SI8642AB-AS1

Digital Isolators Overview

The Skyworks SI8642AB-AS1 is a four-channel digital isolator operating at a maximum data rate of 1 Mbps. It features a 2.5 kVrms isolation voltage and utilizes capacitive coupling technology within a 16-pin SOIC package. The device supports a supply voltage range up to 5.5 V, with a typical quiescent current of 6.6 mA per channel. It exhibits a propagation delay of 35 ns and operates reliably across an extended temperature range from -40 °C to +125 °C.

Digital Isolators Feature Summary

• Provides galvanic isolation between circuits using high-reliability capacitive coupling technology.
• Offers four independent unidirectional signal channels for versatile interface applications.
• Ensures signal integrity with low propagation delay and minimal pulse width distortion.

Digital Isolators Applications

• Industrial automation control systems
• Medical equipment signal isolation
• Power metering and energy monitoring

Digital Isolators Procurement Notes

Verify the specific suffix AS1 against official Skyworks documentation to confirm pinout and packaging details. Ensure compatibility with system voltage levels and thermal requirements before integration. Cross-reference part numbers with authorized distributors to avoid counterfeit components.

Digital Isolators Selection Notes

Select this component when a lower data rate of 1 Mbps is sufficient for cost-sensitive applications requiring robust isolation. Compare against higher-speed variants in the Si864x family if bandwidth requirements exceed 1 Mbps. Consider the SOIC package constraints for PCB layout and thermal management.

Digital Isolators Part Context

This device belongs to the Si86xx family of digital isolators from Skyworks Solutions. It shares architectural similarities with other members like the SI8642BA but differs in speed and isolation ratings. The family is designed for replacing traditional optocouplers in modern electronic designs.

Digital Isolators Replacement Considerations

Direct replacements include other SKYWORKS-SI8642AB-AS1 units or verified equivalents within the same series. Check datasheets for pin-to-pin compatibility and electrical parameter alignment before substitution.