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FAN6982 Scheda tecnica(PDF) 7 Page - Fairchild Semiconductor |
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FAN6982 Scheda tecnica(HTML) 7 Page - Fairchild Semiconductor |
7 / 16 page © 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN6982 • Rev. 1.0.1 7 Electrical Characteristics (Continued) Unless otherwise noted; VDD=15V, TA= 25°C, TA=TJ, RT=27kΩ, and CT=1000pF. Symbol Parameter Conditions Min. Typ. Max. Units Voltage Error Amplifier VREF Reference Voltage 2.45 2.50 2.55 V AV Open-Loop Gain (3) At TA=25°C 35 42 dB GmV Transconductance VNONINV=VINV, VVEA=3.75V at TA=25°C 50 70 90 µmho IFBPFC-L Maximum Source Current VFBPFC=2V, VVEA=1.5V 40 50 µA IFBPFC-H Maximum Sink Current VFBPFC=3V, VVEA=6V -50 -40 µA IBS Input Bias Current -1 1 µA VVEA-H Output High Voltage on VVEA 5.8 6.0 V VVEA-L Output Low Voltage on VVEA 0.1 0.4 V Current Error Amplifier VISENSE Input Voltage Range -1.5 0.7 V AI Open-Loop Gain (3) At TA=25°C 40 50 dB GmI Transconductance VNONINV=VINV, VIEA=3.75V 75 88 100 µmho VOFFSET Input Offset Voltage VVEA=0V, IAC Open -10 10 mV VIEA-H Output High Voltage 6.8 7.4 8.0 V VIEA-L Output Low Voltage 0.1 0.4 V IL Source Current VISENSE= -0.6V, VIEA=1.5V 35 50 µA IH Sink Current VISENSE= +0.6V, VIEA=4.0V -50 -35 µA PFC OVP Comparator VFBPFC-OVP Over Voltage Protection 2.70 2.75 2.80 V △ VFBPFC-OVP PFC OVP Hysteresis 200 250 300 mV Low-Power Detect Comparator VVEA-OFF VEA Voltage Off OPFC 0.2 0.3 0.4 V PFC Soft-Start VVEA_CLAMP PFC Soft-Start VFBPFC < 2.4V 2.2 2.8 3.3 V EN Section VEN-H High Voltage Level of VEN VEN=VVREF 7.4 7.5 7.6 V VEN-L Low Voltage Level of VEN VEN=GND 0 V Range VVRMS-L RMS AC Voltage Low When VVRMS=1.95V at 132VRMS 1.90 1.95 20.00 V VVRMS-H RMS AC Voltage High When VVRMS=2.45V at 150 VRMS 2.40 2.45 2.50 V VVEA-L VEA Low When VVEA=1.95V at 30% Loading 1.90 1.95 2.00 V VVEA-H VEA High When VVEA=2.45V at 40% Loading 2.40 2.45 2.50 V ITC Source Current from FBPFC 18 20 22 µA Continued on the following page… |
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