ML4821 Datasheet (Micro Linear) - Power Factor Controller

ML4821, Power Factor Controller

The ML4821 provides complete control for a “boost” type power factor correction system using the average current sensing method.

Special care has been taken in the design of the ML4821 to increase system noise immunity.

The circuit includes a precision reference, gain modulator, average current erro

ML4821 Features

* s s s s s s s s s Average current sensing for lowest possible harmonic distortion Average line compensation with brown-out control Precision buffered 5V reference 1A peak current totem-pole output drive Overvoltage comparator eliminates output “runaway” due to load removal Wide common mode range in