SI8642EC-B-IS1

Digital Isolators Overview

The SI8642EC-B-IS1 is a Skyworks Solutions digital isolator featuring four independent channels in a 16-pin SOIC package. It provides 3750 Vrms isolation voltage and supports data rates up to 150 Mb/s with a propagation delay of 8 ns. The device operates on a supply voltage between 2.375 V and 5.5 V, consuming typical power of 275 mW. It includes two forward and two reverse channels, ensuring high common-mode transient immunity of 35 kV/µs across a temperature range of -40°C to +125°C.

Digital Isolators Feature Summary

• Capacitive coupling technology for robust signal transmission
• High common-mode transient immunity for noise rejection
• Integrated shutdown functionality for power management
• Wide operating temperature range for industrial reliability

Digital Isolators Applications

• Industrial automation control systems
• Medical equipment signal isolation
• Power metering and energy monitoring
• Inverter and motor drive interfaces

Digital Isolators Procurement Notes

Verify the specific suffix 'EC' against official Skyworks documentation to confirm pinout and insulation ratings. Ensure compatibility with the required isolation voltage standards for your application. Cross-reference the datasheet revision date to validate parameter accuracy before finalizing component selection.

Digital Isolators Selection Notes

Select this component when bidirectional or mixed-direction isolation is required within a single package. Compare channel count and isolation voltage against alternatives like the SI8642BC or SI8642BD variants. Consider the narrow SOIC footprint constraints and thermal dissipation requirements during PCB layout planning.

Digital Isolators Part Context

This part belongs to the Si864x family of capacitive digital isolators from Skyworks Solutions. It shares architectural similarities with other members like the SI8642BC-B-IS1 but differs in specific insulation certifications and package variations. The family is designed for general-purpose isolation in noisy environments.

Digital Isolators Replacement Considerations

Official substitutes include SI8642BC-B-IS1 and SI8642BD-B-IS. Verify that replacement parts match the 3750 Vrms rating and 150 Mb/s speed. Check for identical pin configurations to ensure direct board compatibility without redesign.