data brief for further information contact your local stmicroelectronics sales office. december 2011 doc id 022633 rev 1 1/5 5 EVLALTAIR900-M1 double output smps for power line applications using the altair04-900 primary controller features universal input mains range: 90 - 264 vac, frequency 45 - 65 hz double output voltage: 13 v @ 0.55 a and 3.3 v @ 100 ma peak power optoless constant voltage - constant current output regulation meets power line communication system specifications based on the st7580 average efficiency: > 70% emi: according to en55022-class-b description this board implements a 7.5 w double output wide range mains adapter with constant voltage - constant current, developed to build an innovative ac-dc adapter to supply a complete power line communication based on the st7580. the power supply provides a 13 v output voltage to supply the power line modem (plm) and the analog circuitry, and a post-regulated 3.3 v to supply digital circuitry and an optional external microcontroller. the board uses the new altair04-900, a quasi- resonant (qr) current-mode controller ic specifically designed for qr zvs (zero voltage switching at switch turn-on) flyback converters, which combines a high-performance low-voltage pwm controller chip and a typical 16 r ds(on) , 900 v, avalanche-rugged power mosfet in the same package. the device is capable of providing constant output voltage regulation using primary-sensing constant voltage loop (cv loop). this eliminates the need for the optocoupler and the secondary voltage reference while still maintaining quite accurate regulation. in addition, by using the primary constant current loop (cc loop), it is possible to set the maximum deliverable output current without any secondary components or current sensor. the board implements several protections that considerably increase end-product safety and reliability: auxiliary winding disconnection (or brownout) detection, shorted secondary rectifier detection, and transformer saturation protection: all of which are in auto-restart mode. www.st.com
EVLALTAIR900-M1 2/5 doc id 022633 rev 1 figure 1. output voltage characteristic with 3v3 @ 40 ma figure 2. output voltage characteristic with 3v3 @ 80 ma 9 d f 9 d f 9 d f 9 d f 2 x w s x w y r o w d j h > 9 @ 2 x w s x w f x u u h q w > p $ @ 9 d f 9 d f 9 d f 9 d f 2 x w s x w y r o w d j h > 9 @ 2 x w s x w f x u u h q w > p $ @
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revision history EVLALTAIR900-M1 4/5 doc id 022633 rev 1 1 revision history table 1. document revision history date revision changes 23-dec-2011 1 initial release.
EVLALTAIR900-M1 doc id 022633 rev 1 5/5 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 particular 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 two authorized st representatives, st products are not recommended, authorized or warranted for use in military, 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 register ed 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. ? 2011 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 - philippines - singapore - spain - sweden - switzerland - united kingdom - united states of america www.st.com
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