STEVAL-ISA036V1 5 W wide range SMPS demonstration board for metering and motor control based on the ESBT® STC04IE170HP Data Brief Features ■ Rectified minimum input voltage Vinmin=200 V ■ Rectified maximum input voltage Vinmax=1200 V ■ Isolated output voltage Vout1=15 V / 66 mA ■ Primary side ground output voltage Vout2=5 V / 0.6 A ■ Primary side ground output voltage Vout3=15 V / 66 mA ■ Maximum output power Pout=5 W ■ Converter efficiency @ Vindc=400 V, max load > 65% STEVAL-ISA036V1 Description This demonstration board implements a universal input power supply design for metering and motor drives applications. It has three outputs: two 15 V outputs, one of which is isolated and the other has a primary side ground. There is also a third 5 V output, which is often used to supply the microcontroller. The design is based on the L6565 PWM driver and the STC04IE170HP, as the main switch. The design method, however, can also be applied to an SMPS for other applications working on a tri-phase mains, and can easily be upgraded for higher output power. To achieve very high efficiency, despite the wide input voltage range, an active start-up network has been mounted on the board. For more information regarding the design of an auxiliary power supply using ESBT® in flyback quasi-resonant (QR) topology with the L6565, refer to application notes AN2254 and AN2528. For base driving network design, refer to AN2454. February 2009 Rev 1 For further information contact your local STMicroelectronics sales office. 1/4 www.st.com 4 F1 F 1 R18 R18 22K 2 TR5FUSE T R 5 F USE R 4 R4 1 .5 M 1.5M R 5 R5 1 .5 M 1.5M P ho e nix 3 pin 3 2 1 1 1 2 1 2 D5 D5 D D4 4 D2 D1 10K 10K R28 330 R26 25 R25 2 20K R 220K C4 450V, 33uF R29 + M600X L1 100pF 100pF C12 C12 680K R 34 2 1 2 C2 + Q4 CS Vff COMP INV R9 150K R 10 R10 1 50K 150K + BA13 L 6565 L6565 1 U U1 4.7nF 4 .7 nF C9 C9 4 3 2 1 1 450V, 33uF C3 450V, 33uF STTH112A 1 3 2 2/4 330 R22 ZCD GND GD Vcc 5 6 7 8 R 7 R7 1 50K 150K R3 R3 150K 1 50K 150K R 2 R2 R1 R1 150K 150K 1 2 3 + 47uF, 25V C10 STP03D200 S TP03D200 Q3 5 6K, 1 /8W 56K, 1/8W R 21 R21 5 6 K , 1 /8W R15 R17 5 6 K , 1 /8W R 32 R32 56K, 1/8W R 30 56K, 1/8W R31 R 31 56K, 1/8W D13 18V 2 1 2 22 R 24 R24 2 .2 K 2.2K L L4148 LL4148 D 7 D7 1 R 12 R12 0 1 10 47k 1/8W R8 6 R R6 R13 STPS1H100A D12 LL4148 1 D11 0 nF 1 10nF C 6 C6 2 4 R23 4.7 1/4W Q1 STC04IE170HV 9 3 8 1 C 5 C5 0 0 2 2 uF ..0022uF Y1 cap TRASF5W T R A SF5W U2 U2 7 14 6 13 2 D3 1 C + + C13 220uF 25V STPS3L60U A D9 D9 STPS1H100A 25V R 33 1.5K + 25V C8 2200uF + C7 2200uF C1 220uF 25V 1 0K 10K R 14 R14 0K 1 10K R 11 R11 i sol at ed 15V, 66mA J4 J4 1 2 Phoenix P ho e nix 2 pin p in not i sol at ed 5V, 0. 6A not i s ol at ed J3 1 2 Phoenix 2 pin 15V, 66mA J2 1 2 Phoenix 2 pin Figure 1. 2 1 1 1 3 J1 Circuit schematic STEVAL-ISA036V1 Circuit schematic Schematic diagram STEVAL-ISA036V1 2 Revision history Revision history Table 1. Document revision history Date Revision 17-Feb-2009 1 Changes Initial release. 3/4 STEVAL-ISA036V1 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. 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