SI88442ED-IS

Overview

The SI88442ED-IS is a Skyworks Solutions digital isolator featuring four unidirectional channels and an integrated DC-DC converter. It provides 5000 Vrms isolation via capacitive coupling with a data rate of 100 Mb/s. The device operates on a 3 V to 5.5 V supply, exhibits 18 ns propagation delay, and supports AEC-Q100 qualification. It is housed in a 20-SOIC wide package.

Feature Summary

• Integrates a high-efficiency DC-DC converter for isolated power generation
• Provides robust 5000 Vrms capacitive isolation barrier
• Supports automotive reliability standards through AEC-Q100 qualification

Applications

• Automotive electronic control units
• Industrial communication interfaces
• Medical equipment signal isolation

Procurement Notes

Verify the NRND status before procurement as this component is not recommended for new designs. Confirm the specific suffix matches required packaging and temperature grades. Ensure compatibility with existing system voltage levels and isolation requirements during final validation.

Selection Notes

Select this part when a single-chip solution combining isolation and power conversion is required. The 4-channel configuration suits parallel data lines. Verify that the 100 Mb/s speed meets application needs. Consider the 20-pin package size constraints against available PCB space.

Part Context

This component belongs to the Si884xx family of digital isolators with integrated power supplies. It replaces discrete solutions by combining isolation barriers with on-board DC-DC conversion. The series targets applications requiring high reliability and compact form factors in harsh environments.

Replacement Considerations

Check for SI88442ED-AS or SI88442ED-ISR as potential functional equivalents within the same family. Verify pinout compatibility and insulation voltage ratings before substitution.