SI3453-B02-GMR

Overview

The SI3453-B02-GMR is a four-channel Power Over Ethernet (PoE) controller manufactured by Skyworks Solutions Inc. It supports IEEE 802.3at (PoE+) and 802.3af (PoE) standards for robust power delivery in network applications. The device integrates classification, detection, and power management functions across four independent channels. It is housed in a compact 40-QFN package measuring 6x6 mm, suitable for space-constrained designs requiring high-density port configurations.

Feature Summary

• Supports dual standard compliance for both PoE and PoE+ power delivery protocols
• Integrates four independent channels for simultaneous endpoint management
• Provides comprehensive classification and detection logic for safe power negotiation

Applications

• Network switch endpoints requiring multi-port power distribution
• Wireless access points needing compliant power sourcing equipment integration
• IP camera systems utilizing standardized PoE infrastructure

Procurement Notes

Verify the specific suffix B02 against the manufacturer's current datasheet to ensure pinout and configuration match your design requirements. Confirm RoHS compliance status through official documentation before finalizing procurement. Check for any recent Product Change Notifications that may affect lead times or material composition.

Selection Notes

Select this component when designing systems requiring four isolated PoE channels within a single integrated circuit. Ensure the host microcontroller can interface with the control pins for status monitoring and configuration. Verify that the thermal performance of the 40-QFN package meets the system's heat dissipation needs under maximum load conditions.

Part Context

This part belongs to Skyworks' Power Over Ethernet controller portfolio, designed to simplify the implementation of powered devices in modern networking infrastructure. It replaces discrete solutions by integrating multiple protection and control stages into a single chip, reducing board space and component count for manufacturers.

Replacement Considerations

Consult the official Skyworks substitution guide for verified alternatives. Generic replacements may lack specific pin compatibility or regulatory certifications required for PoE applications.