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NCP1607 Datasheet PDF : 23 Pages
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NCP1607
Cost Effective Power Factor
Controller
The NCP1607 is an active power factor controller specifically
designed for use as a pre−converter in ac−dc adapters, electronic
ballasts, and other medium power off line converters (typically up to
250 W). It utilizes Critical Conduction Mode (CRM) to ensure unity
power factor across a wide range of input voltages and power levels.
The NCP1607 minimizes the number of external components. The
integration of comprehensive safety protection features makes it an
excellent choice for designing robust PFC stages. It is available in a
SOIC−8 package.
General Features
• “Unity” Power Factor
• No Need for Input Voltage Sensing
• Latching PWM for Cycle by Cycle On Time Control (Voltage Mode)
• High Precision Voltage Reference (±1.6% over the Temperature
Range)
• Very Low Startup Current Consumption (≤ 40 mA)
• Low Typical Operating Current (2.1 mA)
• Source 500 mA / Sink 800 mA Totem Pole Gate Driver
• Undervoltage Lockout with Hysteresis
• Pin to Pin Compatible with Industry Standards
• This is a Pb−Free Device
• This Device uses Halogen−Free Molding Compound
Safety Features
• Programmable Overvoltage Protection
• Open Feedback Loop Protection
• Accurate and Programmable On Time Control
• Accurate Overcurrent Detector
Typical Applications
• AC−DC Adapters, TVs, Monitors
• Off Line Appliances Requiring Power Factor Correction
• Electronic Light Ballast
http://onsemi.com
MARKING
8
DIAGRAMS
1
SO−8
D SUFFIX
CASE 751
8
1607B
ALYW
G
1
A
= Assembly Location
L
= Wafer Lot
Y
= Year
W
= Work Week
G
= Pb−Free Package
PIN CONNECTION
FB
Control
Ct
CS
(Top View)
VCC
DRV
GND
ZCD
ORDERING INFORMATION
Device
Package
Shipping†
NCP1607BDR2G SOIC−8 2500 / Tape & Reel
(Pb−Free)
†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.
AC Line
EMI
Filter
LBOOST
RZCD
+
CIN
ROUT1
CCOMP
ROUT2
CT
NCP1607
VCC
1
8
FB
VCC
2
7
Control DRV
3
Ct
6
GND
4
CS
5
ZCD
DBOOST
VOUT
LOAD
(Ballast,
SMPS, etc.)
+
CBULK
RS
Figure 1. Typical Application
© Semiconductor Components Industries, LLC, 2009
1
April, 2009 − Rev. 1
Publication Order Number:
NCP1607/D
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