SI8642ED-B-YS0

Digital Isolators Overview

The SI8642ED-B-YS0 is a four-channel digital isolator from the Si864x series, utilizing capacitive coupling technology for galvanic isolation. It supports data rates up to 150 Mbps with a propagation delay of 8 ns and common-mode transient immunity of 35 kV/µs. The device operates on a supply voltage range of 2.375 V to 5.5 V, drawing a typical operating current of 4.4 mA. It features an insulation voltage of 5000 Vrms and functions within a temperature range of -40°C to +125°C. Packaged in a 16-pin SOIC, it is AEC-Q100 qualified for automotive applications.

Digital Isolators Feature Summary

• Provides galvanic isolation between different voltage domains using capacitive coupling technology
• Supports high-speed data transmission with 150 Mbps data rate capability
• Features robust common-mode transient immunity for noise rejection
• Qualified for automotive applications under AEC-Q100 standards

Digital Isolators Applications

• Automotive electronic control units requiring isolated communication
• Industrial automation systems needing reliable signal isolation
• Medical equipment requiring safe patient isolation barriers

Digital Isolators Procurement Notes

Verify the specific suffix 'B-YS0' against official Skyworks documentation to confirm pinout and package dimensions. Confirm AEC-Q100 qualification status if automotive compliance is required. Check for end-of-life notifications as some variants in this series may be restricted for new designs. Ensure compatibility with existing PCB footprints before procurement.

Digital Isolators Selection Notes

Select this component when high-speed isolation is required alongside automotive reliability. Compare propagation delay and power consumption against other Si864x variants. Verify that the 5000 Vrms insulation rating meets system safety requirements. Consider the 16-SOIC package constraints for board space limitations.

Digital Isolators Part Context

This part belongs to the Si864x family of digital isolators, which are designed for general-purpose isolation tasks. The family offers various channel configurations and insulation ratings. The SI8642ED variant specifically provides four unidirectional channels with high-speed performance suitable for demanding industrial and automotive environments.

Digital Isolators Replacement Considerations

Check Skyworks datasheets for direct pin-compatible replacements within the Si864x series. Verify equivalent insulation voltage and data rate specifications. Ensure any substitute maintains AEC-Q100 qualification if used in automotive contexts.