SI8661ED-ASR

Digital Isolators Overview

The SI8661ED-ASR is a six-channel automotive-grade digital isolator manufactured by Skyworks Solutions. It features five forward and one reverse channel configuration with capacitive coupling technology. The device supports a data rate of 150 Mb/s and provides an insulation voltage of 5000 Vrms. 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. The component is housed in a 16-SOIC package.

Digital Isolators Feature Summary

• Automotive qualification compliant for reliable operation in vehicle environments
• High common-mode transient immunity ensures signal integrity under noisy conditions
• Capacitive coupling technology enables robust isolation without magnetic interference

Digital Isolators Applications

• Automotive powertrain control systems
• Electric vehicle battery management systems
• Inverter gate drive circuits

Digital Isolators Procurement Notes

Verify the specific suffix ASR indicates tape-and-reel packaging when sourcing. Confirm AEC-Q100 certification status for your specific automotive application requirements. Ensure compatibility with 16-SOIC footprint during PCB layout. Check current availability as automotive components may have restricted distribution channels.

Digital Isolators Selection Notes

Select this model when high channel count and automotive reliability are required. Compare against SI8661BC variants if lower insulation voltage suffices. Consider propagation delay specifications for timing-critical interfaces. Verify thermal dissipation capabilities within the SOIC package constraints for your design.

Digital Isolators Part Context

This part belongs to the Si866x family of digital isolators from Skyworks Solutions. It utilizes proprietary capacitive isolation technology to provide electrical isolation between circuit domains. The series is designed for applications requiring high reliability and low power consumption in industrial and automotive sectors.

Digital Isolators Replacement Considerations

SI8661ED-B-IS2 is a verified alternative offering similar 5 kV isolation and 6-channel configuration in a wide SOIC package. SI8661BC-AS1 serves as a substitute if 3.75 kV isolation meets system requirements.