SI8384PM-IU

Digital Isolators Overview

The SI8384PM-IU is an eight-channel digital isolator from Skyworks Solutions, designed for Programmable Logic Controller (PLC) applications. It features a 2.5 kV RMS safety isolation rating and integrates up to eight channels in a single package. The device supports high-speed data transmission with rates up to 2 Mbps and offers a typical Common-Mode Transient Immunity (CMTI) of 50 kV/μs. Operating voltage ranges from 2.25 V to 5.5 V, ensuring compatibility with low-power processors. The component utilizes capacitive coupling technology to provide robust signal isolation between input and output domains.

Digital Isolators Feature Summary

• Integrates up to eight isolated channels within a compact single package to reduce board space
• Provides high-speed data transmission capabilities suitable for servo motor control applications
• Features high common-mode transient immunity to ensure reliable operation in noisy environments
• Supports flexible dual-polarity input configurations for both sourcing and sinking current

Digital Isolators Applications

• Programmable Logic Controller (PLC) input modules
• Servo motor control systems
• Computer Numerical Control (CNC) machinery interfaces

Digital Isolators Procurement Notes

Verify the specific suffix against official Skyworks documentation to confirm pinout and electrical characteristics. Ensure the selected variant matches the required channel count and isolation voltage ratings for the target industrial application. Cross-reference the datasheet revision date to guarantee compliance with current design standards and availability constraints.

Digital Isolators Selection Notes

Select this component when high channel density and fast response times are critical for PLC I/O designs. The integrated SPI interface capability allows daisy-chaining multiple units to expand channel counts efficiently. Consider the 2.25 V to 5.5 V operating range for compatibility with various processor logic levels and power supply architectures in embedded systems.

Digital Isolators Part Context

This part belongs to the Si838x series of ISOvolt digital isolators, which replace traditional optocouplers in industrial settings. The series emphasizes reduced size, lower power consumption, and enhanced reliability compared to legacy solutions. It represents Skyworks' CMOS-based approach to galvanic isolation, targeting demanding environments requiring high noise immunity and precise timing.

Digital Isolators Replacement Considerations

Direct replacements include other members of the Si838x family, such as the SI8380PS-IU or SI8384PM-IU variants, depending on specific channel configuration needs. Verify pin compatibility and isolation ratings before substitution to maintain system integrity and performance specifications.

Digital Isolators FAQ

What is the maximum data rate supported by the SI8384PM-IU?

The device supports data rates up to 2 Mbps, facilitating high-speed communication in industrial control applications.

How many isolated channels are integrated into the SI8384PM-IU package?

The SI8384PM-IU integrates eight independent isolated channels within a single package.