SI88321EC-ISR

Digital Isolators Overview

The SI88321EC-ISR is a Skyworks Solutions digital isolator featuring two unidirectional channels and an integrated DC-DC converter. It provides 3750 Vrms isolation voltage with capacitive coupling technology. The device supports data rates up to 100 Mb/s, operates within a supply voltage range of 3 V to 5.5 V, and draws 8 mA of operating current. Key electrical parameters include an 18 ns propagation delay, 2.5 ns rise/fall times, and a 10 ns pulse width. It is housed in a SOIC-20 package.

Digital Isolators Feature Summary

• Integrates a 2W DC-DC converter for isolated power generation
• Utilizes capacitive coupling for high-speed signal transmission
• Provides robust common-mode transient immunity

Digital Isolators Applications

• Industrial automation systems
• Motor drive circuits
• Inverter applications

Digital Isolators Procurement Notes

Verify the specific suffix 'ISR' against official Skyworks documentation to confirm the tape-and-reel packaging configuration and ensure compatibility with automated surface-mount assembly processes. Cross-reference the part number with the latest datasheet revision to validate insulation ratings and thermal specifications before finalizing procurement orders.

Digital Isolators Selection Notes

Select this component when a compact solution combining signal isolation and isolated power delivery is required. It is suitable for designs needing 3750 Vrms safety isolation with bidirectional or unidirectional channel requirements. Consider the integrated DC-DC converter capability to reduce external component count and board space compared to discrete isolator solutions.

Digital Isolators Part Context

This part belongs to the Si88xx ISOvolt family of digital isolators from Skyworks Solutions. These devices are designed to replace traditional optocouplers, offering improved performance, smaller form factors, and enhanced reliability. The series targets industrial and automotive applications requiring high-speed data transfer across isolation barriers.

Digital Isolators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.