SI88441ED-IS

Overview

The SI88441ED-IS is a Skyworks Solutions digital isolator featuring four channels with an integrated DC-DC converter. It provides 5000 Vrms isolation and supports data rates up to 100 Mb/s. The device operates on a supply voltage range of 3 V to 5.5 V, drawing 12 mA of operating current. Key electrical parameters include an 18 ns propagation delay, 2.5 ns rise/fall times, and 7 ns pulse width distortion. It is housed in a SOIC-Wide-20 package and functions within a temperature range of -40°C to +125°C.

Feature Summary

• Integrates a high-voltage isolated DC-DC converter for power delivery across the isolation barrier
• Utilizes capacitive coupling technology for signal transmission
• Provides unidirectional channel configuration with shutdown capability

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing high-voltage safety compliance
• Power electronics interfaces such as motor drives and inverters

Procurement Notes

Verify the specific suffix 'IS' corresponds to the SOIC-Wide-20 reel packaging and integrated DC-DC variant. Confirm RoHS compliance status through official documentation. Check for AEC-Q100 qualification if automotive application is intended, as this may vary by sub-part number. Ensure lead time and availability are validated directly with the manufacturer or authorized distributors due to potential supply constraints.

Selection Notes

Select this component when high isolation voltage (5kV) and integrated power conversion are required in a single package. Compare channel configurations against other Si8844x variants to match input/output pinout requirements. Consider the 100 Mb/s data rate limit and 18 ns delay for timing-sensitive designs. Evaluate thermal performance given the 2.27 W power dissipation rating in the SOIC-Wide-20 form factor.

Part Context

This part belongs to the Si8844x family of digital isolators from Skyworks Solutions. It shares architectural similarities with parts like the SI88440EC-IS and SI88442ED-IS but differs in channel count and isolation voltage ratings. The 'ED' indicates the wide body package, while 'IS' denotes the reel packaging and specific feature set including the integrated DC-DC converter.

Replacement Considerations

SI88441ED-AS: Similar function but tube packaged without integrated DC-DC. SI88441ED-ISR: Same functional specifications but different reel packaging quantity. Verify pin compatibility and isolation voltage ratings before substitution.