FAN7602B Fairchild Semiconductor, FAN7602B Datasheet
FAN7602B
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FAN7602B Summary of contents
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... The maximum power can be limited constantly, regard- less of the line voltage change, using the power limit function. The switching frequency is internally fixed at 65kHz. The FAN7602B includes various protections for the sys- tem reliability and the internal soft-start prevents the out- put voltage over-shoot at start-up. Pb-Free ...
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... OLP 2V/1.5V OVP Latch SS End 10ms Soft Start 65kHz clock Latch/ Latch 2 Plimit 4V Plimit Offset Generator Figure 2. Functional Block Diagram of FAN7602B © 2007 Fairchild Semiconductor Corporation FAN7602B Rev. 1.0.0 FAN7602B Figure 1. Typical Flyback Application V STR 8 Auto Restart Protection Latch Reset Protection Circuit V CC ...
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... LUVP 2 Latch/Plimit 3 CS/FB 4 GND 5 OUT STR © 2007 Fairchild Semiconductor Corporation FAN7602B Rev. 1.0 STR LUVP CS/FB Latch/ Plimit Figure 3. Pin Configuration (Top View) Line Under-Voltage Protection Pin. This pin is used to protect the set when the input voltage is lower than the rated input voltage range ...
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... ESD Capability, Charged Device Model ESD_CDM Thermal Impedance Symbol θ Thermal Resistance, Junction-to-Ambient JA Note: 1. Regarding the test environment and PCB type, please refer to JESD51-2 and JESD51-10. © 2007 Fairchild Semiconductor Corporation FAN7602B Rev. 1.0.0 Parameter Parameter 8-DIP 4 Value Unit 20 V +450/-600 mA -0 ...
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... Line Under-Voltage Protection On V LUVPoff to Off Line Under-Voltage Protection Off V LUVPon Over-Voltage Protection OVP Note: 1. These parameters, although guaranteed by design, are not tested in production. © 2007 Fairchild Semiconductor Corporation FAN7602B Rev. 1.0.0 Condition V = 30V 25°C STR A V increasing CC V decreasing 25° ...
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... Temperature [°C] Figure 6. UVLO Hysteresis vs. Temp. 1.5 1.4 1.3 1.2 1.1 1.0 0.9 0.8 - Temperature [°C] Figure 8. Operating Supply Current vs. Temp. © 2007 Fairchild Semiconductor Corporation FAN7602B Rev. 1.0.0 8.8 8.4 8.0 7.6 7.2 75 100 125 -25 Figure 5. Stop Threshold Voltage vs. Temp. 350 300 250 200 150 75 100 125 -25 Figure 7. Start-up Supply Current vs. Temp. ...
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... Temperature [°C] Figure 12. Offset Gain vs. Temp. 20.0 19.6 19.2 18.8 18.4 18.0 - Temperature [°C] Figure 14. OVP Voltage vs. Temp. © 2007 Fairchild Semiconductor Corporation FAN7602B Rev. 1.0.0 (Continued) 70 CSFB2 CSFB3 -25 75 100 125 Figure 11. Operating Frequency vs. Temp 100 125 -25 Figure 13. Maximum Duty Cycle vs. Temp. ...
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... Typical Performance Characteristics 2.10 2.05 2.00 1.95 1.90 - Temperature [°C] Figure 16. LUVP On-to-Off Voltage vs. Temp. 1.08 1.04 1.00 0.96 0.92 - Temperature [°C] Figure 18. CS/FB Threshold Voltage vs. Temp. © 2007 Fairchild Semiconductor Corporation FAN7602B Rev. 1.0.0 (Continued) 1.70 1.65 1.60 1.55 1.50 1.45 1.40 75 100 125 -25 Figure 17. LUVP Off-to-On Voltage vs. Temp. 75 100 125 100 Temperature [°C] www ...
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... Applications Information 1. Start-up Circuit and Soft Start Block The FAN7602B contains a start-up switch to reduce the power loss of the external start-up circuit of the conven- tional PWM converters. The internal start-up circuit charges the V capacitor with 0.9mA current source if CC the AC line is connected. The start-up switch is turned off 15ms after IC starts up, as shown in Figure 19 ...
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... There- fore, if the input voltage is low, the converter should be protected. In the FAN7602B, the LUVP circuit senses the input voltage using the LUVP pin and, if this voltage is lower than 2V, the LUVP signal is generated. The com- parator has 0 ...
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... R113 C102 C110 R107 R101 C107 C101 FUSE AC INPUT © 2007 Fairchild Semiconductor Corporation FAN7602B Rev. 1.0.0 Input Voltage 48W Universal input (85~265V ) AC voltage higher than 8V when the input voltage is 265V CC voltage lower than OVP when the input voltage is 85V CC voltage lower than maximum rating when the output is shorted. ...
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... Insulation: Polyester Tape t = 0.03mm, 2 Layers 2 → 1 Np2 Outer Insulation: Polyester Tape t = 0.03mm, 2 Layers 4. Electrical Characteristics Inductance Inductance 5. Core & Bobbin Core: EER2828 Bobbin: EER2828 2 Ae(mm ): 82.1 © 2007 Fairchild Semiconductor Corporation FAN7602B Rev. 1.0.0 3mm Shield 5 Shield 5 Figure 26. Inductor Schematic Diagram Wire Turns φ × 2 ...
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... R203 20kΩ R204 27kΩ R205 7kΩ R206 10Ω R207 10kΩ IC IC101 FAN7602B IC201 KA431 OP1, OP2 H11A817B © 2007 Fairchild Semiconductor Corporation FAN7602B Rev. 1.0.0 Note Part C101 C102 C103, C104 C105 1/4W C106 1/2W C107 1/4W C108 1/4W C109 1/2W C110 1/4W C201, C202 ...
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... PCB Layout DC Link Figure 27. PCB Layout Recommendations for FAN7602B 8. Performance Data Input Power at No Load Input Power at 0.5W Load OLP Point © 2007 Fairchild Semiconductor Corporation FAN7602B Rev. 1.0.0 Minimize leakage inductance Out STR Latch/ ...
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... Mechanical Dimensions 8-DIP Dimensions are in inches (millimeters) unless otherwise noted. © 2007 Fairchild Semiconductor Corporation FAN7602B Rev. 1.0.0 Figure 28. 8-Lead Small Dual In-line Package (DIP) 15 www.fairchildsemi.com ...
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... Mechanical Dimensions 8-SOP Dimensions are in millimeters unless otherwise noted. © 2007 Fairchild Semiconductor Corporation FAN7602B Rev. 1.0.0 (Continued) Figure 29. 8-Lead Small Outline Package (SOP) 16 www.fairchildsemi.com ...
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... Definition of Terms Datasheet Identification Product Status Advance Information Formative or In Design Preliminary First Production No Identification Needed Full Production Obsolete Not In Production © 2007 Fairchild Semiconductor Corporation FAN7602B Rev. 1.0.0 HiSeC Programmable Active Droop ® QFET i-Lo QS ImpliedDisconnect QT Optoelectronics IntelliMAX Quiet Series ISOPLANAR RapidConfigure ...