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FAN6920MR Datasheet(PDF) 1 Page - Fairchild Semiconductor |
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FAN6920MR Datasheet(HTML) 1 Page - Fairchild Semiconductor |
1 / 24 page April 2011 © 2010 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN6920MR • Rev. 1.0.3 FAN6920MR Integrated Critical-Mode PFC and Quasi-Resonant Current-Mode PWM Controller Features Integrated PFC and Flyback Controller Critical-Mode PFC Controller Zero-Current Detection for PFC Stage Quasi-Resonant Operation for PWM Stage Internal Minimum 5µs tOFF for QR PWM Stage Internal 5ms Soft-Start for PWM Brownout Protection High / Low Line Over-Power Compensation Auto-Recovery Over-Current Protection Auto-Recovery Open-Loop Protection Externally Auto-Recovery Triggering (RT Pin) Adjustable Over-Temperature Protection VDD Pin and Output Voltage OVP (Auto-Recovery) Internal Over-Temperature Shutdown (140°C) Applications AC/DC NB Adapters Open-Frame SMPS Battery Charger Description The highly integrated FAN6920MR combines Power Factor Correction (PFC) controller and quasi-resonant PWM controller. Integration provides cost-effective design and reduces external components. For PFC, FAN6920MR uses a controlled on-time technique to provide a regulated DC output voltage and to perform natural power-factor correction. With an innovative THD optimizer, FAN6920MR can reduce input current distortion at zero-crossing duration to improve THD performance. For PWM, FAN6920MR provides several functions to enhance the power system performance: valley detection, green-mode operation, and high / low line over-power compensation. Protection functions include secondary-side open-loop and over-current with auto- recovery protection; external auto-recovery triggering; adjustable over-temperature protection by RT pin; and external NTC resistor, internal over-temperature shutdown, VDD pin OVP, and DET pin over-voltage for output OVP, and brown-in / out for AC input voltage UVP. The FAN6920MR controller is available in a 16-pin small-outline package (SOP). Ordering Information Part Number OLP Mode Operating Temperature Range Package Packing Method FAN6920MRMY Recovery -40°C to +105°C 16-Pin Small Outline Package (SOP) Tape & Reel |
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