NCP1650 datasheet(1/31 Pages) ONSEMI

Part #	NCP1650

Description	Power Factor Controller

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 Semiconductor Components Industries, LLC, 2010

December, 2010 -- Rev. 12

1

Publication Order Number:

NCP1650/D

NCP1650

Power Factor Controller

The NCP1650 is an active, power factor correction controller that

can operate over a wide range of input voltages, and output power

levels. It is designed to operate on 50/60 Hz power systems. This

controller offers several different protection methods to assure safe,

reliable operation under any conditions.

The PWM is a fixed frequency, average current mode controller

with a wide complement of features. These features allow for both

flexibility as well as precision in it’s application to a circuit. Critical

components of the internal circuitry are designed for high accuracy,

which allows for precise power and current limiting, therefore

minimizing the amount of overdesign necessary for the power stage

components.

The NCP1650 is designed with a true power limiting circuit that will

maintain excellent power factor even in constant power mode. It also

contains features that allow for fast transient response to changing

load currents and line voltages.

Features

 Fixed Frequency Operation

 Average Current Mode PWM

 Continuous or Discontinuous Mode Operation

 Fast Line/Load Transient Compensation

 True Power Limiting Circuit

 High Accuracy Multipliers

 Undervoltage Lockout

 Overvoltage Limiting Comparator

 Brown Out Protection

 Ramp Compensation Does Not Affect Oscillator Accuracy

 Operation from 25 to 250 kHz

 This is a Pb--Free Device

Typical Applications

 Server Power Converters

 Front End for Distributed Power Systems

Device

Package

Shipping†

ORDERING INFORMATION

1

2

3

4

5

6

7

8

16

12

11

10

9

(Top View

)

AC INPUT

Vin

Vref

AC COMP

AC REF

FB/SD

LOOP COMP

PCOMP

OUTPUT

IS--

Iavg--fltr

Pmax

Iavg

13 RAMP COMP

PIN CONNECTIONS

15

14

GND

CT

†For information on tape and reel specifications,

including part orientation and tape sizes, please

refer to our Tape and Reel Packaging Specifications

Brochure, BRD8011/D.

http://onsemi.com

NCP1650DR2G

SOIC--16

(Pb--Free)

2500/Tape & Reel

A

= Assembly Location

WL

= Wafer Lot

Y

= Year

WW

= Work Week

G

= Pb--Free Package

MARKING DIAGRAM

SO--16

D SUFFIX

CASE 751B

NCP1260G

AWLYWW

1

16

1

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