SI88242BD-AS

Digital Isolators Overview

The SI88242BD-AS is a Skyworks Solutions digital isolator featuring four isolated channels with an integrated DC-DC converter. It provides 5000Vrms isolation voltage and supports data rates up to 100Mbps. The device offers a common-mode transient immunity of 40kV/µs and operates within a supply voltage range of 3V to 5.5V. Propagation delays are typically 17.5ns for high-to-low and 12.6ns for low-to-high transitions. It is housed in a 20-SOIC package and functions across a temperature range of -40°C to 125°C.

Digital Isolators Feature Summary

• Integrates a high-efficiency DC-DC converter to provide isolated power, eliminating the need for external isolated supplies.
• Provides robust signal isolation with 5000Vrms insulation strength and 40kV/µs common-mode transient immunity.
• Delivers high-speed data transmission capabilities suitable for demanding automotive and industrial communication protocols.

Digital Isolators Applications

• Automotive battery management systems
• Electric vehicle charging stations
• Industrial motor control interfaces

Digital Isolators Procurement Notes

Verify the specific suffix ASR or AS against official Skyworks documentation to confirm packaging type and automotive qualification status. Ensure the selected variant matches the required channel count and isolation voltage ratings for the target application design constraints.

Digital Isolators Selection Notes

Select this component when an integrated isolated power source is required alongside multi-channel signal isolation. The built-in DC-DC converter simplifies board layout by removing external transformer requirements. Consider the 20-SOIC footprint and thermal performance for high-density automotive PCB designs.

Digital Isolators Part Context

This part belongs to the Si8824x family of automotive-grade digital isolators. It combines capacitive coupling technology with on-chip power conversion. The series is designed to meet stringent automotive reliability standards while providing high-speed data integrity in electric vehicle environments.

Digital Isolators Replacement Considerations

SI88242BC-IS is listed as a similar alternative within the same manufacturer portfolio. Verify pinout compatibility and electrical parameter equivalence before substitution.