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ML4802 - PFC/PWM Controller Combo with Green Mode

General Description

The ML 4802 is a controller for power factor corrected, switched mode power supplies that offers Green Mode operation and reduced start-up and operating currents.

Green Mode is an efficiency improving circuit feature which operates automatically in low power situations.

Key Features

  • Internally synchronized PFC and PWM in one IC Green Mode maximizes efficiency during low power standby operation Low supply current (Start-up 200µA typ. , operating 5.5mA typ. ) Average current continuous boost leading edge PFC High efficiency trailing edge PWM can be configured for current mode operation Reduced ripple current in the storage capacitor between the PFC and PWM sections PFC overvoltage comparator eliminates output “runaway” due to load removal Current fed gain modulator for improved.

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📁 Similar Datasheet

Part Number Description Manufacturer
ML4802 PFC/PWM Controller Combo with Green Mode Micro Linear
ML4800 Power Factor Correction and PWM Controller Combo Micro Linear
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ML4803 8-Pin PFC and PWM Controller Combo Micro Linear
ML4804 Power Factor Correction 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
ML4803 8-Pin PFC and PWM Controller Combo
ML4804 Power Factor Correction and PWM Controller Combo
ML4805 Variable Feedforward PFC/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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December 2000 PRELIMINARY ML4802 PFC/PWM Controller Combo with Green Mode GENERAL DESCRIPTION The ML 4802 is a controller for power factor corrected, switched mode power supplies that offers Green Mode operation and reduced start-up and operating currents. Green Mode is an efficiency improving circuit feature which operates automatically in low power situations. This feature helps meet the demands of Energy Star™ programs. Power Factor Correction (PFC) offers the use of lower cost bulk capacitors, reduces power line loading and stress on the switching FETs. The ML4802 includes circuits for the implementation of a leading edge, average current, “boost” type power factor corrector and a trailing edge Pulse Width Modulator (PWM).