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SG6742HRSY Datasheet(PDF) 11 Page - Fairchild Semiconductor |
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SG6742HRSY Datasheet(HTML) 11 Page - Fairchild Semiconductor |
11 / 13 page © 2008 Fairchild Semiconductor Corporation www.fairchildsemi.com SG6742HL/HR • Rev. 1.0.4 11 Applications Information 1 2 3 CN1 CN1 F1 C2 + C4 1 4 BD1 D2 1 Q2 R7 GND 1 FB 2 NC 3 HV 4 RT 5 SENSE 6 VDD 7 GATE 8 U1 SG6742MR R4 U2 C6 R2 1 3 2 Q1 + C7 2 1 D3 R9 R11 R10 R8 C11 + C9 THER1 D4 C12 VZ1 C1 T1 4 2 3 7 8 6 5 T2 VO+ VO- C3 L1 R5 C10 R6 C5 R1 VO+ R3 1 2 L2 VO+ + C8 L3 D1 R U3 Figure 21. 60W Flyback 12V/5A Application Circuit BOM Designator Part Type Designator Part Type BD1 BD 4A/600V L3 Inductor (900µH) C1 XC 0.68µF/300V Q1 STP20-100CT C2 XC 0.1µF/300V Q2 MOS 7A/600V C3 YC 2200pF/Y1 R1 R 100K Ω 1/2W C4 EC 120µF/400V R2 R 47 Ω 1/4W C5 CC 0.01µF/500V R3 R 100K Ω 1/2W C6 CC 1000pF/100V R4 R 4.7 Ω 1/8W C7 EC 1000µF/25V R5 R 100 Ω 1/8W C8 EC 470µF/25V R6, R9 R 4.7K Ω 1/8W C9 EC 22µF/50V R7 R 0.3 Ω 2W C10 CC 47pF/50V R8 R 680 Ω 1/8W C11 CC 2200pF/50V R10 R 150K Ω 1/8W C12 CC 0.01µF/50V R11 R 39K Ω 1/8W D1 Zener Diode 15V 1/2W (option) THER1 Thermistor TTC104 D2 BYV95C T1 10mH D3 FR103 T2 255µH(PQ2620) D4 1N4007 U1 IC SG6742 F1 FUSE 4A/250V U2 IC PC817 L1 Inductor (900µH) U3 IC TL431 L2 Inductor (2µH) VZ1 VZ 9G |
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