PEM3124 datasheet(2/13 Pages) ETC2

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PEM3100 SERIES

30W Power Over Ethernet Plus (POE+) PD Module

www.poweredethernet.com

PEM3100_13F_R1-1

Page 2 of 13

TABLE OF CONTENTS

PRODUCT OVERVIEW ............................................................................................................ ERROR! BOOKMARK NOT DEFINED.

PRODUCT FEATURES ............................................................................................................. ERROR! BOOKMARK NOT DEFINED.

PRODUCT SELECTOR .................................................................................................................................................................. 3

ABSOLUTE MAXIMUM RATINGS, ............................................................................................................................................... 3

INPUT CHARACTERISTICS .......................................................................................................................................................... 3

DC OUTPUT CHARACTERISTICS .................................................................................................................................................. 3

PIN DESCRIPTION ...................................................................................................................................................................... 4

FUNCTIONAL DESCRIPTION ....................................................................................................................................................... 5

PART F.1. – INPUTS ............................................................................................................................................................................ 5

PART F.2. – MODES OF OPERATION ....................................................................................................................................................... 5

PART F.3. – POWERED DEVICE (PD) SIGNATURE ...................................................................................................................................... 6

PART F.4. – IEEE POE POWER CLASSIFICATION METHOD .......................................................................................................................... 6

PART F.5. – AT DETECTION (ATD PIN) ................................................................................................................................................... 7

PART F.6. – REMOTE SHUTDOWN (RSD) ................................................................................................................................................ 7

PART F.7. – ISOLATION ........................................................................................................................................................................ 8

PART F.8. – OUTPUT VOLTAGE ADJUSTMENT ........................................................................................................................................... 8

PART F.8.1. – PEM3100 OUTPUT VOLTAGE ADJUSTMENT – REFERENCE CHART ........................................................................................... 9

THERMAL PROFILE .................................................................................................................................................................. 10

PART F.9. – HEAT GENERATION .......................................................................................................................................................... 10

HEAT SINK ............................................................................................................................................................................... 11

APPLICATION NOTES ............................................................................................................................................................... 12

APPLICATION AREAS ............................................................................................................................................................... 12

TABLE OF FIGURES

Figure 1 – Block Diagram and Typical Connections ........................................................................................................4

Figure 2 – Typical System Configuration .........................................................................................................................5

Figure 3 – POE Power-on start-up waveform ..................................................................................................................6

Figure 4 – ATD Pin Connection........................................................................................................................................7

Figure 5 – Remote Shut Down Connection ......................................................................................................................8

Figure 9 – Thermal Performance profile at nominal Vin..................................................................................................10

Figure 10 – Physical Package ........................................................................................................................................11

Figure 11 – Sample PoE System Configuration .............................................................................................................12

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