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This literature is subject to all applicable copyright laws and is not for resale in any manner.FAN6920MR mWSaver Technology Integrated Critical-Mode PFC and Quasi-Resonant Current-Mode PWM Controller February 2013 FAN6920MR mWSaver Technology Integrated Critical-Mode PFC and Quasi-Resonant Current-Mode PWM Controller Features Description mWSaver Technology Provides Industry s Best- The highly integrated FAN6920MR combines Power in-Class Standby Power Factor Correction (PFC) controller and quasi-resonant PWM controller. Integration provides cost-effective - Internal High-Voltage JFET Startup design and reduces external components. - Adaptive Off-Time Modulation of t for QR OFF-MIN PWM Stage, Improved Light-Load Efficiency For PFC, FAN6920MR uses a controlled on-time technique to provide a regulated DC output voltage and - PFC Burst or Shutdown at Light-Load Condition to perform natural power-factor correction. With an - Optimized for Dual Switch Flyback Design to innovative THD optimizer, FAN6920MR can reduce Achieve > 90% Efficiency While Meeting 2013 input current distortion at zero-crossing duration to ErP lot 6 Standby Power Requirement improve THD performance. Integrated PFC and Flyback Controller For PWM, FAN6920MR provides several functions to Critical-Mode PFC Controller enhance the power system performance: valley detection, green-mode operation, and high / low line over-power Zero-Current Detection for PFC Stage compensation. Protection functions include secondary- Quasi-Resonant Operation for PWM Stage side open-loop and over-current with auto-recovery protection external auto-recovery triggering adjustable Internal 5 ms Soft-Start for PWM over-temperature protection by the RT pin and external NTC resistor, internal over-temperature shutdown, V Brownout Protection DD pin OVP, and the DET pin over-voltage for output OVP, High / Low Line Over-Power Compensation and brown-in / out for AC input voltage UVP. Auto-Recovery Over-Current Protection The FAN6920MR controller is available in a 16-pin Auto-Recovery Open-Loop Protection small-outline package (SOP). Externally Auto-Recovery Triggering (RT Pin) Related Resources Adjustable Over-Temperature Protection Evaluation Board: FEBFAN6920MR T02U120A VDD Pin and Output Voltage OVP (Auto-Recovery) Internal Over-Temperature Shutdown (140C) Applications AC/DC NB Adapters Open-Frame SMPS Battery Charger Ordering Information Operating Packing Part Number OLP Mode Package Temperature Range Method FAN6920MRMY Recovery -40C to +105C 16-Pin Small Outline Package (SOP) Tape & Reel 2012 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN6920MR Rev. 1.0.8