for further information contact your local stmicroelectronics sales office. august 2013 docid025084 rev 1 1/4 4 STEVAL-ISA130V1 12 v 140 ma 30 khz non-isolated buck topology regulator based on viper06xn data brief features ? 800 v avalanche-rugged power section ? pwm operation current mode controller ? limiting current with adjustable set point ? fixed frequency with jit ter for emi improvement ? operating frequency: 30 khz ? input voltage range: 85 v to 265 v ac or 100 v to 375 v dc ? low power application without auxiliary winding ? no load consumption below 30 mw @ 265 v ac ? on-board soft-start ? auto-restart after a fault condition ? feedback disconnection protection ? hysteretic thermal shutdown ? rohs compliant description the STEVAL-ISA130V1 demonstration board implements a non-isolated buck topology regulator using the viper06, which supplies a 12 v output at up to 140 ma with an operating frequency of 30 khz. the output voltage of this power supply can be easily set by changing the value of one resistor. the circuit can be powered by either 85 v to 265 v ac or 100 v to 375 v dc. www.st.com
test circuit STEVAL-ISA130V1 2/4 docid025084 rev 1 1 test circuit figure 1. test circuit schematic 1 h x w u d o / l q h / x + / p + & x ) 9 & x ) 9 & x ) 9 5 : & d u e r q & r p s 5 . 7 2 y $ & 9 # p $ & q ) ' 6 0 ' , & 7 ' 6 0 ' , & 7 ' 6 7 7 + / $ 5 . 9 r x w 9 i ' 9 i ' ) r u 9 r x w s x w 5 . 8 9 , 3 h u ; ' , 3 9 ' 6 0 ' , & 7 2 s w l r q d o i r u o r z h u v w d q g e \ s r z h u d q g e h w w h u h i i l f l h q f \ 5 1 8 & x ) 9 - s l q - s l q 5 g ] . & x ) 9 5 . 5 . 5 . & x ) & ; s )
docid025084 rev 1 3/4 STEVAL-ISA130V1 revision history 2 revision history table 1. document revision history date revision changes 02-aug-2013 1 initial release.
STEVAL-ISA130V1 4/4 docid025084 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. st products are not authorized for use in weapons. nor are st products designed or authorized for use in: (a) safety critical applications such as life supporting, active implanted devices or systems with product functional safety requirements; (b) aeronautic applications; (c) automotive applications or environments, and/or (d) aerospace applications or environments. where st products are not designed for such use, the purchaser shall use products at purchaser?s sole risk, even if st has been informed in writing of such usage, unless a product is expressly designated by st as being intended for ?automotive, automotive safety or medical? industry domains according to st product design specifications. products formally escc, qml or jan qualified are deemed suitable for use in aerospace by the corresponding governmental agency. 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. ? 2013 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
|
