FAN4802NY

Product Summary

The FAN4802NY is a PFC/PWM Controller Combination. The FAN4802NY is specially designed for power supplies that consist of boost PFC and PWM. It requires very few external components to achieve versatile protections / compensation. The device is available in 16-pin DIP and SOP packages. The PWM can be used in either current or voltage mode. In voltage mode, feed-forward from the PFC output bus can reduce the secondary output ripple. The applications of the FAN4802NY include Desktop PC Power Supply, Internet Server Power Supply, LCD TV, Monitor Power Supply, UPS, Battery Charger, DC Motor Power Supply, Monitor Power Supply, Telecom System Power Supply, Distributed Power.

Parametrics

FAN4802NY absolute maximum ratings: (1)DC Supply Voltage, VDD: 30 V; (2)SS, FBPWM, RAMP, OPWM, OPFC, VH: -0.3 to 30.0 V; (3)IAC, VRMS, RT/CT, ILIMIT, FBPFC, VEA, VL: -0.3 to 7.0 V; (4)VREF, VVREF: 7.5 V; (5)IEA, VIEA: 0 to VVREF+0.3 V; (6)ISENSE, VN: -5.0 to 0.7 V; (7)Input AC Current, IAC: 1 mA; (8)VREF Output Current, IREF: 5 mA; (9)Peak PFC OUT Current, Source or Sink, IPFC-OUT: 0.5 A; (10)Peak PWM OUT Current, Source or Sink, IPWM-OUT: 0.5 A; (11)Power Dissipation TA < 50℃, PD: 800 mW; (12)Thermal Resistance (Junction to Air), DIP, Rj-a: 80.80℃/W; SOP, Rj-a: 104.10℃/W; (13)Operating Junction Temperature, TJ: -40 to +125℃; (14)Storage Temperature Range, TSTG: -55 to +150℃; (15)Lead Temperature (Soldering), TL: +260℃; (16)Electrostatic Discharge Capability, Human Body Model, ESD: 4.5 kV; Charged Device Model, ESD: 1000 V.

Features

FAN4802NY features: (1)Pin-to-Pin Compatible with ML4800 and FAN4800 and CM6800 and CM6800A; (2)PWM Configurable for Current-mode or Feed-forward Voltage-Mode Operation; (3)Internally Synchronized Leading-Edge PFC and Trailing-Edge PWM in one IC; (4)Low Operating Current; (5)Innovative Switching-Charge Multiplier Divider; (6)Average-Current-Mode for Input-Current Shaping; (7)PFC Over-Voltage and Under-Voltage Protections; (8)PFC Feedback Open-Loop Protection; (9)Cycle-by-Cycle Current Limiting for PFC/PWM; (10)Power-on Sequence Control and Soft-Start; (11)Brownout Protection; (12)Interleaved PFC/PWM Switching; (13)FAN4801/1S/2/2L Improve Efficiency at Light Load; (14)fRTCT=4.fPFC=4.fPWM for FAN4800A and FAN4801/1S; (15)fRTCT=4.fPFC=2.fPWM for FAN4800C and FAN4802/2L.

Diagrams