SI8452AB-B-IS1

Overview

The SI8452AB-B-IS1 is a Skyworks Solutions digital isolator featuring five channels with three forward and two reverse directions. It operates within a voltage range of 2.7 V to 5.5 V and supports data rates up to 1 Mbps. The device provides an insulation voltage of 2500 Vrms and exhibits a typical common-mode transient immunity of 25 kV/µs. Propagation delay is specified at 35 ns maximum. It utilizes capacitive coupling isolation technology and is housed in a 16-pin SOIC-Narrow package.

Feature Summary

• Provides galvanic isolation between circuits using capacitive coupling technology
• Supports unidirectional signal transmission across multiple independent channels
• Offers high common-mode transient immunity for noise-sensitive environments

Applications

• General-purpose digital isolation in industrial systems
• Isolation for microcontroller interfaces
• Signal isolation in measurement and control equipment

Procurement Notes

Verify the component status as NRND (Not Recommended for New Designs) before procurement. Confirm that the 16-SOIC package dimensions match your PCB footprint requirements. Ensure supply chain sources provide authentic Skyworks Solutions Inc. products to avoid counterfeit components. Check for RoHS compliance documentation if required by your manufacturing standards.

Selection Notes

Select this component when moderate speed isolation is sufficient for bidirectional or unidirectional data transfer. Consider the 2500 Vrms isolation rating against system safety requirements. Evaluate the 1 Mbps data rate capability against signal timing constraints. Compare power consumption and propagation delay specifications with alternative isolators if lower latency is critical.

Part Context

This part belongs to the SI84xx series of digital isolators from Skyworks Solutions. These devices are designed to replace traditional optocouplers in various applications. The series offers improved performance in terms of speed, power consumption, and reliability compared to legacy isolation technologies.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.