Product Summary

The FAN4803 is a space-saving controller for power factor corrected, switched mode power supplies that offers very 
low start-up and operating currents.

Parametrics

Absolute Maximum Ratings:

  1. ICC, Current (average) :40 mA
  2. VCC MAX :18.3 V
  3. ISENSE Voltage: -5 to 1 V
  4. Voltage on Any Other Pin: GND-0.3V to VCC + 0.3 V
  5. Peak PFC OUT Current, Source or Sink: 1 A
  6. Peak PWM OUT Current, Source or Sink: 1 A
  7. PFC OUT, PWM OUT Energy Per Cycle: 1.5 μJ
  8. Junction Temperature: 150℃
  9. Storage Temperature Range: -65℃ to 150℃
  10. Lead Temperature (Soldering, 10 sec): 260℃
  11. Thermal Resistance (θJA), Plastic DIP :110°C/W;Plastic SOIC:160°C/W


Features

? Internally synchronized PFC and PWM in one 8-pin IC
? Patented one-pin voltage error ampli?er with advanced input current shaping technique
? Peak or average current, continuous boost, leading edge PFC (Input Current Shaping Technology)
? High ef?ciency trailing-edge current mode PWM
? Low supply currents; start-up: 150μA typ., operating: 2mA typ.
? Synchronized leading and trailing edge modulation
? Reduces ripple current in the storage capacitor between the PFC and PWM sections
? Overvoltage, UVLO, and brownout protection 
? PFC VCCOVP with PFC Soft Start

Diagrams