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FAN7601BGX Datasheet(PDF) 5 Page - Fairchild Semiconductor |
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FAN7601BGX Datasheet(HTML) 5 Page - Fairchild Semiconductor |
5 / 11 page © 2008 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN7601B • Rev.1.0.1 5 Electrical Characteristics TA=-25°C~125°C, VCC=14V, RT=9.5kΩ, CT=2.2nF unless otherwise specified. Symbol Parameter Conditions Min. Typ. Max. Unit Reference Section VREF Reference Output Voltage IO=1mA 4.85 5.00 5.15 V ΔV REF1 Line Regulation VCC=10V~18V 10 20 mV ΔV REF2 Load Regulation IO=1mA ~ 10mA 20 30 mV Oscillator Section fOSC Initial Accuracy 90 100 110 kHz STV Voltage Stability VCC=10V~18V 1.0 1.5 % VOSC Amplitude Vpin4 peak-to-peak 1.25 V PWM Section VCS/FB1 CS/FB Threshold Voltage1 0.9 1.0 1.1 V DMAX Maximum Duty Cycle TA=25°C 92 95 98 % DMIN Minimum Duty Cycle 0 % Burst Mode Section VCS/FB2 CS/FB Threshold Voltage2 (1) 0.77 0.97 1.17 V VCS/FB3 CS/FB Threshold Voltage3 (1) 0.7 0.9 1.1 V Soft-Start Section ISS Soft-Start Current Vpin3=GND 9 12 15 μA VSL Soft-Start Limit Voltage (2) ISS=1μA 1.2 1.5 1.8 V Protection Section VLATCH Latch Voltage 2.25 2.50 2.75 V VOVP Over-Voltage Protection 18 19 20 V UVLO Section VtH Start Threshold Voltage 11 12 13 V VtL Minimum Operating Voltage 7 8 9 V Total Current Section IOP Operating Supply Current 3 4 mA Output Section VOL Low Output Voltage TA=25°C, IO=100mA 2.0 2.5 V VOH High Output Voltage TA=25°C, IO=-100mA 11.5 12.0 14.0 V tr Rising Time (1) TA=25°C, CI=1nF 45 150 ns tf Falling Time (1) TA=25°C, CI=1nF 35 150 ns Startup Section Istr VSTR Startup Current VSTR=30V, TA=25°C 0.5 1.0 1.5 mA Notes: 1. These parameters, although guaranteed, are not 100% tested in production. 2. It is recommended to connect a 1M Ω resistor between the Latch/SS pin and GND to prevent abnormal operation of the latch protection by noise coupling. |
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