NCP4302 - Synchronous Rectification Controller

Datasheet Summary

Description

Description Connected to the flyback winding.

The current on this pin is sensed and used to turn on the Synchronous Rectification MOSFET (SRFET).

Features

Self.
contained Control of Synchronous Rectifier in CCM, DCM, and QR Flyback.

ON Semiconductor

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Datasheet Details

Part number	NCP4302
Manufacturer	ON Semiconductor
File Size	184.37 KB
Description	Synchronous Rectification Controller
Datasheet	NCP4302 Datasheet
Additional preview pages of the NCP4302 datasheet.

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Full PDF Text Transcription

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NCP4302 Secondary Side Synchronous Flyback Controller The NCP4302 is a full featured controller and driver that provide all the control and protection functions necessary for implementing a synchronous rectifier operation in a flyback converter. With the use of the NCP4302, the space conscious flyback applications such as Adaptors, chargers, set top boxes can achieve significant efficiency improvements at minimal extra cost. In addition to the synchronous rectifier control, the IC incorporates an accurate TL431 type shunt regulator, current monitoring circuit and optocoupler driver to provide a single IC secondary solution. The NCP4302 works with any type of flyback topology (continuous mode, Quasi−resonant mode or discontinuous mode) – providing a high level of versatility.

Published: Aug 13, 2007 |