SI88641EC-AS

Overview

The SI88641EC-AS is a four-channel digital isolator from Skyworks Solutions, housed in a 24-pin SOIC package. It supports unidirectional data transmission at speeds up to 100 Mb/s with a propagation delay of 18 ns. The device provides 5000 Vrms isolation voltage and withstands common-mode transients of 40 kV/µs. Operating on a single supply voltage between 3 V and 5.5 V, it functions within a temperature range of -40°C to +125°C. Key electrical characteristics include a maximum rise/fall time of 25 ns and pulse width distortion of 4.5 ns.

Feature Summary

• Provides high-speed digital signal isolation across four independent channels
• Features robust immunity to high-frequency common-mode noise
• Supports wide operating voltage ranges for flexible system integration
• Designed for reliable operation in extreme industrial temperature environments

Applications

• Industrial automation control systems
• Medical equipment signal isolation
• Power electronics gate drive interfaces
• Automotive sensor interface circuits

Procurement Notes

Verify the specific suffix AS against official Skyworks documentation to confirm pinout and thermal specifications. Ensure compatibility with your PCB footprint requirements for the 24-SOIC package. Check current availability status as distribution may vary by region. Confirm RoHS compliance details through the manufacturer's latest product change notifications before finalizing procurement orders.

Selection Notes

Select this component when four isolated bidirectional or unidirectional channels are required for high-speed data transfer. Consider the 5000 Vrms isolation rating for safety-critical applications. Evaluate the 100 Mb/s data rate against system timing requirements. Verify that the 24-pin SOIC package fits within the available board space constraints.

Part Context

This part belongs to the Si8864x family of digital isolators designed for general-purpose isolation needs. It utilizes capacitive coupling technology to transmit signals across an isolation barrier. The series is engineered to replace traditional optocouplers in modern electronic designs requiring higher reliability and lower power consumption.

Replacement Considerations

The SI88641EC-IS is a related variant within the same family offering similar isolation capabilities. Verify pin-to-pin compatibility and electrical parameter alignment before substitution. Consult official Skyworks documentation for detailed cross-reference information.