september 2015 docid028372 rev 1 1 / 4 for further information contac t your local stmicroelectronics sales office www.st.com steval - ill076v1 40 w european input - range ultra - slim flyback converter using the hvled001 quasi resonant flyback controller data brief features ? input voltage: v in : 180 - 264 v rms , f: 45 - 66 hz ? output voltage: 56 v / 720 ma ? high power factor, low thd ? no - load: better than 400 mw @ 230 v in ? full load efficiency: better than 92% ? short - circuit protection with auto restart ? emi: pre - compliant with en55022 (b) limits ? dimensions: 183 mm x 28 mm, h 17 mm ? pcb: single - side 35 m, fr4, mixed pth/smd ? rohs compliant description the steval - ill076v1 product evaluation board implements an offline power converter based on a single - stage high - pf flyback topology using the hvled001 controller. a very slim form factor is achieved using innovative magnetic parts. output voltage is controlled by the primary side, reducing the need for costly opto - couplers. the precision of the hvled001's psr feature together with the innovative structu re of the transformer make output voltage regulation very accurate against load and line changes. very high efficiency is obtained and a full set of protection features are implemented, including protection against output short - circuit and input overvoltag e. conducted emi is pre - screened and clearance and creepage distances are within en60950 safety standards. power factor and thd measurements are optimized to be higher than 0.95 and lower than 10%, respectively, at full load. the main application for this converter is bus power supply for an led string driver providing 4 kv of isolation.
schematic diagram steval - ill076v1 2 / 4 docid028372 rev 1 1 schematic diagram figure 1 : steval - ill076v1 circuit schematic gspg1509150955sg
steval - ill076v1 revision history docid028372 rev 1 3 / 4 2 revision history table 1: document revision history date version changes 18 - sep - 2015 1 initial release.
steval - ill076v1 4 / 4 docid028372 rev 1 important notice C please read carefully stmicroelectronics nv and its subsidiaries (st) reserve the right to make changes, corrections, enhancements, modifications , and improvements to st products and/or to this document at any time without notice. purchasers should obtain the latest relevant information on st products before placing orders. st products are sold pursuant to sts terms and conditions of sale in place at the time of or der acknowledgement. purchasers are solely responsible for the choice, selection, and use of st products and s t assumes no liability for application assistance or the design of purchasers products. no license, express or implied, to any intellectual property right is granted by st herein. resale of st products with provisions different from the information se t forth herein shall void any warranty granted by st for such product. st and the st logo are trademarks of st. all other product or service names are the property of their respective owners. information in this document supersedes and replaces information previously supplied in any prior versions of this document. ? 2015 stmicroelectronics C all rights reserved
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