STEVAL-TSP001V1: POE, 10W, 12V and 3.3V @ 650mA

Summary

This application note describes the demonstration board for the evaluation of a Power over Ethernet (PoE) system used to transmit electrical power, along with data, to remote devices over a standard twisted-pair cable in an Ethernet network.

A complete power solution for Ethernet-connected powered devices is presented. The power supply fully complies with IEEE 802.3-2005 PoE specifications and delivers the rated output from any compliant source.

Example outputs of 3.3 V and 12 V are given in this document, but other requirements can easily be met by implementing small changes.

Specifications

Manufacturer STMicroelectronics
Category Power Management
Sub-Category POE - Power Over Ethernet
Eval Board Board not Stocked
Compliance IEEE 802.3af (802.3at Type 1)
Outputs and Type 2 Isolated
Voltage Out 12 V, 3.3 V
Current Out 650mA (x2)
Voltage In 44 ~ 57 V
Efficiency @ Conditions >76%, 48V in, 12 3.3 @ 325 ~ 650 mA
Internal Switch No
Features Over Current Protection
Under Voltage Protection, Brown-Out
Switching Frequency 100 kHz
Component Count + Extras 53 + 4
Application / Target Market PoE, Power Over Ethernet
Design Author STMicroelectronics
Main I.C. Base Part L6565
Date Created By Author
Date Added To Library 2011-03

Support Documents & Media

STEVAL-TSP001V1 - User Guide - AN2487 L6565D - Datasheet STEVAL-TSP001V1 - BOM

Media

STEVAL_TSP001V1_Schematic.JPG STEVAL_TSP001V1_Board_Front.JPG STEVAL_TSP001V1_Board_Rear.JPG STEVAL_TSP001V1_Board_Bottom.JPG