SI8661BB-AS1R

Digital Isolators Overview

The SI8661BB-AS1R is a Skyworks Solutions digital isolator featuring six channels with five forward and one reverse configuration. It utilizes capacitive coupling technology to provide an isolation voltage of 2500 Vrms. The device supports data rates up to 150 Mb/s with a typical propagation delay of 8 ns. Operating on a supply voltage range of 2.5 V to 5.5 V, it draws a maximum operating current of 7.9 mA. The component is housed in a 16-SOIC package and functions within a temperature range of -40°C to +125°C.

Digital Isolators Feature Summary

• Capacitive coupling isolation architecture for high noise immunity
• Automotive-grade reliability certification
• Low power consumption design for energy efficiency
• High common-mode transient immunity capability

Digital Isolators Applications

• Automotive battery management systems
• Motor control inverters
• Industrial communication interfaces
• Power supply feedback loops

Digital Isolators Procurement Notes

Verify the specific suffix AS1R indicates tape and reel packaging when sourcing. Confirm that the automotive qualification aligns with target application requirements. Check datasheet revisions for any updates to electrical characteristics or pinout definitions prior to final procurement decisions.

Digital Isolators Selection Notes

Select this model when a 2500 Vrms isolation barrier is sufficient for the system design. The 5+1 channel configuration suits applications requiring asymmetric signal routing. Ensure the SOIC-16 footprint matches the PCB layout constraints. Consider the 150 Mb/s speed limit against system timing requirements.

Digital Isolators Part Context

This part belongs to the Si866x family of digital isolators from Skyworks Solutions. The series offers various channel counts and isolation voltages. The SI8661 variant specifically provides the 5-forward, 1-reverse topology. It serves as a robust interface solution between low-voltage logic and high-voltage power stages.

Digital Isolators Replacement Considerations

SI8661BC-AS1R offers higher 3.75 kV isolation. SI8661BD-B-IS1R provides 5 kV isolation. SI8660BA-AS1R features six forward channels only. Verify insulation ratings and channel directionality before substitution.