SI8641AB-AS1

Digital Isolators Overview

The SI8641AB-AS1 is a four-channel digital isolator from the Si864x series, manufactured by Skyworks Solutions Inc. It features three forward and one reverse unidirectional channel configuration with capacitive coupling technology. The device supports data rates up to 150 Mb/s and offers an insulation voltage of 2.5 kVRMS. It operates within a supply voltage range of 2.375 V to 5.5 V and functions across a temperature range of -40°C to +125°C. Packaged in a QSOP-16 format, it includes AEC-Q100 qualification for automotive reliability.

Digital Isolators Feature Summary

• Capacitive coupling isolation technology for high-speed signal transmission
• AEC-Q100 qualified for automotive application reliability
• Unidirectional channel architecture with shutdown capability

Digital Isolators Applications

• Automotive electronic control units
• Industrial communication interfaces
• Power supply feedback loops

Digital Isolators Procurement Notes

Verify the specific suffix AS1 against the manufacturer's current datasheet revision to ensure compatibility with required packaging and moisture sensitivity levels. Confirm that the QSOP-16 package meets your PCB footprint requirements. Check for any recent updates to the AEC-Q100 qualification status or operating temperature ranges before finalizing procurement decisions.

Digital Isolators Selection Notes

Select this component when a four-channel unidirectional isolator with automotive qualification is required. Ensure the system design accommodates the 2.375 V to 5.5 V supply range and the 150 Mb/s data rate capability. Verify that the capacitive coupling isolation barrier meets the necessary creepage and clearance distances for your specific safety standards.

Digital Isolators Part Context

This part belongs to the Si864x family of digital isolators, which utilizes Skyworks' proprietary capacitive isolation technology. The family provides robust performance in noisy environments while maintaining low power consumption. The SI8641AB-AS1 specifically targets applications requiring high reliability and wide operating temperature ranges.

Digital Isolators Replacement Considerations

SI8641EB-B-IU

Digital Isolators FAQ

What is the isolation voltage rating?

The SI8641AB-AS1 has an insulation voltage rating of 2.5 kVRMS.

Is this component suitable for automotive applications?

Yes, the SI8641AB-AS1 is AEC-Q100 qualified for automotive use.