ML4812 Datasheet - Fairchild

ML4812 Power Factor Controller

The ML4812 is designed to optimally facilitate a peak current control boost type power factor correction system. Special care has been taken in the design of the ML4812 to increase system noise immunity. The circuit includes a precision reference, gain modulator, error amplifier, overvoltage protect.

ML4812 Features

* s s Precision buffered 5V reference (± 0.5%) Current-input gain modulator reduces external components and improves noise immunity Programmable ramp compensation circuit 1A peak current totem-pole output drive Overvoltage comparator helps prevent output voltage “runaway” Wide common mode range in cu

ML4812_FairchildSemiconductor.pdf