SI86SM42BC-AS1

Digital Isolators Overview

The SI86SM42BC-AS1 is an automotive-grade digital isolator from the Si86SM4x series, manufactured by Skyworks Solutions. It features four unidirectional channels with capacitive coupling isolation technology. The device provides a basic insulation voltage of 3.75 kVrms and operates within a supply voltage range of 2.5 V to 5.5 V. It supports data rates up to 150 Mb/s with a typical propagation delay of 8 ns. The component is housed in a 16-pin SOIC-NB package and is qualified under AEC-Q100 standards for automotive applications.

Digital Isolators Feature Summary

• Integrates a dedicated sleep mode function to significantly reduce power consumption during idle periods.
• Utilizes capacitive coupling technology to provide robust signal isolation between circuit domains.
• Designed specifically for automotive environments with compliance to AEC-Q100 reliability standards.

Digital Isolators Applications

• Automotive battery management systems
• Electric vehicle charging infrastructure
• Inverter control circuits

Digital Isolators Procurement Notes

Verify the specific suffix AS1 against the manufacturer's official documentation to ensure correct packaging and tape-and-reel specifications. Confirm that the automotive qualification status meets the project's reliability requirements. Check for any recent product change notices regarding pinout or electrical characteristics before finalizing procurement plans.

Digital Isolators Selection Notes

Select this component when low standby power is critical alongside high-voltage isolation in automotive designs. The unidirectional channel configuration suits applications where signal flow is strictly one-way. Ensure the system voltage levels are compatible with the 2.5 V to 5.5 V operating range. Consider the SOIC-NB package dimensions for PCB layout constraints.

Digital Isolators Part Context

This part belongs to the Si86SM4x family of automotive digital isolators. It complements other Skyworks isolation products by offering specialized power-saving features. The family shares common interface protocols but varies in channel count and insulation ratings. This specific model focuses on unidirectional data transmission for safety-critical automotive subsystems.

Digital Isolators Replacement Considerations

Check Skyworks datasheets for direct replacements within the Si86SM4x series. Verify if alternative suffixes offer different packaging options without changing functionality. Cross-reference pinouts with similar automotive isolators if sourcing alternatives.