fs8s0765rcb Fairchild Semiconductor, fs8s0765rcb Datasheet
fs8s0765rcb
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fs8s0765rcb Summary of contents
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... TM ©2006 Fairchild Semiconductor Corporation FS8S0765RCB Rev. 1.0.2 Description FS8S0765RCB is a Fairchild Power Switch (FPS) that is specially designed for off-line SMPS of CRT monitors with minimal external components. This device is a current mode pulse-width modulated (PWM) controller combined with a high-voltage power SenseFET in a single package ...
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... Internal Block Diagram Vref Burst Mode Detector 5 Soft start Vfb<0.8V & Sync Vss>3V No sync Vcc I delay Vcc Vovp TSD FS8S0765RCB Rev. 1.0.2 Vcc 3 Burst Mode 9V/15V Controller Vref Sync Detector OSC Vref PWM I FB 2.5R R LEB UVLO Reset (Vcc<9V) Figure 1. Functional Block Diagram ...
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... Drain 2 GND 3 Vcc 4 Feedback 5 Soft Start & Sync FS8S0765RCB Rev. 1.0.2 5. Soft Start & Sink 4. Feedback 3. Vcc 2. GND 1. Drain Figure 2. Pin Configuration (Top View) Pin Function Description SenseFET Drain. High voltage power SenseFET drain connection. This pin is designed to drive the transformer directly. ...
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... Operating Junction Temperature j T Operating Ambient Temperature A T Storage Temperature Range STG Notes: 1. Tj=25°C to 150°C 2. Repetitive rating: Pulse width limited by maximum junction temperature 3. L=14mH, starting Tj=25°C 4. L=13μH, starting Tj=25°C FS8S0765RCB Rev. 1.0.2 = 25°C, unless otherwise specified) A Parameter (1) =1MΩ) GS (2) (3) (4) 4 Value Unit ...
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... Fall Time Total Gate Charge Qg (Gate-Source+Gate-Drain) Qgs Gate-Source Charge Qgd Gate-Drain (Miller) Charge Note: Pulse test: Pulse width ≤ 300μS, duty 2% 1. MOSFET switching time is essentially independent of operating temperature. 2. FS8S0765RCB Rev. 1.0.2 Condition Min. V =0V, I =250μA 650 =650V, V =0V - ...
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... OP(MAX) Note: 1. These parameters, although guaranteed at the design, are not tested in mass production. 2. These parameters, although guaranteed, are tested in EDS (wafer test) process. 3. These parameters indicate inductor current. 4. These parameters are the current flowing in the control IC. FS8S0765RCB Rev. 1.0.2 (Continued) Condition V =GND FB ...
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... Temperature [ ° C] Figure 5. Start Threshold Voltage vs. Temp. 1.20 1.15 1.10 1.05 1.00 0.95 0.90 0.85 0.80 -40 - Temperature [ ° C] Figure 7. Initial Freqency vs. Temp. FS8S0765RCB Rev. 1.0.2 = 25°C) A 1.20 1.15 1.10 1.05 1.00 0.95 0.90 0.85 0.80 80 100 120 140 160 -40 Figure 4. Operating Supply Current vs. Temp. 1.20 1.15 1.10 1.05 1.00 0.95 0.90 0.85 0.80 80 100 120 140 160 -40 Figure 6. Stop Threshold Voltage vs. Temp. ...
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... Temperature [ ° C] Figure 11. Shutdown Delay Current vs. Temp. 1.20 1.15 1.10 1.05 1.00 0.95 0.90 0.85 0.80 -40 - Temperature [ ° C] Figure 13. Soft Start Voltage vs. Temp. FS8S0765RCB Rev. 1.0.2 (Continued) = 25°C) A 1.20 1.15 1.10 1.05 1.00 0.95 0.90 0.85 0.80 -40 80 100 120 140 160 Figure 10. Feedback Sink Current vs. Temp. 1.20 1.15 1.10 1.05 1.00 0.95 0.90 0.85 0.80 -40 80 100 120 140 160 Figure 12. Shutdown Feedback Voltage vs. Temp. ...
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... Temperature [ ° C] Figure 17. Feedback Sink Current vs. Temp. 1.20 1.15 1.10 1.05 1.00 0.95 0.90 0.85 0.80 -40 - Temperature [ ° C] Figure 19. Burst Mode High Threshold Voltage vs. Temp. FS8S0765RCB Rev. 1.0.2 (Continued) = 25°C) A 1.20 1.15 1.10 1.05 1.00 0.95 0.90 0.85 0.80 -40 80 100 120 140 160 1.20 1.15 1.10 1.05 1.00 0.95 0.90 0.85 0.80 80 100 120 140 160 -40 Figure 18. Burst Mode Low Threshold Voltage vs. Temp. ...
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... Typical Performance Characteristics (These characteristic graphs are normalized at T 1.20 1.15 1.10 1.05 1.00 0.95 0.90 0.85 0.80 -40 - Temperature [ ° C] Figure 21. Burst Mode Peak Current vs. Temp. FS8S0765RCB Rev. 1.0.2 (Continued) = 25° 100 120 140 160 10 www.fairchildsemi.com ...
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... Functional Description 1. Start up: To guarantee stable operation of the control IC, FS8S0765RCB has UVLO circuit with 6V hysteresis band. Figure 22 shows the relation between the supply current (Icc) and the supply voltage (Vcc). Before Vcc reaches 15V, the FPS consumes only startup current of 80mA, which is usually provided by the DC link through the start-up resistor ...
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... Cfb*(7.5-2.7)/ Figure 27. Overload protection FS8S0765RCB Rev. 1.0.2 3.3 Over Voltage Protection (OVP): In case of malfunction in the primary side feedback circuit or feedback loop open caused by a defect of solder, the current through primary side control transistor becomes almost zero. Then, Vfb climbs similar manner to ...
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... Figure 29. The circuit for the synchronization with external sync 6. Burst mode operation: To minimize the power dissipation at standby mode, FS8S0765RCB has a burst mode operation. In burst mode, the FPS reduces the effective switching frequency and output voltage. The FPS enters burst mode when the voltage of the soft start pin is higher than 3V ...
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... C114 C102 1nF 100nF R104 2.2K C101 TNR F101 FUSE 0 2. Transformer Schematic Diagram Lm : 420uH 40T 4 6 Nvcc : 12T 7 Nreg : 3T 8 FS8S0765RCB Rev. 1.0 C107 R101 10nF/630V 56K/ D101 4 R102 D102 3.3 6 IC101 5 S/S 1 Drain 4 Vfb 2 8 GND ...
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... Nvo5 Insulation: Polyester Tape t = 0.050mm, 2 Layers 6 → 8 Nvcc Outer Insulation: Polyester Tape t = 0.050mm, 2 Layers 4. Electrical Characteristics Inductance Leakage Inductance 5. Core & Bobbin Core: EER 3540 Bobbin: EER3540 Ae(mm2): 107 FS8S0765RCB Rev. 1.0.2 Wire Turns φ × 1 0.3 40 φ × 1 0.3 10 φ × 1 ...
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... C107 10nF/630V C108 22μF/50V C109 47nF/50V C110 1μF/50V C111 0.1μF/50V C112 47μF/50V C113 1μF/50v C114 1nF/50V C115 1nF/50V FS8S0765RCB Rev. 1.0.2 Note Part C201 C202 C203 C204 C205 2W C206 1/4W C207 1W C208 1/4W C209 1/4W C210 1/4W C211 ...
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... Package Dimensions TO-220-5L FS8S0765RCB Rev. 1.0.2 Dimensions in millimeters June 2002, Rev www.fairchildsemi.com ...
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... Package Dimensions (Continued) TO-220-5L (Forming) FS8S0765RCB Rev. 1.0.2 Dimensions in millimeters June 2002, Rev www.fairchildsemi.com ...
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... PRODUCT STATUS DEFINITIONS Definition of Terms Datasheet Identification Advance Information Preliminary No Identification Needed Obsolete FS8S0765RCB Rev. 1.0.2 ISOPLANAR™ PowerEdge™ LittleFET™ PowerSaver™ MICROCOUPLER™ PowerTrench ® MicroFET™ QFET MicroPak™ ...