SI88340ED-ASR

Digital Isolators Overview

The SI88340ED-ASR is a unidirectional digital isolator from the Si88340 series, manufactured by Skyworks Solutions. It features four forward channels with zero reverse channels, housed in an SOIC-24 package. The device supports data rates up to 100 Mb/s and provides an insulation voltage of 5000 Vrms. Operating on a supply voltage between 3 V and 5.5 V, it draws 13.3 mA of working current. Key timing parameters include an 18 ns propagation delay, 2.5 ns rise/fall times, and 4.5 ns pulse width distortion. It functions within a temperature range of -40°C to +125°C without a shutdown feature.

Digital Isolators Feature Summary

• Provides galvanic isolation for high-speed digital signals using capacitive coupling technology.
• Supports unidirectional data transmission across four independent channels simultaneously.
• Operates reliably across extended industrial temperature ranges without requiring external shutdown control.

Digital Isolators Applications

• Industrial automation systems requiring robust signal isolation
• Medical equipment needing high-voltage safety barriers
• Power electronics interfaces for motor drives

Digital Isolators Procurement Notes

Verify the specific suffix ASR indicates reel packaging when sourcing components. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure design compatibility with SOIC-24 footprint dimensions and thermal requirements. Check for any recent product change notices that may affect long-term availability or pinout consistency.

Digital Isolators Selection Notes

Choose this component when unidirectional isolation is sufficient for the application architecture. The four-channel configuration simplifies board layout compared to multiple single-channel devices. Consider the 13.3 mA power consumption against system efficiency targets. Validate that the 5000 Vrms insulation rating meets the specific safety standards required for the target market.

Digital Isolators Part Context

This part belongs to the Si8834x family of digital isolators, which utilizes Skyworks' proprietary capacitive isolation technology. The family offers various channel configurations and packaging options to suit different interface needs. The SI88340ED-ASR specifically addresses applications requiring four-channel unidirectional isolation in a compact surface-mount form factor.

Digital Isolators Replacement Considerations

Consult official Skyworks substitution guides for verified alternatives. Generic replacements may not match the specific timing characteristics or insulation ratings. Verify pin-to-pin compatibility if direct swap is required without PCB redesign.