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ML4824

Fairchild
Part Number ML4824
Manufacturer Fairchild
Description Power Factor Correction and PWM Controller Combo
Published May 7, 2005
Detailed Description December 2000 ML4824 Power Factor Correction and PWM Controller Combo GENERAL DESCRIPTION The ML4824 is a controller fo...
Datasheet PDF File ML4824 PDF File

ML4824
ML4824

Overview
December 2000 ML4824 Power Factor Correction and PWM Controller Combo GENERAL DESCRIPTION The ML4824 is a controller for power factor corrected, switched mode power supplies.
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 specification.
The ML4824 includes circuits for the implementation of a leading edge, average current, “boost” type power factor correction and a trailing edge, pulse width modulator (PWM).
The device is available in two versions; the ML4824-1 (fPWM = fPFC) and the ML4824-2 (fPWM = 2 x fPFC).
Doubling the switching frequency of the PWM allows the user to design with smaller output components while maintaining the best operating frequency for the PFC.
An over-voltage comparator shuts down the PFC section in the event of a sudden decrease in load.
The PFC section also includes peak current limiting and inp...


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