SI8645BB-AUR

Digital Isolators Overview

The SI8645BB-AUR is a general-purpose automotive-grade digital isolator from the Si864x series, manufactured by Skyworks Solutions Inc. It features four unidirectional channels with a data rate of 150 Mb/s and an insulation voltage of 2500 Vrms. The device utilizes capacitive coupling technology and operates within a supply voltage range of 2.375 V to 5.5 V. It is housed in a 16-lead SOIC-Narrow package and supports AEC-Q100 qualification for automotive applications.

Digital Isolators Feature Summary

• Provides electrical isolation between high-voltage circuits and low-voltage control electronics
• Features four unidirectional signal channels for general-purpose digital isolation
• Utilizes capacitive coupling technology for signal transmission across the isolation barrier

Digital Isolators Applications

• Automotive telematics systems
• Automated emergency management interfaces
• General-purpose digital isolation in automotive environments

Digital Isolators Procurement Notes

Verify that the specific suffix 'AUR' corresponds to the required tape-and-reel packaging configuration, as this differs from tube-packaged variants like the IS1 or AS. Confirm the component meets the AEC-Q100 qualification standards required for your specific automotive application tier. Ensure the 2500 Vrms insulation rating aligns with your system's safety isolation requirements.

Digital Isolators Selection Notes

Select this component when four unidirectional channels are required for automotive-grade isolation. The 150 Mb/s data rate suits most standard communication protocols. Consider the 16-lead SOIC-Narrow package for space-constrained PCB layouts. Verify that the 2.375 V minimum supply voltage is compatible with your system's logic levels.

Digital Isolators Part Context

This part belongs to the Si864x family of digital isolators, which combines high-speed dual- or quad-signal isolation capabilities. The family is designed for automotive and industrial applications requiring robust isolation. The SI8645 variant specifically offers four forward channels without reverse feedback paths.

Digital Isolators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.