AN4319 datasheet(1/28 Pages) STMICROELECTRONICS

Part #	AN4319

Description	Power over Ethernet - PD converter with 12 V 1 A output

PDF	28 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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1 / 28 page

February 2014

DocID024885 Rev 1

1/28

AN4319

Application note

Power over Ethernet - PD converter with 12 V 1 A output,

standard IEEE 802.3af compliant

By Antonio Rotta

Introduction

This document focuses on a reference design for a simple, low cost 12 V 1 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.

Figure 1. STEVAL-TSP003V2 demonstration board photo

www.st.com

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