preliminary data this is preliminary information on a new product now in deve lopment or undergoing evaluation. details are subject to change without notice. march 2009 rev 1 1/6 6 SPDCPOE12 power over ethernet 10 w module features input voltage range: 38.5 v to 60 v 10 w output based on st devices integrating standard poe interface and current mode pvm controller ieee 802.3af compliant (poe standard) class 0 (zero), 0-12.96 w input output voltage 12 v output current 0.8 a output voltage 5 % ripple 1 % rms transient response 5 %, ? load to full load operating temperature range -40 c to 70 c input transient suppressor under voltage lockout soft-start short circuit protection 1500 vdc input/output insulation input and ou tput will be normally maintained within selv limit very compact size, abo ut 86x24.2x17 mm vertical tht package rohs compliant ul 94v-0 flammability applications the target applications are small low power remote ip appliances. security system, door s access, cameras, alarms displays public address systems wireless access point environmental control telemetry remote environmental monitoring table 1. device summary order code nominal input voltage nominal output voltage max efficiency nominal power SPDCPOE12 48 v 12 v tbd % 10 w www.st.com
description SPDCPOE12 2/6 rev 1 1 description SPDCPOE12 is a power module specifically designed to provide an isolated, low-voltage power source to a remote powered device (pd) in power over ethernet (poe) applications. SPDCPOE12 has full functional compliance with ieee802.3af. it is designed to extract power from ethernet cable when sourced by power sourcing eq uipment (pse) also conforming to ieee802 .3af. SPDCPOE12 is rated 10 w and incorporate pd detection and pd classification current signa tures required for the pse. the m odule is compatible with pd classifications class 0. in addition to a fully integrated dc-dc converter, each SPDCPOE12 power module incorporates internal input diode bridges to support both data line and spare line pair standard ethernet connections, a transient suppressor for input over-voltage protection, and an emi filter to ensure noise compatibility with ethernet data signals. other features include: input under voltage lockout (uvlo), soft-start, over-current and short- circuit protection. table 2. pin description no pin name i/o description j1-1 tx + i ethernet in data line j1-2 tx - i ethernet in data line j1-3 rx + i ethernet in data line j1-4 sp1 i ethernet in spare line j1-5 sp1 i ethernet in spare line j1-6 rx - i ethernet in data line j1-7 sp2 i ethernet in spare line j1-8 sp2 i ethernet in spare line j2-1 td + o ethernet out data line j2-2 td - o ethernet out data line j2-3 rd + o ethernet out data line j2-4 n.c. j2-5 n.c. j2-6 rd- o ethernet out data line j2-7 n.c. j2-8 n.c. j3-1 vout + o power output +12 volt j3-2 vout + o power output +12 volt j3-3 vout - o power output 0 volt j3-4 vout - o power output 0 volt
SPDCPOE12 typical configuration rev 1 3/6 2 typical configuration figure 1. typical power coupling using SPDCPOE12 SPDCPOE12
mechanical data SPDCPOE12 4/6 rev 1 3 mechanical data in order to meet environmental requirements, st offers these devices in different grades of ecopack ? packages, depending on their level of environmental compliance. ecopack ? specifications, grade definitions and product status are available at: www.st.com . ecopack is an st trademark. figure 2. mechanical dimensions figure 3. footprint
SPDCPOE12 revision history rev 1 5/6 4 revision history table 3. document revision history date revision changes 20-mar-2009 1 initial release
SPDCPOE12 6/6 rev 1 please read carefully: information in this document is provided solely in connection with st products. stmicroelectronics nv and its subsidiaries (?st ?) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described he rein at any time, without notice. all st products are sold pursuant to st?s terms and conditions of sale. purchasers are solely responsible for the choice, selection and use of the st products and services described herein, and st as sumes no liability whatsoever relating to the choice, selection or use of the st products and services described herein. no license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. i f any part of this document refers to any third party products or services it shall not be deemed a license grant by st for the use of such third party products or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoev er of such third party products or services or any intellectual property contained therein. unless otherwise set forth in st?s terms and conditions of sale st disclaims any express or implied warranty with respect to the use and/or sale of st products including without limitation implied warranties of merchantability, fitness for a parti cular purpose (and their equivalents under the laws of any jurisdiction), or infringement of any patent, copyright or other intellectual property right. unless expressly approved in writing by an authorized st representative, st products are not recommended, authorized or warranted for use in milita ry, air craft, space, life saving, or life sustaining applications, nor in products or systems where failure or malfunction may result in personal injury, death, or severe property or environmental damage. st products which are not specified as "automotive grade" may only be used in automotive applications at user?s own risk. resale of st products with provisions different from the statements and/or technical features set forth in this document shall immediately void any warranty granted by st for the st product or service described herein and shall not create or extend in any manner whatsoev er, any liability of st. st and the st logo are trademarks or registered trademarks of st in various countries. information in this document supersedes and replaces all information previously supplied. the st logo is a registered trademark of stmicroelectronics. all other names are the property of their respective owners. ? 2009 stmicroelectronics - all rights reserved stmicroelectronics group of companies australia - belgium - brazil - canada - china - czech republic - finland - france - germany - hong kong - india - israel - ital y - japan - malaysia - malta - morocco - singapore - spain - sweden - switzerland - united kingdom - united states of america www.st.com
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