SI86SM41EC-AS1

Digital Isolators Overview

The SI86SM41EC-AS1 is an automotive-grade digital isolator from Skyworks Solutions, featuring four unidirectional channels with SPI compatibility. It utilizes capacitive coupling technology to provide a 3.75 kVrms isolation voltage rating. The device supports data rates up to 150 Mbps and offers a common-mode transient immunity of 150 kV/µs. Packaged in a 16-pin SOIC-NB format, it includes a sleep mode for power optimization. The component operates within a temperature range suitable for automotive applications.

Digital Isolators Feature Summary

• Integrates four unidirectional signal paths compatible with SPI protocols
• Employs capacitive coupling for high-reliability galvanic isolation
• Includes a dedicated sleep mode to reduce active power consumption
• Rated for automotive environment durability and thermal stability

Digital Isolators Applications

• Automotive sensor interface circuits
• In-vehicle communication bus isolation
• Motor control system gate driving
• Battery management system monitoring

Digital Isolators Procurement Notes

Verify the specific suffix AS1 against the manufacturer's current datasheet to confirm pinout and electrical characteristics match your design requirements. Ensure the SOIC-NB-16 package dimensions align with your PCB footprint constraints. Confirm that the 3.75 kVrms isolation rating satisfies the safety standards required for your specific application zone. Check for any recent product change notices regarding material compliance or manufacturing site updates.

Digital Isolators Selection Notes

Select this component when SPI-compatible isolation is required for automotive systems. The 150 Mbps data rate supports high-speed signaling needs. The sleep mode feature is critical for battery-efficient designs. Verify that the 150 kV/µs CMTI rating is sufficient for noisy environments. Compare the 16-pin SOIC-NB package against available board space and thermal dissipation capabilities before finalizing the design.

Digital Isolators Part Context

This part belongs to the Si86SM4x series of automotive digital isolators. It shares the family's core capacitive isolation architecture but is optimized for low-power operation via its sleep function. The series is designed to meet stringent automotive reliability standards. Other variants in the family may differ in channel count, directionality, or isolation voltage ratings.

Digital Isolators Replacement Considerations

Check the Si86SS41EC-AS1 for similar SPI compatibility and channel count. Verify if the Si86SL41EC-AS1 meets the power budget despite lacking sleep mode. Ensure any substitute maintains the 16-pin SOIC-NB package and automotive qualification status.