SI88242EC-ASR

Digital Isolators Overview

The SI88242EC-ASR is an automotive-grade digital isolator from Skyworks Solutions, featuring four independent channels with an integrated isolated DC-DC converter. It provides 3750Vrms isolation voltage and supports data rates up to 100Mbps. The device utilizes capacitive coupling technology for signal transmission. It operates within a supply voltage range of 3V to 5.5V and functions across an extended temperature range of -40°C to 125°C. The component is housed in a 20-SOIC package (0.295" width) and offers a common-mode transient immunity of 40kV/µs.

Digital Isolators Feature Summary

• Integrates an isolated DC-DC power converter to eliminate the need for external isolated power supplies
• Provides high common-mode transient immunity for reliable operation in noisy environments
• Designed specifically for automotive applications meeting rigorous reliability standards

Digital Isolators Applications

• Automotive battery management systems
• Electric vehicle motor control inverters
• On-board charging systems
• Automotive gateway modules

Digital Isolators Procurement Notes

Verify the specific suffix ASR indicates the reel packaging configuration when ordering. Confirm that the automotive grade designation aligns with project requirements. Ensure the integrated DC-DC converter specifications meet the target application's power needs. Check current availability status as supply constraints may affect lead times. Validate pinout compatibility during integration planning.

Digital Isolators Selection Notes

Select this component when an integrated isolated power source is required alongside signal isolation. The 4-channel configuration suits complex interfaces requiring multiple isolated signals. Consider the 3750Vrms isolation rating for safety-critical automotive circuits. Evaluate the 100Mbps data rate against system communication speed requirements. Assess thermal performance within the specified -40°C to 125°C operating range.

Digital Isolators Part Context

This part belongs to the Si8824x family of automotive digital isolators. It distinguishes itself by including an on-chip isolated DC-DC converter, reducing bill-of-materials complexity. The EC suffix denotes the automotive grade qualification. The ASR suffix specifies the tape-and-reel packaging format for automated assembly processes.

Digital Isolators Replacement Considerations

SI88242BC-IS is listed as a similar alternative within the same product family.