NCP1654_09 Datasheet, PDF (1/23 Pages) ON Semiconductor – Power Factor Controller for Compact and Robust, Continuous Conduction Mode Pre-Converters

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
V_M 2
CS 3
7 V_CC
6 Feedback
Brown−Out 4
5 V_control
(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