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ML4805 - Variable Feedforward PFC/PWM Controller Combo

General Description

The ML4805 is a controller for power factor corrected, switched mode power supplies.

Similar to the ML4801, the ML4805 may be used for voltage mode operation.

Key Features

  • of this combined PFC and PWM controller are low start-up and operating currents. Power Factor Correction (PFC) allows the use of smaller, lower cost bulk capacitors, reduces power line loading and stress on the switching FETs, and results in a power supply that fully complies with IEC1000-2-3 specifications. The ML4805 includes circuits for the implementation of a leading edge, average current “boost” type power factor correction and a trailing edge pulse width modulator. The PFC frequency of th.

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📁 Similar Datasheet

Part Number Description Manufacturer
ML4805 Variable Feedforward PFC/PWM Controller Combo Micro Linear
ML4800 Power Factor Correction and PWM Controller Combo Micro Linear
ML4801 Variable Feedforward PFC/PWM Controller Combo Micro Linear
ML4802 PFC/PWM Controller Combo with Green Mode Micro Linear
ML4803 8-Pin PFC and PWM Controller Combo Micro Linear

Other Datasheets by Fairchild (now onsemi)

Part Number Description
ML4800 Power Factor Correction and PWM Controller Combo
ML4801 Variable Feedforward PFC/PWM Controller Combo
ML4802 PFC/PWM Controller Combo with Green Mode
ML4803 8-Pin PFC and PWM Controller Combo
ML4804 Power Factor Correction and PWM Controller Combo

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.

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November 1998 PRELIMINARY ML4805 Variable Feedforward PFC/PWM Controller Combo GENERAL DESCRIPTION The ML4805 is a controller for power factor corrected, switched mode power supplies. Similar to the ML4801, the ML4805 may be used for voltage mode operation. Key features of this combined PFC and PWM controller are low start-up and operating currents. Power Factor Correction (PFC) allows the use of smaller, lower cost bulk capacitors, reduces power line loading and stress on the switching FETs, and results in a power supply that fully complies with IEC1000-2-3 specifications. The ML4805 includes circuits for the implementation of a leading edge, average current “boost” type power factor correction and a trailing edge pulse width modulator.