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NCP1654_11 Datasheet, PDF (1/23 Pages) ON Semiconductor – Power Factor Controller for Compact and Robust Continuous Conduction Mode Pre-Converters | |||
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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 stepâup preâconverters. 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
⢠IEC61000â3â2 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 cycleâbyâcycle DutyâCycle Control
⢠Internally Trimmed Internal Reference
⢠Undervoltage Lockout with Hysteresis
⢠SoftâStart for Smoothly Startup Operation
⢠Shutdown Function
⢠Pin to Pin Compatible with Industry Standard
⢠This is a PbâFree Device
Safety Features
⢠Inrush Currents Detection
⢠Overvoltage Protection
⢠Undervoltage Detection for Open Loop Detection or Shutdown
⢠BrownâOut Detection
⢠SoftâStart
⢠Accurate Overcurrent Limitation
⢠Overpower Limitation
Typical Applications
⢠Flat TVs, PC Desktops
⢠AC Adapters
⢠White Goods, other Offâline SMPS
http://onsemi.com
8
1
SOâ8
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
= PbâFree Package
PIN CONNECTIONS
Ground 1
8 Driver
VM 2
CS 3
7 VCC
6 Feedback
BrownâOut 4
5 Vcontrol
(Top View)
ORDERING INFORMATION
Device
Package
NCP1654BD65R2G SOâ8
(PbâFree)
Shippingâ
2500 / Tape &
Reel
NCP1654BD133R2G SOâ8
2500 / Tape &
(PbâFree)
Reel
NCP1654BD200R2G SOâ8
2500 / Tape &
(PbâFree)
Reel
â 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, 2011
1
July, 2011 â Rev. 4
Publication Order Number:
NCP1654/D
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