SI86SO20EC-AS

Digital Isolators Overview

The SI86SO20EC-AS is a general-purpose digital isolator from Skyworks Solutions, utilizing capacitive coupling technology to provide galvanic isolation. It features two unidirectional channels with an inverting output configuration. The device supports data rates up to 150 Mbps and offers a high common-mode transient immunity of 150 kV/µs. It is rated for an isolation voltage of 3.75 kVrms and operates within an automotive temperature range of -40°C to 125°C. Packaged in an 8-SOIC (0.154 inch width) surface-mount package, it meets AEC-Q100 standards for automotive applications.

Digital Isolators Feature Summary

• Capacitive coupling technology provides robust galvanic isolation between input and output circuits.
• Automotive-grade qualification ensures reliability under demanding environmental conditions.
• High common-mode transient immunity protects against noise interference in noisy environments.

Digital Isolators Applications

• Automotive electronic control units requiring isolated communication interfaces
• Industrial systems needing reliable signal transmission across isolation barriers
• Inverter gate drive circuits for power electronics

Digital Isolators Procurement Notes

Verify the specific suffix 'EC' confirms the 3.75 kVrms rating and automotive grade. Confirm the 'AS' suffix matches the required tape-and-reel or tube packaging variant if applicable, though datasheets often list tube as standard. Ensure the manufacturer is Skyworks Solutions Inc. Cross-reference the Mouser or DigiKey part numbers for current availability status as distribution varies by region.

Digital Isolators Selection Notes

Select this component when a dual-channel isolator with inverting logic is required for automotive or industrial use. It is suitable for applications demanding 3.75 kVrms isolation strength and 150 Mbps data throughput. Consider the 8-SOIC package size for PCB layout constraints. Verify that the inverting output polarity aligns with the system's logic requirements compared to non-inverting alternatives.

Digital Isolators Part Context

This part belongs to the Si86SOxx series of automotive digital isolators. It complements other variants like the SI86SO20EE-AS which may offer different isolation ratings or packaging options. The series is designed to replace optocouplers in modern automotive and industrial designs, offering smaller size and lower power consumption while maintaining high reliability standards.

Digital Isolators Replacement Considerations

Direct replacements include the SI86SO20EE-AS, noting potential differences in isolation voltage ratings or packaging. Check pinout compatibility and logic inversion characteristics before substitution. Ensure any alternative meets the same AEC-Q100 automotive qualification requirements.

Digital Isolators FAQ

What is the common-mode transient immunity (CMTI) of the SI86SO20EC-AS?

The SI86SO20EC-AS has a common-mode transient immunity of 150 kV/µs.

Does the SI86SO20EC-AS have inverting or non-inverting outputs?

The SI86SO20EC-AS features inverting outputs for both channels.

Is the SI86SO20EC-AS qualified for automotive applications?

Yes, the SI86SO20EC-AS is AEC-Q100 qualified for automotive use.