SI8384PS-IU

Digital Isolators Overview

The SI8384PS-IU is an 8-channel digital isolator from the Si838x series, designed for Programmable Logic Controller (PLC) input isolation. It features a QSOP-20 package with a 2.5 kV RMS insulation voltage and capacitive coupling technology. The device supports data rates up to 2 Mbps and operates on a supply voltage range of 2.25 V to 5.5 V. It integrates four high-speed channels with programmable debounce capabilities, providing robust noise immunity with a typical Common Mode Transient Immunity (CMTI) of 50 kV/μs.

Digital Isolators Feature Summary

• Integrates eight channels in a single compact package to reduce board space
• Offers dual-polarity input flexibility supporting both sourcing and sinking configurations
• Provides high-speed signal transmission suitable for servo motor control applications
• Includes programmable debounce functionality accessible via SPI interface

Digital Isolators Applications

• Programmable Logic Controller (PLC) input modules
• Industrial I/O module isolation
• Servo motor control systems

Digital Isolators Procurement Notes

Verify the specific suffix 'PS-IU' corresponds to the QSOP-20 package variant when ordering. Confirm that the required channel configuration matches the internal layout of four high-speed channels with debounce and four standard channels. Ensure system design accounts for the 2.25 V to 5.5 V operating voltage range and SPI programming requirements for debounce settings.

Digital Isolators Selection Notes

Select this component for designs requiring high channel density and flexible input polarity in industrial environments. It serves as a direct replacement for optical couplers where lower power consumption and higher reliability are needed. Consider the SPI interface capability if programmable debounce timing is necessary for noisy PLC inputs.

Digital Isolators Part Context

This part belongs to the Si838x family of multi-channel digital isolators developed by Skyworks Solutions. The family targets industrial automation, offering integrated solutions that replace traditional optocoupler arrays. These devices utilize CMOS-based capacitive coupling technology to provide enhanced performance over legacy isolation methods.

Digital Isolators Replacement Considerations

Direct substitutes within the same family include SI8380PS-IU and SI8384PF-IUR. Verify pinout compatibility and channel speed specifications before swapping between variants.