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FAN400A Scheda tecnica(PDF) 6 Page - Fairchild Semiconductor |
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FAN400A Scheda tecnica(HTML) 6 Page - Fairchild Semiconductor |
6 / 15 page © 2008 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN400A Rev. 1.0.2 6 Electrical Characteristics (Continued) Unless otherwise noted, VDD=15V and TA=25°C. Symbol Parameter Conditions Min. Typ. Max. Units Oscillator Section Center Frequency 60 65 70 fOSC Frequency Hopping Range ± 4.1 ± 4.6 ± 5.1 kHz tHOP Hopping Period 4 ms fOSC-G Green Mode Frequency 14.5 17.0 19.5 KHz VFB-N Green Mode Entry FB Voltage 2.3 2.6 2.9 V VFB-G Green Mode Ending FB Voltage VFB-N - 0.75 V VFB-Z Zero Duty Cycle FB Voltage 1.4 V SG Green Mode Modulation Slope 40 70 100 Hz/mV fDV Frequency Variation vs. VDD Deviation VDD=10 to 22V 2 % fDT Frequency Variation vs. Temperature Deviation TA=-20 to 85°C 1.5 5.0 % Output Section DCYMAX Maximum Duty Cycle 68 73 78 % VGATE-L GATE Low Voltage IO=10mA 1.5 V VGATE-H GATE High Voltage IO=-10mA 8 V tr GATE Rising Time CL=1nF 150 200 250 ns tf GATE Falling Time CL=1nF 70 90 110 ns VGATE- CLAMP GATE Output Clamping Voltage VDD=20V 16 17 18 V Over Temperature Protection (OTP) TOTP Protection Junction Temperature 140 °C TOTP- RESTART Restart Junction Temperature 110 °C |
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