SI86SM40EE-AS2

Digital Isolators Overview

The SI86SM40EE-AS2 is a digital isolator from Skyworks Solutions, featuring four unidirectional channels with SPI compatibility. It utilizes capacitive coupling technology to provide an isolation voltage of 6.0 kVrms. The device operates within a wide temperature range and supports data rates up to 150 Mbps. It includes a sleep mode for power efficiency and offers high common-mode transient immunity of 150 kV/µs. Packaged in a 16-pin SOIC-WB format, it is designed for automotive applications requiring robust signal integrity across isolated boundaries.

Digital Isolators Feature Summary

• Capacitive coupling isolation architecture
• Integrated low-power sleep mode
• SPI interface compatibility
• Automotive-grade reliability

Digital Isolators Applications

• Automotive battery management systems
• Inverter control circuits
• Motor drive interfaces
• On-board charger communication

Digital Isolators Procurement Notes

Verify the specific suffix AS2 against official Skyworks documentation to confirm automotive qualification status. Ensure the SOIC-WB package dimensions match the target PCB footprint requirements. Cross-reference the datasheet revision date to validate parameter accuracy before finalizing component selection for production.

Digital Isolators Selection Notes

Select this component when high isolation voltage and low power consumption are critical. The sleep mode feature distinguishes it from standard isolators by reducing quiescent current during idle states. Verify that the 150 Mbps data rate meets the system timing requirements. Confirm compatibility with the target logic voltage levels on both sides of the isolation barrier.

Digital Isolators Part Context

This part belongs to the Si86SM4x series of multi-channel digital isolators. It shares the same core isolation technology as other members but is optimized for automotive environments. The series emphasizes energy efficiency through advanced sleep modes while maintaining high-speed data transmission capabilities required in modern vehicle electronics.

Digital Isolators Replacement Considerations

Check Skyworks documentation for direct pin-compatible alternatives within the Si86S6x or Si86SS4x families. Ensure any substitute maintains the 6.0 kVrms isolation rating and automotive AEC-Q100 certification if required by the design specifications.