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FAN48002S Folha de dados(PDF) 8 Page - Fairchild Semiconductor |
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FAN48002S Folha de dados(HTML) 8 Page - Fairchild Semiconductor |
8 / 19 page © 2010 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN4800AS/CS/01S/02S • Rev. 1.0.1 8 Electrical Characteristics Unless otherwise noted, VDD=15V, TA= 25°C, TA=TJ, RT=6.8kΩ, and CT=1000pF. Symbol Parameter Conditions Min. Typ. Max. Unit VDD Section VDD-OP Continuously Operating Voltage 26 V IDD ST Startup Current VDD=VTH-ON-0.1V; OPFC OPWM Open 30 80 µA IDD-OP Operating Current VDD=13V; OPFC OPWM Open 2.0 2.6 5.0 mA VTH-ON Turn-on Threshold Voltage 10 11 12 V ΔVTH Hysteresis 1.3 1.9 V VDD-OVP VDD OVP 27 28 29 V ΔVDD-OVP VDD OVP Hysteresis 1 V Oscillator fOSC-RT/CT RT/CT Frequency RT=6.8kΩ, CT=1000pF 240 256 268 kHz fOSC PFC & PWM Frequency RT=6.8kΩ, CT=1000pF 60 64 67 kHz PWM Frequency 120 128 134 fDV Voltage Stability (3) 11V ≦ VDD ≦ 22V 2 % fDT Temperature Stability (3) -40°C ~ +105°C 2 % fTV Total Variation (PFC & PWM) (3) Line, Temperature 58 70 kHz fRV Ramp Voltage Valley to Peak 2.8 V IOSC-DIS Discharge Current VRAMP=0V, VRT/CT=2.5V 6.5 15.0 mA fRANGE Frequency Range 50 75 kHz tPFC-DEAD PFC Dead Time RT = 6.8kΩ, CT = 1000pF 400 600 800 ns VREF VVREF Reference Voltage IREF=0mA, CREF=0.1µF 7.4 7.5 7.6 V ΔVVREF1 Load Regulation of Reference Voltage CREF=0.1µF, IREF=0mA to 3.5mA VVDD=14V, Rise/Fall Time > 20µs 30 50 mV ΔVVREF2 Line Regulation of Reference Voltage CREF=0.1µF, VVDD=11V to 22V 25 mV ΔVVREF-DT Temperature Stability (3) -40°C ~ +105°C 0.4 0.5 % ΔVVREF-TV Total Variation (3) Line, Load, Temp 7.35 7.65 V ΔVVREF-LS Long-Term Stability (3) TJ=125°C, 0 ~ 1000HRs 5 25 mV IREF-MAX Maximum Current VVREF > 7.35V 5 mA PFC OVP Comparator VPFC-OVP Over-Voltage Protection 2.70 2.75 2.80 V ΔVPFC-OVP PFC OVP Hysteresis 200 250 300 mV Low-Power Detect Comparator VVEAOFF VEA Voltage OFF OPFC 0.2 0.3 0.4 V VIN OK Comparator VRD-FBPFC Voltage Level on FBPFC to Enable OPWM During Startup 2.3 2.4 2.5 V ΔVRD-FBPFC Hysteresis 1.15 1.25 1.35 V Continued on the following page… |
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