ncp1652 ON Semiconductor, ncp1652 Datasheet

ncp1652

Manufacturer Part Number

ncp1652

Description

Power Factor Controllers

Manufacturer

ON Semiconductor

Datasheet

1.NCP1652.pdf (34 pages)

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Download datasheet (332Kb)

NCP1652

High-Efficiency Single

Stage Power Factor

Correction and Step-Down

Controller

power factor correction (PFC) and isolated step down ac−dc power

conversion in a single stage, resulting in a lower cost and reduced part

count solution. This controller is ideal for notebook adapters, battery

chargers and other off−line applications with power requirements

between 75 W and 150 W. The single stage is based on the flyback

converter and it is designed to operate in continuous conduction

(CCM) or discontinuous conduction (DCM) modes.

secondary driver with adjustable nonoverlap delay for controlling a

synchronous rectifier switch in the secondary side, an active clamp

switch in the primary or both. In addition, the controller features a

proprietary Soft−Skip™ to reduce acoustic noise at light loads. Other

features found in the NCP1652 include a high voltage startup circuit,

voltage feedforward, brown out detector, internal overload timer, latch

input and a high accuracy multiplier.

Features

•

Typical Applications

•

June, 2008 − Rev. 0

The NCP1652 is a highly integrated controller for implementing

The NCP1652 increases the system efficiency by incorporating a

Driving a Synchronous Rectifier Switch, an Active Clamp Switch or

Both

Overvoltage and Overtemperature Fault Detectors

Dual Control Outputs with Adjustable Non Overlap Delay for

Voltage Feedforward Improves Loop Response

Frequency Jittering Reduces EMI Signature

Proprietary Soft−Skip™ at Light Loads Reduces Acoustic Noise

Brown Out Detector

Internal 150 ms Fault Timer

Independent Latch−Off Input Facilitates Implementation of

Single Stage PFC and Isolated Step Down Converter

Continuous or Discontinuous Conduction Mode Operation

Average Current Mode Control (ACMC), Fixed Frequency Operation

High Accuracy Multiplier Reduces Input Line Harmonics

Adjustable Operating Frequency from 20 kHz to 250 kHz

These are Pb−Free Devices

Notebook Adapter

High Current Battery Chargers

Front Ends for Distributed Power Systems

High Power Solid State Lighting

See detailed ordering and shipping information in the package

dimensions section on page 32 of this data sheet.

DW SUFFIX

CASE 751D

CASE 751B

SO−20 WB

D SUFFIX

SOIC−16

ORDERING INFORMATION

http://onsemi.com

= Assembly Location

= Wafer Lot

= Year

= Work Week

= Pb−Free Package

Publication Order Number:

DIAGRAMS

AWLYYWWG

MARKING

NCP1652G

AWLYWW

NCP1652

NCP1652/D

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