SI88440BC-ISR

Digital Isolators Overview

The SI88440BC-ISR is a quad digital isolator from Skyworks Solutions, housed in a 20-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, exhibiting a propagation delay of 18 ns. It utilizes capacitive coupling for isolation and supports general-purpose applications.

Digital Isolators Feature Summary

• Integrates four independent unidirectional signal paths within a single compact package.
• Provides high-voltage isolation capability using robust capacitive coupling technology.
• Supports high-speed data transmission rates suitable for demanding interface requirements.

Digital Isolators Applications

• General-purpose digital isolation interfaces
• Industrial control system signal conditioning
• Power electronics monitoring circuits

Digital Isolators Procurement Notes

Verify the specific suffix 'BC' to confirm the reel packaging configuration and ensure compatibility with automated assembly processes. Confirm that the 5000 Vrms insulation rating meets the safety isolation requirements of the target application environment. Check for any recent product change notices regarding manufacturing updates or material composition changes.

Digital Isolators Selection Notes

Select this component when four isolated channels are required without bidirectional support. Ensure the operating temperature range of -40°C to +125°C aligns with the environmental conditions. Verify that the SOIC-Wide footprint fits the available PCB space constraints compared to smaller packages.

Digital Isolators Part Context

This part belongs to the Si8844x series of quad digital isolators. These devices combine proven isolation technology with integrated circuit functionality. The series is designed to replace traditional transformer and optocoupler solutions in modern electronic designs requiring reliable signal transmission across potential barriers.

Digital Isolators Replacement Considerations

Public confirmed substitute part numbers are not provided in the source documentation. Consult official Skyworks Solutions documentation for current recommended alternatives or obsolescence notices.