SI88643ED-AS

Overview

The SI88643ED-AS is a general-purpose digital isolator from Skyworks Solutions, housed in a 24-SOIC package. It features four unidirectional channels with a data rate of 100 Mb/s and an insulation voltage of 5000 Vrms. The device operates on a supply voltage between 3 V and 5.5 V, drawing 9.5 mA. Key timing parameters include an 18 ns propagation delay, 25 ns rise/fall times, and 4.5 ns pulse width distortion. It supports an operating temperature range from -40°C to +125°C.

Feature Summary

• Integrates four unidirectional signal channels for isolated data transmission
• Provides high common-mode transient immunity at 40 kV/µs
• Operates within a wide industrial temperature range up to 125°C

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing reliable signal separation
• General-purpose digital isolation in noisy environments

Procurement Notes

Verify the specific suffix 'AS' corresponds to tube packaging when ordering. Confirm that the component meets RoHS compliance requirements for your region. Check current availability status as distribution may be limited. Ensure the 24-SOIC footprint matches your PCB design constraints before finalizing procurement.

Selection Notes

Select this part for applications requiring four isolated channels without an integrated DC-DC converter. Compare against the SI88643ED-ISR if reel packaging or shutdown functionality is needed instead of tube packaging. Ensure the unidirectional channel configuration aligns with your circuit's signal flow requirements.

Part Context

This component belongs to the Si88643 series of digital isolators. It utilizes capacitive coupling technology to provide electrical isolation. The device is designed for robust performance in electrically noisy environments, offering high reliability for critical signal paths in various electronic systems.

Replacement Considerations

SI88643BC-IS is listed as a parameter equivalent alternative.