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May 2014

DocID026436 Rev 1

1/7

STEVAL-TSP005V2

Power over Ethernet - PD converter with 5 V 2 A output,

standard IEEE 802.3af compliant

Data brief

Features

 IEEE 802.3af compliant PD interface

 Works with power supplied from Ethernet LAN

cables or from local auxiliary sources

 Line input voltage range: 40 Vdc to 60 Vdc

output voltage: 5 Vdc ± 5%

 Output current: 2 A

 Peak-to-peak output ripple: 30 mV

 Efficiency DC-DC full-load: > 86%

 Efficiency overall peak: > 84%

V in load line case: < 0.5%

Description

This document focuses on a reference design for

a simple, low cost 5 V 2 A flyback converter

based on the PM8800A device.

The PM8800A is a highly integrated device

embedding an IEEE 802.3af compliant “Powered

Device” (PD) interface together with a PWM

controller.

It can be successfully used in all low power, low

cost PoE applications.

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