SI88222BC-AS

Digital Isolators Overview

The SI88222BC-AS is a dual-channel digital isolator manufactured by Skyworks Solutions Inc., featuring an integrated DC-DC converter. It provides 5000Vrms isolation voltage and supports data rates up to 100Mbps with a common-mode transient immunity of 40kV/µs. The device operates on a single supply voltage range of 3V to 5.5V and is housed in a 16-SOIC package (0.295" width). Designed for automotive applications, it meets AEC-Q100 standards and functions within a temperature range of -40°C to 125°C.

Digital Isolators Feature Summary

• Integrates a high-efficiency DC-DC converter to provide isolated power without external components
• Provides robust capacitive coupling isolation with 5000Vrms safety rating
• Supports unidirectional signal transmission across two independent channels
• Automotive-grade qualification ensures reliability in harsh operating environments

Digital Isolators Applications

• Automotive battery management systems
• Motor control inverters
• Industrial programmable logic controllers
• Isolated gate driver interfaces

Digital Isolators Procurement Notes

Verify the specific suffix 'AS' corresponds to tube packaging rather than tape-and-reel variants like 'ASR'. Confirm that the integrated DC-DC converter functionality is required for the design, as this distinguishes it from non-powered isolator variants. Ensure the 16-SOIC footprint matches the PCB layout constraints. Check for any recent product change notices regarding pinout or electrical characteristics updates.

Digital Isolators Selection Notes

Select this component when an isolated power source is needed alongside signal isolation to reduce bill-of-materials count. The integrated DC-DC converter eliminates the need for external isolated power supplies. Consider the 100Mbps data rate sufficient for the application's communication speed. Verify that the 40kV/µs CMTI meets the noise immunity requirements of the system environment.

Digital Isolators Part Context

This part belongs to the Si8822x ISOvolt family, which combines digital isolation with integrated power conversion. Unlike standard isolators, these devices include an on-chip DC-DC converter, simplifying system design by removing the requirement for separate isolated power modules. The family targets high-reliability applications requiring both signal integrity and power isolation in a compact form factor.

Digital Isolators Replacement Considerations

Direct substitutes may include other Skyworks Si8822x variants with different packaging options such as SI88222BC-ASR. Cross-brand replacements require verifying equivalent isolation voltage, data rate, and CMTI specifications. Ensure any alternative also includes an integrated DC-DC converter if space-saving is critical.