SI88640EC-ASR

Overview

The SI88640EC-ASR is a four-channel unidirectional digital isolator from Skyworks Solutions, housed in a 24-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 5000 Vrms and features a propagation delay of 18 ns. It functions within a temperature range of -40°C to +125°C and includes no shutdown control.

Feature Summary

• Utilizes capacitive coupling technology for signal isolation
• Provides high common-mode transient immunity
• Supports unidirectional data transmission across four channels

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment interfaces needing safety isolation
• Power electronics monitoring circuits

Procurement Notes

Verify the specific suffix ASR against official Skyworks documentation to confirm tape-and-reel packaging and moisture sensitivity level requirements. Ensure compatibility with standard SOIC-24 footprint dimensions during PCB layout. Confirm that the 5000 Vrms isolation rating meets the specific safety standards required by your target application environment.

Selection Notes

Select this component when a four-channel unidirectional isolator with 5000 Vrms isolation is required. It is suitable for applications needing 100 Mb/s data rates without bidirectional communication needs. Consider the 24-SOIC package size for space-constrained designs. Verify that the operating temperature range of -40°C to +125°C aligns with environmental conditions.

Part Context

This part belongs to the Si8864x series of digital isolators from Skyworks Solutions. These devices are designed to replace traditional optocouplers in modern electronic systems. The series offers improved performance metrics including higher speed and lower power consumption compared to legacy isolation technologies.

Replacement Considerations

Check Skyworks documentation for direct pin-compatible alternatives within the Si8864x family. Verify if variants with different isolation voltages or channel counts better suit specific design constraints.