Fairchild Semiconductor Page 4 Rev. 1 23/08/06 1 Disclaimer Fairchild Semiconductor Limited (“Fairchild”) provides these design services as a benefit to our … customers. Fairchild has made a good faith attempt to build for the specifications provided or needed by the customer. Fairchild provides this product “as is” and without “recourse” and MAKES NO WARRANTY, EXPRESSED, IMPLIED OR OTHERWISE, INCLUDING ANY WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Customer agrees to do its own …

www.fairchildsemi.com ©2006 Fairchild Semiconductor Page 2 Rev. 1 23/08/06 1 DISCLAIMER 4 2 WARNING 4 3 INTRODUCTION 5 4 PSU SPECIFICATION 5 4.1 Electrical Specification 5 4.2 Mechanical Specification 5 5 SCHEMATIC DIAGRAM AND CIRCUIT DESCRIPTION 6 5.1 Schematic Diagram 6 5.2 Circuit Description 7 5.3 PWM Controller FAN7601 7….. 5 Schematic Diagram and Circuit Description 5.1 Schematic Diagram Q3 BC847B Q4 BC858C HS2 Fischer_SK09 D6 BZX84C22 0.35W IC2 FOD2742A HS1 HS_FISCHER_SK481 _75 Vstr 1 CS/FB 2 Latch/SS 3 RT /CT 4 GND 5 VCC 7 Out 6 Vref 8 IC4 FAN7601N R15 0R56 2W R16 470 0.25W C3 100nF 50V C6 2.2nF 50V R9 47k 0.6W R26 0R47 2W R27 0R47 2W R28 100k 0.125W C1 47uF 50V R22 4k7 0.125W R7 130k 0.25W C14 47nF 50V R24 330 0.25W Q5 BC847B D7 FDLL4148 R23 220 0.125W R14 20k 0.125W R17 0R 0.125W C15 100pF 50V Q6 BC847B R8 2k2 0.25W R18 1k 0.125W D5 ISL9R860P2 C5 68uF 200V C13 1uF 16V 1 3 15 17 5 2 6 16 18 13 7 8 9 10 11 12 14 T1 TRNSFMR ETD44 EPCOS 18/dH Q1 FCP11N60 C7 220pF 50V D1 FDLL4148 +150V / 4A Out C12 100nF 50V R21 3k3 0.125W 0V Out 0 1 2 CONN1 B2P-VH R25 1k3 0.125W 1 2 CONN2 B2P3-VH C8 470nF 16V

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