SI88422BC-IS

Overview

The SI88422BC-IS is a general-purpose digital isolator manufactured by Skyworks Solutions Inc. It features two unidirectional channels with a data rate of 100 Mb/s and an isolation voltage of 5000 Vrms. The device operates within a supply voltage range of 3 V to 5.5 V and exhibits a propagation delay of 18 ns. It supports a common-mode transient immunity of 40 kV/µs and functions across a temperature range of -40°C to +125°C. The component is housed in a 16-SOIC package.

Feature Summary

• Integrates high-voltage capacitive coupling for robust signal isolation
• Includes an integrated DC-DC converter for isolated power generation
• Provides bidirectional communication capability through unidirectional channel configuration

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing high-reliability signal separation
• Power electronics interfaces for motor control applications

Procurement Notes

Verify the specific suffix designation against official Skyworks documentation to confirm pinout compatibility and electrical characteristics. Ensure the selected variant matches the required isolation voltage and packaging style for your design. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and current production status before finalizing procurement plans.

Selection Notes

Select this component when designing circuits that require integrated power isolation alongside signal transmission. The built-in DC-DC converter simplifies board layout by eliminating external isolated power supplies. Consider the 16-SOIC footprint for space-constrained applications. Verify thermal management requirements given the operating temperature range and power dissipation specifications.

Part Context

This part belongs to the Si884xx family of digital isolators from Skyworks Solutions. These devices are designed to replace traditional optocouplers in modern electronic designs. The family offers improved performance metrics including higher data rates and lower power consumption compared to legacy isolation technologies.

Replacement Considerations

SI88422BC-AS is a similar variant within the same series but lacks the integrated DC-DC converter functionality.