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FAN4800IN 数据表(PDF) 7 Page - Fairchild Semiconductor |
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FAN4800IN 数据表(HTML) 7 Page - Fairchild Semiconductor |
7 / 20 page © 2005 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN4800 Rev. 1.0.5 7 Electrical Characteristics (Continued) Unless otherwise stated, these specifications apply: VCC = 15V, RT = 52.3kΩ, CT = 470pF, TA = -40°C to 125°C. Notes: 1. This parameter, although guaranteed by design, is not 100% production tested. 2. Includes all bias currents to other circuits connected to the VFB pin. 3. Gain = K × 5.375V; K = (ISENSE – IOFFSET) × [IAC × (VEAO – 0.625)] -1; V EAO (MAX.) = 6V. Symbol Parameter Condition Min. Typ. Max. Unit PFC Dmin. Minimum Duty Cycle VIEAO > 4.0V 0 % Dmax. Maximum Duty Cycle VIEAO < 1.2V 92 95 % RON(low)1 Output Low Rdson IOUT = -20mA at TA = 25°C 15 Ω RON(low)2 IOUT = -100mA at TA = 25°C 15 Ω Vol1 Output Low Voltage(1) IOUT = -10mA, VCC = 9V, TA = 25°C 0.4 0.8 V RON(high)1 Output High Rdson IOUT = 20mA at TA = 25°C 15 20 Ω RON(high)2 IOUT = 100mA at TA = 25°C 15 20 Ω tr(pfc) Rise/Fall Time(1) CL = 1000pF 50 ns PWM D Duty Cycle Range 0-42 0-47 0-49 % RON(low)3 Output Low Rdson IOUT = -20mA at TA = 25°C 15 Ω RON(low)4 IOUT = -100mA at TA = 25°C 15 Ω Vol2 Output Low Voltage IOUT = -10mA, VCC = 9V, TA = 25°C 0.4 0.8 V RON(high)3 Output High Rdson IOUT = 20mA at TA = 25°C 15 20 Ω RON(high)4 IOUT = 100mA at TA = 25°C 15 20 Ω tr(pwm) Rise/Fall Time CL = 1000pF (1) 50 ns PWM(ls) PWM Comparator Level Shift 0.6 0.9 1.2 V SUPPLY Ist Start-up Current VCC = 12V, CL = 0pF 100 200 µA Iop Operating Current 14V, CL = 0pF 2.5 7.0 mA Vth(start) Under-Voltage Lockout Threshold 12.74 13.00 13.26 V Vth(hys) Under-Voltage Lockout Hysteresis 2.80 3.00 3.20 V |
类似零件编号 - FAN4800IN |
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类似说明 - FAN4800IN |
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