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SG6901ASZ Datasheet(PDF) 8 Page - Fairchild Semiconductor |
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SG6901ASZ Datasheet(HTML) 8 Page - Fairchild Semiconductor |
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8 / 18 page  Product Specification PFC / Flyback PWM Controller SG6901A © System General Corp. - 8 - www.sg.com.tw • www.fairchildsemi.com Version 1.0.1 (IAO33.0062.B0) September 26, 2007 PWM-Current Sense Symbol Parameter Test Conditions Min. Typ. Max. Unit tPD-PWM Propagation Delay to Output VDD=15V,OPWM<=9V 60 120 ns VLIMIT-1 Peak Current Limit Threshold Voltage1 RANGE=Open 0.65 0.70 0.75 V VLIMIT-2 Peak Current Limit Threshold Voltage2 RANGE=Ground 0.60 0.65 0.70 V tLEB-PWM Leading-Edge Blanking Time 270 350 450 ns △ VSLOPE Slope Compensation △ VS=△VSLOPE x (Ton/T) △ VS: Compensation Voltage Added to Current Sense 0.45 0.50 0.55 V PWM Output Driver Symbol Parameter Test Conditions Min. Typ. Max. Unit VZ-PWM Output Voltage Maximum (Clamp) VDD=20V 16 18 V VOL-PWM Output Voltage Low VDD=15V; IO=100mA 1.5 V VOH-PWM Output Voltage High VDD=13V; IO=100mA 8 V tR-PWM Rising Time VDD=15V; CL=5nF; O/P=2V to 9V 30 60 120 ns tF-PWM Falling Time VDD=15V; CL=5nF; O/P=9V to 2V 30 50 110 ns DCYMAXPWM Maximum Duty Cycle 73 78 83 % OTP Section Symbol Parameter Test Conditions Min. Typ. Max. Unit IOTP OTP Pin Output Current RI=24KΩ 90 100 110 µA VOTP-ON Recovery Level on OTP 1.35 1.40 1.45 V VOTP-OFF OTP Threshold Voltage 1.15 1.20 1.25 V tOTP OTP Debounce Time 8 25 µs Soft-Start Section Symbol Parameter Test Conditions Min. Typ. Max. Unit ISS Constant Current Output for Soft-Start RT=24KΩ 44 50 56 µA RD Discharge RDSON 470 Ω |
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