FAN6756 Fairchild Semiconductor, FAN6756 Datasheet
FAN6756
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FAN6756 Summary of contents
Page 1
... The proprietary internal line compensation ensures constant output power limit over entire universal line voltage range. Requiring a minimum number of external components, FAN6756 provides a basic platform that is well suited for cost-effective flyback converter designs that require extremely low standby power consumption. Applications ...
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... Startup VDD 7 UVLO V / DD-ON V RESTART V DD-OVP RTTH1 V RTTH2 © 2011 Fairchild Semiconductor Corporation FAN6756 • Rev. 1.0.4 Figure 1. Typical Application Diagram VDDOVP Latch OTP Protection OLP for ML Brownout Function High/Low Line Compensation V Limit Internal S Q BIAS R OSC Comparator Pattern Generator ...
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... Gate Drive Output. The totem-pole output driver for the power MOSFET; internally limited to 8 GATE V GATE-CLAMP © 2011 Fairchild Semiconductor Corporation FAN6756 • Rev. 1.0.4 ZXYTT 6756MR TPM Figure 3. Top Mark SOP-8 GND 1 ...
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... Fairchild does not recommend exceeding them or designing to Absolute Maximum Ratings. Symbol Parameter R Resistance on HV Pin HV © 2011 Fairchild Semiconductor Corporation FAN6756 • Rev. 1.0.4 Parameter (2,3) =50°C) A All Pins Except HV Pin All Pins Except HV Pin Min. ...
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... Internal Sink Current from V I DD-OLP V in Protection Mode DD-OLP Threshold Voltage for V V DD-OVP Voltage Protection V Over-Voltage Protection DD t D-VDDOVP Debounce Time © 2011 Fairchild Semiconductor Corporation FAN6756 • Rev. 1.0.4 Condition Limited by V OVP DD V Rising DD V Falling DD V Falling DD V Falling DD ...
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... V FB-ZDCR1 Cycle Recovery Threshold Voltage for Zero Duty V FB-ZDC2 Cycle in Standby Mode Threshold Voltage for Zero-Duty V FB-ZDCR2 Cycle Recovery in Standby Mode © 2011 Fairchild Semiconductor Corporation FAN6756 • Rev. 1.0.4 (Continued) Condition V =90V (V =120V = Source Series R=200kΩ Pin DC Source Series R=200kΩ ...
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... × √ When activated, the output is disabled and the controller is latched. 7. The threshold temperature to unlatch and restart output after OTP. © 2011 Fairchild Semiconductor Corporation FAN6756 • Rev. 1.0.4 (Continued) Condition V =122V, Series DC R=200kΩ =366V, Series DC R=200kΩ ...
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... Figure 6. Startup Current (I Figure 8. Start Threshold Voltage (V vs. Temperature Figure 10. Supply Current Drawn from HV Pin (I vs. Temperature Figure 12. Frequency in Normal Mode (f vs. Temperature © 2011 Fairchild Semiconductor Corporation FAN6756 • Rev. 1.0.4 Figure 7. Operation Supply Current (I ) vs. Temperature DD-ST ) Figure 9. Minimum Operating Voltage (V DD-ON ) Figure 11 ...
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... Over-Voltage Protection (V DD vs. Temperature Figure 18. Over-Temperature Protection Threshold Voltage (V ) vs. Temperature RTTH1 Figure 20. Brown-In (V AC-ON © 2011 Fairchild Semiconductor Corporation FAN6756 • Rev. 1.0.4 (Continued) ) Figure 15. Delay Time of FB Pin Open-Loop Protection FB-OLP ) Figure 17. Output Current from RT Pin (I DD-OVP Figure 19. Over-Temperature Protection Threshold ) vs. Temperature Figure 21 ...
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... To prevent entering Standby Mode during dynamic load change, there is 900ms delay. If there are more than 104 consecutive switching pulses during the 900ms delay, FAN6756 does not go into Standby Mode. Once FAN6756 enters Standby Mode, the feedback impedance, Z modulator, as shown in Figure 26. When V ...
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... FAN6756 exits Standby Mode after more than 104 consecutive switching pulses in deep Burst Mode. Once FAN6756 exits Standby Mode, the feedback impedance is modulated to 8.5k ...
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... High/Low Line Compensation for Constant Power Limit FAN6756 has pulse-by-pulse current limit as shown in Figure 29, which limits the maximum input power with a given input voltage. If the output consumes beyond this maximum power, the output voltage drops, triggering the overload protection ...
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... The OTP can be trigged by pulling down the RT pin voltage using an opto-coupler or transistor. Once V less than V (0.7V) for longer than t RTTH2 the protection is triggered and FAN6756 enters Latch Mode protection. When OTP is not used recommended to place a 100kΩ resistor between this pin and ground to prevent noise interference. ...
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... Typical Application Circuit Application 65W Notebook Adapter © 2011 Fairchild Semiconductor Corporation FAN6756 • Rev. 1.0.4 PWM Controller Input Voltage Range FAN6756 Figure 34. Schematic of Typical Application Circuit 14 Output 85V ~ 265V 19V/3.42A AC AC www.fairchildsemi.com ...
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... Insulation: Polyester Tape t = 0.025mm, 3-Layer N4 5 → 6 Insulation: Polyester Tape t = 0.025mm, 3-Layer Electrical Characteristics Primary-Side Inductance Primary-Side Effective Leakage Inductance © 2011 Fairchild Semiconductor Corporation FAN6756 • Rev. 1.0.4 Figure 35. Transformer Specification Wire Turns Winding Method 0.5φ×1 19 Solenoid Winding 0.9φ×1 ...
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... Typical Performance Power Consumption Input Voltage Output Power No Load 230V 0.25W AC 0.5W Efficiency Output Power 16.25W 115V/ 60Hz 88.48% 230V/ 60Hz 88.00% © 2011 Fairchild Semiconductor Corporation FAN6756 • Rev. 1.0.4 Actual Output Power Input Power 0W 0.024W 0.232W 0.339W 0.495W 0.643W 32.5W 48.75W 88.58% 87.45% 87.89% 87.92% 16 Specification Input Power < 0.03W Input Power < ...
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... Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/. © 2011 Fairchild Semiconductor Corporation FAN6756 • Rev. 1.0.4 5.00 4.80 A 3.81 ...
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... Fairchild Semiconductor Corporation FAN6756 • Rev. 1.0.4 18 www.fairchildsemi.com ...