STEVAL-ISA031V1 STMicroelectronics

STEVAL-ISA031V1 Demonstration board for 40 W auxiliary 3-phase power supply based on the L6565 and STW4N150 Data Brief Features Input voltage range: 185 Vac to 460 Vac Input frequency range: 50/60 Hz Output voltage V = 24 V I = 1.7 A out1 out1 Output voltage V = 5 V I = 1 A out2 out2 Total output power 40 W Safety: EN60950 EMI: EN55014 Description STEVAL-ISA031V1 This demonstration board introduces a solution for industrial power supplies fed by a 3-phase mains supply. It takes advantage of the high voltage MOSFET (1500 V breakdown voltage) to optimize the operation of the quasi-resonant flyback converter based on the primary controller L6565. The demonstration board has been designed and developed to address low power applications. The board features two outputs, 24 V and 5 V, and is able to deliver more than 40 W. The 5 V output is obtained using an integrated DC-DC converter based on L5970AD, connected on the 24 V output. November 2008 Rev 1 1/4 For further information contact your local STMicroelectronics sales office. www.st.com 4Circuit schematic STEVAL-ISA031V1 1 Circuit schematic Figure 1. Schematic 2/4 T1T1 480-650VDC NTNTCC11 7 D9D9 STSTPS5PS5HH110000 L5L5 10uH10uH 50E50E R1R100 R5R5 150K150K//22WW 8 1.1.8M8M R1R1 C5C5 J6J6 1M1M 3 C1C155 R2R222 D1D1 D2D2 C1C1 3.3.3n/3n/2k2kVV C1C166 1 ncnc 24V/1.7A 1N1N40074007 1N1N40074007 ++ R1R111 1 220u/220u/35V35V 2 22u/22u/35V35V 5V/1A R6R6 150K150K//22WW 14 L1L1 1m1mHH 3 1.1.8M8M F1F1 11AA D6D6 D5D5 22uF22uF//450V450V R2R2 2 400V400Vacac CCOONN3 03 0 L4L4 1M1M 2 SSTTHTTH110808 SSTTTTHH108108 R8R8 TTRRANANSFSFOORRMMEERR 1 L2L2 1m1mHH C3C3 C4C4 330k330k R7R7 RR1122 16R16R COCONN11 10n-X10n-X22 R3R3 1.1.8M8M 10n-X10n-X22 C2C2 R9R9 1M1M 2727 mmHH ++ 230V230Vacac 330k330k D3D3 D4D4 D7D7 2 1N1N40074007 1N1N40074007 Q11Q11 nncc U1U1 C1C133 UU44 L5970AL5970ADD 1 22uF22uF//450V450V L6L6 15uH15uH R4R4 1 8 1N1N41484148 INV VCC 1 8 1M1M OUT VCC COCONN22 2 7 6.6.8n8n -- nncc COMP GD D1D100 R1R133 2 7 SYNC GND 2.2.2k2k-- nncc R2R233 3 6 SSTTPPSS22L25UL25U VFF GND C1C177 3 6 C2C200 RR1177 56k56k 12k12k INH VREF M1M1 C6C6 R1R144 C1C122 ++ 4 5 CS ZCD 4 5 ncnc R1R188 COMP FB 1n1n 18k18k 1 220uF220uF//110V0V 10uF10uF//35V35V L6565L6565 C1C188 2.2.22 STSTP4P4NN115500 HS 12 C/W C1C199 R2R244 22n22n 220p220p R1R199 3k3k99 R2R255 D8D8 R1R166 4k4k77 L3L3 1m1mHH 1k1k 120k120k 1N1N41484148 R2R200 R2R211 2R2R22 2R2R22 C7C7 R1R155 C8C8 C1C100 C1C111 100n100n 47u47u 470p470p 2.2.2n2n 27k27k R2R266 R2R288 C9C9 2k2k22 10k10k-- 11%% 2.2.2n2n C1C144 C2C211 nncc R2R299 CC2222 22n22n 2.2.2n2n -- YY11 5k5k66 C2C233 R2R277 n.n.cc.. 3k3k33 U5U5 U2U2 TTLL431431 3 PCPC881717 R3R300 1.1.2k2k -- 11%% A C A C A C A C 1 4 2 3 3 2 2 1