SI86S642FE-AS2

Digital Isolators Overview

The SI86S642FE-AS2 is a Skyworks Solutions automotive-grade digital isolator featuring four unidirectional channels with capacitive coupling technology. It provides a 6.0 kVrms isolation voltage rating and supports data rates up to 150 Mbps. The device operates within a supply voltage range of 2.375 V to 5.5 V, drawing a typical quiescent current of 4.4 mA per channel. It exhibits a propagation delay of 8 ns and offers common-mode transient immunity of 150 kV/µs. Packaged in a 16-pin SOIC-WB wide-body format, it is designed for high-reliability applications requiring robust galvanic isolation.

Digital Isolators Feature Summary

• Provides galvanic isolation between microcontrollers and peripheral devices using capacitive coupling technology
• Engineered specifically for automotive applications meeting rigorous reliability standards
• Features four independent unidirectional signal paths for efficient system integration

Digital Isolators Applications

• Isolating microcontrollers from peripheral devices in automotive systems
• Gate driver circuits for power electronics
• Industrial communication interfaces requiring high noise immunity

Digital Isolators Procurement Notes

Verify the specific suffix AS2 against official Skyworks documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with your board layout requirements for the SOIC-WB-16 footprint. Confirm that the 6.0 kVrms isolation rating meets your system's safety clearance and creepage distances. Validate that the operating temperature range aligns with your environmental constraints.

Digital Isolators Selection Notes

Select this component when four-channel unidirectional isolation is required with a 6.0 kVrms rating. It is suitable for designs needing 150 Mbps data throughput and low propagation delay. Consider the SOIC-WB-16 package for enhanced creepage distance compared to standard packages. Ensure the application benefits from the automotive qualification and high common-mode transient immunity provided by this series.

Digital Isolators Part Context

This part belongs to the Si86S6x family of automotive digital isolators from Skyworks Solutions. These devices utilize proprietary capacitive isolation technology to provide reliable signal transmission across isolation barriers. The family includes variants with different channel counts and isolation ratings, all sharing similar core performance characteristics and packaging options for consistent design implementation.

Digital Isolators Replacement Considerations

Check Skyworks datasheets for direct pin-compatible alternatives within the Si86S6x series, such as the SI86S642EE-AS2R or SI86S642HC-AS1, depending on required isolation voltage and packaging preferences. Verify that any substitute maintains the same 150 Mbps data rate and 150 kV/µs CMTI specifications.