficiency while maintaining robust isolation capabilities suitable for demanding electrical environments.

Digital Isolators Replacement Considerations

Public confirmed substitute part numbers: SI88240BD-IS, SI88240BC-AS.