SI88241EC-IS

Digital Isolators Overview

The SI88241EC-IS is a high-speed digital isolator from Skyworks Solutions, featuring four independent channels with an integrated DC-DC converter. It provides 3750 Vrms isolation voltage and supports data rates up to 100 Mb/s. The device utilizes capacitive coupling technology for signal transmission across the isolation barrier. Key electrical parameters include a maximum propagation delay of 18 ns and a common-mode transient immunity of 40 kV/µs. It operates within a supply voltage range of 3 V to 5.5 V and is housed in a 20-SOIC package.

Digital Isolators Feature Summary

• Integrates a user-adjustable frequency DC-DC converter with soft-start functionality to minimize emissions and ensure safety.
• Provides four unidirectional digital channels with high common-mode transient immunity for reliable noise rejection.
• Utilizes capacitive coupling technology to achieve robust signal isolation without magnetic components.

Digital Isolators Applications

• Industrial automation systems requiring galvanic isolation
• Power supply control circuits
• Medical equipment isolation interfaces
• General-purpose isolated communication links

Digital Isolators Procurement Notes

Verify the specific suffix 'IS' against the official Skyworks datasheet to confirm the package type and tape-and-reel configuration. Ensure the required isolation voltage rating of 3750 Vrms meets the system design specifications. Confirm that the integrated DC-DC converter requirements align with the application's power budget and emission constraints before finalizing the procurement order.

Digital Isolators Selection Notes

Select this component when a single-chip solution combining multiple digital isolators and a DC-DC converter is required. It is suitable for designs needing high CMTI and adjustable switching frequencies to reduce EMI. Consider the 20-SOIC footprint and thermal dissipation characteristics during PCB layout planning.

Digital Isolators Part Context

This part belongs to the Si8824x family of digital isolators from Skyworks Solutions. These devices are designed to replace traditional optocouplers in modern applications, offering superior performance in speed, reliability, and size. The family includes variants with different channel counts and isolation ratings.

Digital Isolators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing designs by comparing pinout, electrical characteristics, and isolation ratings with alternative Skyworks models such as the SI88241ED series.