STEVAL-ISA110V1

STEVAL-ISA110V1 12 V/12 W wide-range non-isolated flyback based on the VIPER26LN Data brief Features ■ Universal input mains range: – input voltage 90 - 264 VAC – frequency 45 - 65 Hz ■ Single output voltage: 12 V @ 1 A continuous operation ■ Standby mains consumption: < 30 mW @ 265 VAC ■ Average efficiency: > 85% ■ Fully protected against faults (overload, feedback disconnection and overheating) ■ EMI: according to EN55022-Class-B STEVAL-ISA110V1 Description The STEVAL-ISA110V1 demonstration board is a 12 V-1 A power supply set in non-isolated flyback topology using the VIPER26LN, a new offline high-voltage converter by STMicroelectronics. The features of the device include an 800 V avalanche-rugged power section, PWM operation at 60 kHz with frequency jittering for lower EMI, current limiting with adjustable set point, onboard soft-start, a safe auto-restart after a fault condition, and low standby power. Protection features include thermal shutdown with hysteresis, delayed overload protection, and open loop failure protection. February 2013 Doc ID 024123 Rev 1 For further information contact your local STMicroelectronics sales office. 1/10 www.st.com 10 Adapter features 1 STEVAL-ISA110V1 Adapter features The electrical specifications of the demonstration board are listed in Table 1. Table 1. 2/10 Electrical specifications Symbol Parameter Value VIN Input voltage range 90 VAC; 265 VAC VOUT Output voltage 12 V IOUT Max. output current 1A ∆VOUT_LF Precision of output regulation ±5% ∆VOUT_HF High frequency output voltage ripple 50 mV TAMB Max. ambient operating temperature 60 °C Doc ID 024123 Rev 1 C6 F Doc ID 024123 Rev 1 C4 C5 R7 C7 C8 COMP FB R2 + LIM R5 CONTROL VDD C1 D2 C2 GND DRAIN + D1 D4 J2 T1 VIPER26 IC1 2 1 3 C9 5 8,9 6,7 D6 D3 C10 + C11 + L1 C12 + GROUND VOUT Application schematic - complete + + L2 Figure 1. R4b t J1 - D0 Schematic diagrams R4a R3 NTC 2 D5 R1 AC IN AC IN STEVAL-ISA110V1 Schematic diagrams AM11547v1 3/10 Schematic diagrams STEVAL-ISA110V1 3 GND R5 R7 C7 C6 R4b R3 AC IN F R4a C4 + C5 - NTC t AC IN C8 COMP LIM CONTROL D0 + FB C1 VDD + L2 C2 + DRAIN D4 D1 1 3 5 T2 D6 VIPER26 8,9 6,7 D3 C10 + C11 + VOUT GROUND Application schematic - simplified for VOUT ≥12 V Figure 2. AM11548v1 4/10 Doc ID 024123 Rev 1 STEVAL-ISA110V1 Bill of material 3 Bill of material Table 2. Bill of material (relevant to schematic in Figure 2 ) Reference Part NTC 2.2 Ω NTC NTC thermistor F T2A 250 V 2 A, 250 Vac fuse, TR5 series Wickmann C1 10 μF, 400 V NHG series electrolytic capacitor Panasonic C2 22 μF, 35 V SMG series electrolytic capacitor Panasonic C4 2.2 μF, 63 V electrolytic capacitor C5 100 nF, 50 V ceramic capacitor C6 1 nF, 50 V ceramic capacitor C7 47 nF, 50 V ceramic capacitor C8 2.2 nF, 50 V ceramic capacitor C9 Description Manufacturer EPCOS Not mounted C10 1000 μF, 16 V ultra low ESR electrolytic capacitor ZL series Rubycon C11 680 μF, 16 V ultra low ESR electrolytic capacitor ZL series Rubycon C12 Not mounted D0 DF06M D1 STTH1L06 D2 Not mounted D3 1 A - 600 V diode bridge Vishay 1 A - 600 V ultrafast diode ST STPS3150 3 A-150 V power Schottky (output diode) ST D4 1.5KE300A Transil ST D5 Not mounted D6 1N4148 R1 Not mounted R2 Not mounted Small signal diode R3 47 kΩ 1% 1/4 W resistor R4a 15 kΩ 1% 1/4 W resistor R4b 2.7 kΩ 1% 1/4 W resistor R5 33 kΩ 1/4 W resistor R7 3.3 kΩ 1/4 W resistor L1 Short-circuit L2 RFB0807-102 T1 1715.0049 IC1 VIPER26LN High-voltage 60 kHz PWM J1 Not mounted Jumper J2 Short-circuit Jumper Input filter inductor (L = 1 mH, ISAT = 0.3 A; DCR max. = 3.4 Ω) 60 kHz switch mode transformer Doc ID 024123 Rev 1 Fairchild Coilcraft Magnetica ST 5/10 Line/load regulation and output voltage ripple 4 STEVAL-ISA110V1 Line/load regulation and output voltage ripple The output voltage of the board has been measured in different line and load conditions: Line regulation Figure 4. 12.3 12.3 12.2 12.2 0 12.1 25% 50% Vout[V] Vout[V] Figure 3. 75% 12 Load regulation 90 12.1 115 230 12 265 100% 11.9 11.9 80 105 130 155 180 205 230 0 255 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.1 Iout[A] Vin[V] AM11557v1 Figure 5. 1 Efficiency vs. VIN AM11558v1 Figure 6. Efficiency vs. load 100 89 95 87 85 85 eff [%] eff [%] 90 80 83 90 25% 75 50% 230 75% 70 115 81 79 265 100% 77 65 60 75 80 110 140 170 200 230 260 0.2 Vin[Vac] 0.6 0.8 1 Iout[A] AM11565v1 6/10 0.4 Doc ID 024123 Rev 1 AM11566v1 STEVAL-ISA110V1 Figure 7. Line/load regulation and output voltage ripple Active mode efficiency vs. VIN Figure 8. Input voltage averaged efficiency vs. load 100 89 95 87 90 85 80 75 eff [%] eff [%] eff [%] 85 83 81 70 79 65 77 75 60 80 110 140 170 200 230 0 260 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 Vin[V] AM11567v1 Figure 9. 1.1 AM11568v1 PIN vs. VIN @ no load and light load Figure 10. Efficiency @ PIN = 1 W 200 90 0 175 85 25mW 150 80 50mW 125 75 eff [%] Pin [mW] 1 Iout[A] 100 75 70 65 50 60 25 55 0 80 105 130 155 180 205 230 255 Vin[V] 50 80 110 140 170 200 230 260 Vin[V] AM11570v1 Doc ID 024123 Rev 1 AM11571v1 7/10 Board layout 5 STEVAL-ISA110V1 Board layout Figure 11. Bottom layer & top overlay 8/10 Doc ID 024123 Rev 1 STEVAL-ISA110V1 6 Revision history Revision history Table 3. Document revision history Date Revision 11-Feb-2013 1 Changes Initial release. Doc ID 024123 Rev 1 9/10 STEVAL-ISA110V1 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 herein 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 assumes 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. If 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 whatsoever 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 whatsoever, 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 - Italy - Japan Malaysia - Malta - Morocco - Philippines - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America www.st.com 10/10 Doc ID 024123 Rev 1