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FAN6793MY データシート(PDF) 9 Page - Fairchild Semiconductor |
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FAN6793MY データシート(HTML) 9 Page - Fairchild Semiconductor |
9 / 19 page © 2008 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN6791 / FAN6793 • Rev. 1.0.2 9 Electrical Characteristics VDD=18V; RI=24kΩ;TA =25°C, unless noted. Symbol Parameter Conditions Min. Typ. Max. Units Forward PWM Stage FBPWM-Feedback Input AV FB to Current Comparator Attenuation 1/3.2 1/2.7 1/2.2 V/V ZFB Input Impedance 4 5 7 kΩ VHGH Output High Voltage FB Pin Open 5.0 5.2 V VOPEN-PWM PWM Open-Loop Protection Voltage 4.2 4.5 4.8 V tOPEN-PWM- HICCUP Interval of PWM Open-Loop Protection Reset RI=24kΩ 500 600 700 ms tOPEN-PWM PWM Open-Loop Protection Delay Time RI=24kΩ 80 95 120 ms VOZ-OPWM VFBPWM for Zero Duty Cycle 1.2 1.3 1.4 V IPWM-Current Sense tPD Propagation Delay to Output – VLIMIT Loop VDD=15V, OPWM Drops to 9V 60 120 ns VLIMIT1 Peak Current Limit Threshold Voltage 1 VRMS=1V 0.75 0.80 0.85 V VLIMIT2 Peak Current Limit Threshold Voltage 2 VRMS=1.5V VLIMIT1-0.1 V tBNK Leading-Edge Blanking Time 270 350 450 ns ΔVSLOPE Slope Compensation ΔVs=ΔVSLOPE x (ton/t) ΔVs: Compensation Voltage Added to Current Sense 0.40 0.45 0.55 V OPWM-GATE Driver VOPWM-CLAMP Output Voltage Maximum (Clamp) VDD=22V 16 18 V VOL Output Voltage Low VDD=15V; IO=100mA 1.5 V VOH Output Voltage High VDD=13V; IO=100mA 8 V tR Rising Time VDD=15V; CL=5nF; O/P=2V to 9V 30 60 120 ns tF Falling Time VDD=15V; CL=5nF; O/P=9V to 2V 30 50 110 ns FAN6791 Maximum Duty Cycle 47 48 49 DCYMAX-OPWM FAN6793 Maximum Duty Cycle RI=24kΩ 60 65 70 % Soft Start ISS Constant Current Output for Soft-Start RI=24kΩ 17 20 23 µA RD Discharge Resistance 470 564 Ω Notes: 1. When activated, the output is disabled and the latch is turned off. 2. This is the threshold temperature for enabling the output again and resetting the latch after over-temperature protection has been activated. |
同様の部品番号 - FAN6793MY |
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同様の説明 - FAN6793MY |
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