SI8661BD-AS2R

Digital Isolators Overview

The SI8661BD-AS2R is an automotive-grade digital isolator from Skyworks Solutions, featuring six channels with a unidirectional configuration of five forward and one reverse path. It utilizes capacitive coupling technology to provide a high insulation voltage of 5000 Vrms. The device supports data rates up to 150 Mb/s with a propagation delay of 8 ns and a common-mode transient immunity of 35 kV/µs. Operating on a supply voltage range of 2.5 V to 5.5 V, it draws a typical operating current of 7.9 mA. Packaged in a 16-SOIC (0.295 inch width) reel for surface mount installation, it functions reliably within a temperature range of -40°C to +125°C.

Digital Isolators Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for reliability
• High-speed signal transmission capability at 150 Mb/s
• Robust isolation barrier rated at 5000 Vrms

Digital Isolators Applications

• Automotive powertrain control systems
• On-board charger interfaces
• Battery management system communication
• Motor drive gate driver isolation

Digital Isolators Procurement Notes

Verify the specific suffix 'AS2R' against official Skyworks documentation to confirm the reel packaging format and exact channel directionality. Ensure the procurement order matches the required AEC-Q100 automotive grade specification. Cross-reference the datasheet revision date to guarantee compatibility with current design requirements and regulatory standards.

Digital Isolators Selection Notes

Select this component when high-speed bidirectional-like isolation is required in automotive environments. The 150 Mb/s rate suits CAN FD or Ethernet applications. The 5000 Vrms rating provides safety margin over lower-rated alternatives. Consider the 16-SOIC package dimensions for PCB layout constraints compared to wider SOIC variants.

Digital Isolators Part Context

This part belongs to the Si866x family of digital isolators, designed specifically for demanding industrial and automotive applications. The series emphasizes low power consumption and high reliability through proprietary capacitive isolation technology. The SI8661 variant offers a versatile 6-channel configuration, balancing channel count with performance metrics for complex system architectures.

Digital Isolators Replacement Considerations

SI8661BD-B-IS2R is a confirmed substitute within the same product line offering identical electrical specifications and channel configuration.