SI86S631EC-AS1R

Digital Isolators Overview

The SI86S631EC-AS1R is a Skyworks Solutions automotive-grade digital isolator featuring three unidirectional channels with capacitive coupling technology. It provides a 3.75 kVrms isolation voltage rating and operates within a supply voltage range of 2.5 V to 5.5 V. The device supports data rates up to 150 Mbps, with typical propagation delays of 13 ns and rise/fall times of 2.5 ns. It offers a minimum common-mode transient immunity of 60 kV/µs and functions across an extended temperature range from -40°C to +125°C. Packaged in a 16-SOIC surface-mount format, it meets AEC-Q100 qualification standards for automotive reliability.

Digital Isolators Feature Summary

• Automotive-grade qualification ensuring reliability under harsh operating conditions
• High-speed signal transmission with low propagation delay characteristics
• Robust noise immunity against high-frequency common-mode transients

Digital Isolators Applications

• Automotive telematics systems requiring isolated communication interfaces
• Advanced Driver Assistance Systems (ADAS) sensor isolation
• Inverter gate drive circuits in electric vehicle powertrains

Digital Isolators Procurement Notes

Verify the specific suffix 'EC' corresponds to the required tape-and-reel packaging configuration and moisture sensitivity level before procurement. Confirm that the 16-SOIC footprint matches the target PCB design constraints. Ensure the supplier provides valid traceability documentation for automotive-grade components. Cross-reference the datasheet revision date to confirm compatibility with current manufacturing processes. Validate that the component meets all relevant regional regulatory requirements for electronic equipment.

Digital Isolators Selection Notes

Select this component when high channel count isolation is required in space-constrained automotive environments. Compare performance metrics such as CMTI and propagation delay against alternative isolators to ensure system timing margins are met. Consider the thermal dissipation capabilities of the SOIC package relative to the expected power consumption. Evaluate the need for unidirectional versus bidirectional channels based on the specific signal flow requirements of the application circuit.

Digital Isolators Part Context

This part belongs to the Si86S6x family of automotive digital isolators designed for high-reliability applications. The series utilizes Skyworks' proprietary capacitive isolation technology to provide robust signal transmission without magnetic interference. Components in this family share similar pinouts and electrical characteristics, facilitating design scalability across different vehicle subsystems while maintaining consistent quality standards.

Digital Isolators Replacement Considerations

Publicly confirmed substitute part numbers for this specific variant are not available in the provided source material.