FAN6204MY
FAN6204MY Datasheet
FAN6204 Synchronous Rectification Controller for Flyback and Forward Freewheeling Rectification
| Part | Datasheet |
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FAN6204MY |
FAN6204MY (pdf) |
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| FAN6204 Synchronous Rectification Controller for Flyback and Forward Freewheeling Rectification February 2016 FAN6204 mWSaver Synchronous Rectification Controller for Flyback and Forward Freewheeling Rectification • mWSaver Technology: - Internal Green Mode to Stop SR Switching for Lower No-Load Power Consumption - mA Ultra-Low Green Mode Operating Current • SR Controller • Suited for Flyback Converter in QR, DCM, and CCM Operation • Suited for Forward Freewheeling Rectification • PWM Frequency Tracking with Secondary-Side Winding Voltage Detection • Ultra-Low VDD Operating Voltage for Various Output Voltage Applications 5 V~24 V • VDD Pin Over-Voltage Protection OVP • 12 V Typical Gate Driver Clamp • 8-Pin SOP Package • AC/DC NB Adapters • Open-Frame SMPS • Battery Charger FAN6204 is a secondary-side synchronous rectification SR controller to drive SR MOSFET for improving efficiency. The IC is suitable for flyback converters and forward free-wheeling rectification. FAN6204 can be applied in continuous or discontinuous conduction mode CCM and DCM and quasi-resonant QR flyback converters based on the proprietary innovative linear-predict timing-control technique. The benefits of this technique include a simple control method without current-sense circuitry to accomplish noise immunity. With PWM frequency tracking and secondary-side winding voltage detection, FAN6204 can operate in both fixed- and variable-frequency systems. In Green Mode, the SR controller stops all SR switching operation to reduce the operating current. Power consumption is maintained at minimum level in lightload condition. Ordering Information Part Number FAN6204MY Operating Temperature Range -40°C to +105°C Package 8-Pin, Small Outline Package SOP Packing Method Tape & Reel FAN6204 Synchronous Rectification Controller for Flyback and Forward Freewheeling Rectification Application Diagrams VOUT VDET Q1 GATE VDD VLPC LPC 8 FAN6204 VRES AGND VOUT Q2 GATE VDD LPC 8 FAN6204 GND AGND Figure Typical Application Circuit for Flyback Converter Figure Typical Application Circuit for Forward Freewheeling Rectification Internal Block Diagram VDD 5 LPC 8 950K Calculate VLPC-EN VLPC-EN 0.05VDD 4.8V/4.5V 27.5V/25.4V Rising Edge 1µs Blanking 0.05VDD + SQ RQ Green Mode tDIS PWM Block Frequency Tracking Detector Enable |
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