EVALVIPER17L-7W Demonstration board on 7 W single output based on the VIPer17 Data Brief Features ■ Current mode with user set drain current limitation ) ■ Frequency jittering s ( ■ EMI regulation compliant ct u ■ Low stand by consumption d ■ High efficiency conversion o r ■ Over-load / output short circuit protection P ■ Transformer saturation and secondary winding e short circuit protection (2nd OCP) eEtVALVIPER17L-7W l ■ Output over-voltage protection (optional) o s ■ Brown out protection (optional) b brown out protections, improve the reliability and O safety of the design. More over internal thermal Description - shut down and an 800 V avalanche rugged power ) s MOSFET improve the robustness of the system. The new VIPer17 device integrates in the same ( package two components: an advanccted PWM The present demonstration board is a standard controller built in BCD6 technologuy and an 800 V one output isolated fly-back converter that uses avalanche rugged vertical powder MOSFET. The all the protections above mentioned. If not o device is suitable for off line power converter necessary brown out protection and over-voltage r operating both, with wPide range input voltage (85 protection could be not used reducing the number VAC - 270 VAC) eu p to 7 W or with single range of external comp furthermore. input voltage t(85 VAC - 132 VAC or 175 VAC - 265 e VAC). Wlith European range input voltage (175 o VACs - 265 VAC) the device can handle up to 10 W ofb output power. The proposed solution has the O advantage of using few external components compared to a discrete solution, providing several switch mode power supply's protections and very low stand by consumption in no load condition. VIPer17 device operates at fixed frequency that can be 115 kHz or 60 kHz according to the part number selected. Frequency jittering is implemented and it helps to meet the standards regarding electromagnetic disturbance The several protections present on the device like: overload, output short circuit, secondary winding short, hard transformer saturation protection and June 2008 Rev 1 1/6 For further information contact your local STMicroelectronics sales office. www.st.com 6

Board parameter and circuit schematic EVALVIPER17L-7W 1 Board parameter and circuit schematic Table 1. Demonstration board parameters Parameter Symbol Value Input voltage range V 90V – 265V IN RMS RMS Output voltage V 12V OUT Max output current I 600mA OUT Precision of output regulation ∆V ±5% OUT_LF ) s High frequency output voltage ripple ∆V 50mV OUT_HF ( t c u Figure 1. EVALVIPER17L-7W schematic d o r P e t e l o s b O - ) s ( t c u d o r P e t e l o s b O 2/6

EVALVIPER17L-7W Bill of material Appendix A Bill of material Table 2. BOM list Item Qty. Reference Description Part/value 1 1 BR1 600 V 1 A diodes bridge DF06M 2 1 C1 100 nF X2 capacitor 100 nF x2 B32922 3 2 C2, C3 450V 10 µF electrolytic capacitor 450YXA10M12.5x20 NRSA220M35V5x11 4 1 C4 35 V 22 µF electrolytic capacitor ) TR s ( 5 1 C5 Not mounted Not moutnted c u 6 1 C6 25 V ceramic capacitor 1.8 nF d o 7 2 C7 25 V ceramic capacitor 33 nF r P 8 1 C8 Y1 2.2 nF capacitor Series 440L e Serie ZL 25 V 470 µF 9 1 C9 470 µF 25V electrotlytic capacitor e 10X16 l o 25 V 47 µF electrolytic capacitor 10 1 C10 s 50 V 4.7µF YK rubycbon ZLG O C11 25 V ceramic capacitor 330 nF - 11 1 C12 10 nF ) s 12 1 ( D1 Diode BAT46 t c 13 1 D2 Diode 1N4148 u 14 d 1 D3 Diode STTH1L06 o 15 r 1 D4 Diode STPS2H100 P 16 1 D5 Transil P6KE250 e e t TR5 250 V 500 mA 17 1 F1 Fuse l (fuse) o s 18 2 J1,J2 Two screw connectors PK3502 b O 19 1 J3 3 Pin jumper (strip line) Jumper 20 1 L1 10 µH 1 A inductor ELC09D100E 21 1 NTC1 10 Ohm NTC B57153S0100M000 22 1 OPTO1 Opto coupler PC817 23 1 R1 10 Ohm resistor 1/4 W resistor 24 2 R2,R4 1600 kΩ 1% 1/4 W resistor 1% precision 1/4 W 25 1 R3 68 kΩ resistor 1% precision 1/4 W 26 1 R5 22 kΩ 1% 1/4 W resistor 1% precision 1/4 W 27 1 R6 1 kΩ resistor 1/4 W 28 1 R8 15 kΩ 1% 1/4 W resistor 1% precision 1/4W 3/6

Bill of material EVALVIPER17L-7W Table 2. BOM list (continued) Item Qty. Reference Description Part/value 29 1 R9 3.9 kΩ 1% 1/4 W resistor 1% Precision 1/4 W 30 1 R10 33 kΩ resistor 1/4 W 31 2 R14 220 kΩ resistor 1/4 W 32 1 R12 33 kΩ resistor 1/4 W 33 1 R13 1 kΩ resistor 1/4 W Code: 1715.0009 34 1 T1 Switch mode power transformer REV1 ) 35 1 T2 Common mode choke for line filter BU9-103R25Bs ( 36 1 U1 VIPER17 (60 KHz, DIP-7) VIPERc 1t7 u 37 1 VR1 Voltage reference TL431 d o r P e t e l o s b O - ) s ( t c u d o r P e t e l o s b O 4/6

EVALVIPER17L-7W Revision history 2 Revision history T able 3. Document revision history Date Revision Changes 05-Jun-2008 1 Initial release. ) s ( t c u d o r P e t e l o s b O - ) s ( t c u d o r P e t e l o s b O 5/6

EVALVIPER17L-7W ) s Please Read Carefully: ( t c u Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subdsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and soervices described herein at any time, without notice. r P All ST products are sold pursuant to ST’s terms and conditions of sale. e Purchasers are solely responsible for the choice, selection and use of the ST products andt services described herein, and ST assumes no e liability whatsoever relating to the choice, selection or use of the ST products and services described herein. l o No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. If any part of this s 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 b or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoever of such O third party products or services or any intellectual property contained therein. - ) UNLESS OTHERWISE SET FORTH IN ST’S TERMSs AND CONDITIONS OF SALE ST DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY WITH RESPECT TO THE USE AN(D/OR SALE OF ST PRODUCTS INCLUDING WITHOUT LIMITATION IMPLIED t WARRANTIES OF MERCHANTABILITY, FITNcESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION), OR INFRINGEMuENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. d UNLESS EXPRESSLY APPROVED IN WRITING BY AN AUTHORIZED ST REPRESENTATIVE, ST PRODUCTS ARE NOT o RECOMMENDED, AUTHORIZED OR WARRANTED FOR USE IN MILITARY, AIR CRAFT, SPACE, LIFE SAVING, OR LIFE SUSTAINING r APPLICATIONS, NOR IN PPRODUCTS OR SYSTEMS WHERE FAILURE OR MALFUNCTION MAY RESULT IN PERSONAL INJURY, DEATH, OR SEVERE P ROPERTY OR ENVIRONMENTAL DAMAGE. ST PRODUCTS WHICH ARE NOT SPECIFIED AS "AUTOMOTIVE GRADE" MAY ONLYe BE USED IN AUTOMOTIVE APPLICATIONS AT USER’S OWN RISK. t e l o Resale of ST products with provisions different from the statements and/or technical features set forth in this document shall immediately void s any warranty granted by ST for the ST product or service described herein and shall not create or extend in any manner whatsoever, any b liability of ST. O 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. © 2008 STMicroelectronics - All rights reserved STMicroelectronics group of companies Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America www.st.com 6/6