NCP1631 Datasheet (ON Semiconductor) - 2-Phase Power Factor Controller

NCP1631, 2-Phase Power Factor Controller

DATA SHEET www.onsemi.com Interleaved, 2-Phase Power Factor Controller NCP1631 The NCP1631 integrates a dual MOSFET driver for interleaved PFC applications.

Interleaving consists of paralleling two small stages in lieu of a bigger one, more difficult to design.

This approach has several merits like the ease of implementation, the use of smaller components or a better distribution of the heating.

Also, Interleaving extends the power range of Critical Conduction Mode that is an efficient and cost

NCP1631 Features

* necessary for building robust and compact interleaved PFC stages, with a minimum of external components. General Features

* Near

* Unity Power Factor

* Substantial 180 Phase Shift in All Conditions Including Transient Phases

* Frequency Clamped Critical Conduction Mode (FCCrM) i.e