SI88240EC-ASR

Overview

The SI88240EC-ASR is a Skyworks Solutions digital isolator featuring four unidirectional channels with an integrated DC-DC converter. It operates within a supply voltage range of 3 V to 5.5 V and supports data rates up to 100 Mb/s. The device provides 3750 Vrms isolation voltage and exhibits a typical propagation delay of 18 ns. It is housed in a 20-SOIC package and functions reliably across a temperature range of -40°C to +125°C.

Feature Summary

• Integrates a high-efficiency DC-DC converter for isolated power generation
• Provides robust capacitive coupling isolation technology
• Supports high-speed data transmission at 100 Mb/s
• Features unidirectional signal path configuration

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing reliable signal separation
• Power electronics control circuits
• Communication interfaces with ground potential differences

Procurement Notes

Verify the specific suffix ASR against official Skyworks documentation to confirm reel packaging specifications. Ensure compatibility with required isolation voltage ratings and operating temperature ranges for your specific application environment before finalizing procurement decisions.

Selection Notes

Select this component when a single-chip solution combining isolation and isolated power is required. Consider the 20-SOIC footprint for PCB layout constraints. Verify that the 3750 Vrms rating meets system safety standards and that the 100 Mb/s speed suffices for the intended data interface requirements.

Part Context

This part belongs to the Si88x4x family of digital isolators from Skyworks Solutions. These devices are designed to replace traditional optocouplers, offering superior performance in terms of speed, power consumption, and reliability. The family includes variants with and without integrated DC-DC converters.

Replacement Considerations

Check Skyworks datasheets for direct pin-compatible alternatives within the Si88x4x series. Verify if non-isolated versions or different channel counts better suit the design. Confirm that any substitute maintains the same isolation voltage and thermal characteristics.