SI8642BC-AS1

Digital Isolators Overview

The SI8642BC-AS1 is a low-power, quad-channel digital isolator from Skyworks Solutions. It features capacitive coupling technology for signal transmission across isolation barriers. The device supports data rates up to 150 Mbps with a propagation delay of 8 ns. It operates on a supply voltage range of 2.375 V to 5.5 V and draws a typical quiescent current of 6.1 mA per channel. The component provides an insulation voltage of 3750 Vrms and is qualified under AEC-Q100 standards for automotive applications. It functions within a temperature range of -40°C to +125°C.

Digital Isolators Feature Summary

• Capacitive coupling technology ensures high reliability and immunity to magnetic fields
• Quad-channel unidirectional configuration simplifies board layout
• AEC-Q100 qualification supports automotive system integration
• Low power consumption enables efficient thermal management

Digital Isolators Applications

• Automotive infotainment systems
• Body control modules
• Industrial communication interfaces
• Medical equipment isolation

Digital Isolators Procurement Notes

Verify the specific suffix AS1 against the official Skyworks datasheet to confirm package type and tape-and-reel specifications. Ensure the ordering part number matches the required isolation voltage rating and channel directionality. Cross-reference the manufacturer's latest documentation for any updates to RoHS compliance or environmental declarations before finalizing procurement orders.

Digital Isolators Selection Notes

Select this component when a quad-channel solution with 150 Mbps speed is required in a compact SOIC-16 package. It is suitable for designs needing 3750 Vrms isolation without bidirectional feedback channels. Consider the 6.1 mA per channel current draw for power budget calculations. Verify that the unidirectional nature aligns with the signal flow requirements of the target application circuit.

Digital Isolators Part Context

This part belongs to the Si864x family of digital isolators, which utilizes Skyworks' proprietary capacitive isolation technology. The family offers various channel counts and isolation ratings. The SI8642BC-AS1 specifically targets applications requiring four isolated channels with moderate speed and low power consumption, fitting into the broader interface IC portfolio for robust signal transmission.

Digital Isolators Replacement Considerations

Check Skyworks documentation for direct pin-compatible alternatives within the Si864x series. Verify if higher isolation ratings or bidirectional variants are needed for system upgrades. Ensure any substitute maintains the same AEC-Q100 qualification status if used in automotive contexts.