SI8641BC-B-IS1R

Digital Isolators Overview

The SI8641BC-B-IS1R is a Skyworks Solutions digital isolator featuring four channels with three forward and one reverse configuration. It utilizes capacitive coupling technology to provide an insulation voltage of 3750 Vrms. The device supports data rates up to 150 Mb/s with a maximum propagation delay of 8 ns. It operates on a supply voltage range of 2.375 V to 5.5 V and functions within a temperature range of -40°C to +125°C. Packaged in a 16-SOIC (0.154 inch, 3.90 mm wide) surface-mount format, it offers a common-mode transient immunity of 35 kV/µs.

Digital Isolators Feature Summary

• Capacitive coupling isolation architecture for high-speed signal transmission
• High common-mode transient immunity capability
• Wide operating supply voltage range supporting various logic levels
• Unidirectional channel configuration with shutdown functionality

Digital Isolators Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment signal isolation interfaces
• Power management circuit monitoring and control
• General-purpose digital communication bus isolation

Digital Isolators Procurement Notes

Verify the specific suffix designation against official Skyworks documentation to confirm package type and reel specifications. Confirm RoHS compliance status and moisture sensitivity level requirements prior to integration. Check for any recent product change notices or lifecycle status updates that may affect long-term availability. Ensure compatibility with standard reflow soldering profiles for SOIC-Narrow packages.

Digital Isolators Selection Notes

Select this component when high common-mode noise rejection is critical for system integrity. The 3750 Vrms isolation rating suits applications demanding robust barrier protection between low-voltage control circuits and high-voltage power stages. Consider the 150 Mbps data rate limit for bandwidth requirements. The unidirectional nature requires separate components for bidirectional data paths.

Digital Isolators Part Context

This part belongs to the Si864x family of general-purpose digital isolators from Skyworks Solutions. It complements other variants like the SI8641BB series which offer lower isolation ratings. The family shares similar pinouts and functional characteristics, allowing for design flexibility across different voltage isolation requirements while maintaining consistent interface protocols.

Digital Isolators Replacement Considerations

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