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NCP1654BD200R2G

Power Factor Controller for Compact and Robust, Continuous Conduction Mode Pre-Converters

ON Semiconductor 

NCP1654

Power Factor Controller for

Compact and Robust,

Continuous Conduction

Mode Pre-Converters

The NCP1654 is a controller for Continuous Conduction Mode

(CCM) Power Factor Correction step−up pre−converters. It controls

the power switch conduction time (PWM) in a fixed frequency mode

and in dependence on the instantaneous coil current.

Housed in a SO8 package, the circuit minimizes the number of

external components and drastically simplifies the PFC

implementation. It also integrates high safety protection features that

make the NCP1654 a driver for robust and compact PFC stages like

an effective input power runaway clamping circuitry.

Features

• IEC61000−3−2 Compliant

• Average Current Continuous Conduction Mode

• Fast Transient Response

• Very Few External Components

• Very Low Startup Currents (<75 mA)

• Very Low Shutdown Currents (< 400 mA)

• Low Operating Consumption

• ±1.5 A Totem Pole Gate Drive

• Accurate Fully Integrated 65/133/200 kHz Oscillator

• Latching PWM for cycle−by−cycle Duty−Cycle Control

• Internally Trimmed Internal Reference

• Undervoltage Lockout with Hysteresis

• Soft−Start for Smoothly Startup Operation

• Shutdown Function

• Pin to Pin Compatible with Industry Standard

• This is a Pb−Free Device

Safety Features

• Inrush Currents Detection

• Overvoltage Protection

• Undervoltage Detection for Open Loop Detection or Shutdown

• Brown−Out Detection

• Soft−Start

• Accurate Overcurrent Limitation

• Overpower Limitation

Typical Applications

• Flat TVs, PC Desktops

• AC Adapters

• White Goods, other Off−line SMPS

http://onsemi.com

8

1

SO−8

D SUFFIX

CASE 751

MARKING

DIAGRAM

8

54Bxx

ALYW

G

1

xx

= 65, 133 or 200

A

= Assembly Location

L

= Wafer Lot

Y

= Year

W

= Work Week

G

= Pb−Free Package

PIN CONNECTIONS

Ground 1

8 Driver

VM 2

CS 3

7 VCC

6 Feedback

Brown−Out 4

5 Vcontrol

(Top View)

ORDERING INFORMATION

Device

Package

NCP1654BD65R2G SO−8

(Pb−Free)

Shipping†

2500 / Tape &

Reel

NCP1654BD133R2G SO−8

2500 / Tape &

(Pb−Free)

Reel

NCP1654BD200R2G SO−8

2500 / Tape &

(Pb−Free)

Reel

†For information on tape and reel specifications,

including part orientation and tape sizes, please

refer to our Tape and Reel Packaging Specification

Brochure, BRD8011/D.

© Semiconductor Components Industries, LLC, 2009

1

June, 2009 − Rev. 3

Publication Order Number:

NCP1654/D

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