SI3452-B02-GMR

Overview

The SI3452-B02-GMR is a four-channel Power over Ethernet (PoE) controller designed for use with 802.3at (PoE+) and 802.3af standards. It functions as a Powered Device (PD) controller, managing power delivery across four independent channels. The device supports a maximum power output of 40 W per channel. It operates within a supply voltage range of 1.71 V to 3.63 V and is housed in a compact QFN-40 package measuring 6x6 mm. The component is rated for industrial temperatures from -40°C to +85°C.

Feature Summary

• Four-channel architecture supporting simultaneous PoE and PoE+ operations
• Integrated control logic for compliant power sourcing equipment interaction
• Compact surface-mount packaging suitable for high-density designs

Applications

• Industrial networking equipment requiring multi-port power distribution
• Wireless access points supporting advanced PoE standards
• IP-based surveillance systems with multiple camera inputs

Procurement Notes

Verify the specific suffix GMR indicates reel packaging when ordering. Confirm RoHS compliance status through official Skyworks documentation prior to integration. Ensure the design supports the required thermal dissipation for the QFN-40 package under maximum load conditions. Cross-reference the latest datasheet revision to confirm pinout compatibility with existing PCB layouts.

Selection Notes

Select this component when designing systems requiring four independent PoE channels with support for both legacy 802.3af and higher-power 802.3at standards. It is suitable for applications needing integrated PD control without external microcontroller dependency for basic power management. Consider the QFN-40 footprint constraints during PCB layout planning.

Part Context

This part belongs to the Skyworks Si3452 series of PoE controllers. It is specifically engineered for Powered Device implementations rather than Power Sourcing Equipment. The series provides solutions for multi-port networking infrastructure where space efficiency and standard compliance are critical design factors.

Replacement Considerations

Check Skyworks documentation for direct replacements within the Si3452 family. Verify pin-to-pin compatibility if substituting with other quad-channel PoE controllers from different manufacturers.