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FAN4801S - PFC/PWM Controller Combination

Download the FAN4801S datasheet PDF. This datasheet also covers the FAN4800AS variant, as both devices belong to the same pfc/pwm controller combination family and are provided as variant models within a single manufacturer datasheet.

General Description

The highly integrated FAN4800AS/CS/01S/02S parts are specially designed for power supplies that consist of boost PFC and PWM.

They require very few external components to achieve versatile protections / compensation.

They are available in 16-pin DIP and SOP packages.

Key Features

  • Pin-to-Pin Compatible with ML4800 and FAN4800 and CM6800 and CM6800A.
  • PWM Configurable for Current Mode or Feedforward Voltage-Mode Operation.
  • Internally Synchronized Leading-Edge PFC and Trailing-Edge PWM in One IC.
  • Low Operating Current.
  • Innovative Switching-Charge Multiplier Divider.
  • Average-Current Mode for Input-Current Shaping.
  • PFC Over-Voltage and Under-Voltage Protections.
  • PFC Feedback Open-Loop Protection.
  • Cycle-by-Cycle Current Limiting for.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (FAN4800AS-FairchildSemiconductor.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
FAN4801S PFC/PWM Controller Combination ON Semiconductor
FAN4800AS PFC/PWM Controller Combination ON Semiconductor
FAN4800CS PFC/PWM Controller Combination ON Semiconductor
FAN4802S PFC/PWM Controller Combination ON Semiconductor
FAN4860 Synchronous Regulator ON Semiconductor

Other Datasheets by Fairchild (now onsemi)

Part Number Description
FAN4801 PFC/PWM Controller Combination
FAN4800 Low Start-Up Current PFC/PWM Controller Combos
FAN4800A PFC/PWM Controller Combination
FAN4800AS PFC/PWM Controller Combination
FAN4800AU PFC/PWM Controller Combination

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
FAN4800AS/CS/01S/02S — PFC/PWM Controller Combination January 2014 FAN4800AS/CS/01S/2S PFC/PWM Controller Combination Features  Pin-to-Pin Compatible with ML4800 and FAN4800 and CM6800 and CM6800A  PWM Configurable for Current Mode or Feedforward Voltage-Mode Operation  Internally Synchronized Leading-Edge PFC and Trailing-Edge PWM in One IC  Low Operating Current  Innovative Switching-Charge Multiplier Divider  Average-Current Mode for Input-Current Shaping  PFC Over-Voltage and Under-Voltage Protections  PFC Feedback Open-Loop Protection  Cycle-by-Cycle Current Limiting for PFC/PWM  Power-on Sequence Control and Soft-Start  Brownout Protection  Interleaved PFC/PWM Switching  Improved Efficiency at Light Load  fRTCT=4•fPFC=4•fPWM for FAN4800AS/01S  fRTCT=4•fPFC=2•fPWM fo