SI8645BB-AS

Digital Isolators Overview

The SI8645BB-AS is a Skyworks Solutions digital isolator featuring four unidirectional channels with capacitive coupling technology. It operates within a supply voltage range of 2.5 V to 5.5 V and supports data rates up to 150 Mb/s. The device provides an insulation voltage of 2500 Vrms and exhibits a typical propagation delay of 8 ns. It is housed in a 16-pin SOIC package and is qualified under AEC-Q100 standards for automotive applications, ensuring reliability across a wide operating temperature range.

Digital Isolators Feature Summary

• Capacitive coupling isolation architecture
• AEC-Q100 automotive qualification
• Unidirectional signal transmission

Digital Isolators Applications

• Automotive electronic control units
• Industrial communication interfaces
• Power conversion systems

Digital Isolators Procurement Notes

Verify the specific suffix 'AS' against official Skyworks documentation to confirm package type and tape/reel specifications. Ensure compatibility with moisture sensitivity levels and reflow soldering profiles defined in the datasheet. Cross-reference ordering information directly with manufacturer sources to avoid discrepancies in packaging quantities or variant definitions.

Digital Isolators Selection Notes

Select this component when high-speed unidirectional isolation is required in space-constrained designs. The 16-pin SOIC package offers a compact footprint suitable for dense PCB layouts. Consider the 2500 Vrms isolation rating for basic protection requirements and verify that the 150 Mb/s data rate meets system timing constraints without requiring shutdown functionality.

Digital Isolators Part Context

This part belongs to the Si864x series of digital isolators from Skyworks Solutions. The series utilizes proprietary capacitive isolation technology to provide robust signal transmission between isolated circuits. The SI8645 variant specifically provides four forward channels, catering to multi-line data bus applications in industrial and automotive sectors.

Digital Isolators Replacement Considerations

Check Skyworks documentation for direct pin-compatible substitutes within the Si864x family. Verify if alternative suffixes offer different packaging options while maintaining identical electrical characteristics. Confirm that any replacement maintains AEC-Q100 qualification if used in automotive contexts.