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FAN7930C Datasheet(PDF) 5 Page - Fairchild Semiconductor |
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FAN7930C Datasheet(HTML) 5 Page - Fairchild Semiconductor |
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5 / 22 page  © 2010 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN7930C • Rev. 1.0.0 5 Electrical Characteristics VCC = 14V, TA = -40°C~+125°C, unless otherwise specified. Symbol Parameter Conditions Min. Typ. Max. Units VCC Section VSTART Start Threshold Voltage VCC Increasing 11 12 13 V VSTOP Stop Threshold Voltage VCC Decreasing 7.5 8.5 9.5 V HYUVLO UVLO Hysteresis 3.0 3.5 4.0 V VZ Zener Voltage ICC=20mA 20 22 24 V VOP Recommended Operating Range 13 20 V Supply Current Section ISTART Startup Supply Current VCC=VSTART-0.2V 120 190 µA IOP Operating Supply Current Output Not Switching 1.5 3.0 mA IDOP Dynamic Operating Supply Current 50kHZ, CI=1nF 2.5 4.0 mA IOPDIS Operating Current at Disable VINV=0V 90 160 230 µA Error Amplifier Section VREF1 Voltage Feedback Input Threshold1 TA=25°C 2.465 2.500 2.535 V ΔVREF1 Line Regulation VCC=14V~20V 0.1 10.0 mV ΔVREF2 Temperature Stability of VREF1 (4) 20 mV IEA,BS Input Bias Current VINV=1V~4V -0.5 0.5 µA IEAS,SR Output Source Current VINV=VREF -0.1V -12 µA IEAS,SK Output Sink Current VINV=VREF +0.1V 12 µA VEAH Output Upper Clamp Voltage VINV=1V, VCS=0V 6.0 6.5 7.0 V VEAZ Zero-Duty Cycle Output Voltage 0.9 1.0 1.1 V gm Transconductance (4) 90 115 140 µmho Maximum On-Time Section tON,MAX1 Maximum On-Time Programming 1 TA=25°C, VZCD=1V 35.5 41.5 47.5 µs tON,MAX2 Maximum On-Time Programming 2 TA=25°C, IZCD=0.469mA 11.2 13.0 14.8 µs Current-Sense Section VCS Current-Sense Input Threshold Voltage Limit 0.7 0.8 0.9 V ICS,BS Input Bias Current VCS=0V~1V -1.0 -0.1 1.0 µA tCS,D Current-Sense Delay to Output (4) dV/dt=1V/100ns, from 0V to 5V 350 500 ns Continued on the following page… |
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