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?Semiconductor Components Industries, LLC, 2009
July, 2009  Rev. 3
1
Publication Order Number:
MC33232/D
MC33232
Power Factor Controller
The MC33232 is the monolithic Integrated Circuit using the
SMARTMOS
?/DIV>
 process as the new technology. And is active power
factor controller specially design for use as offline power converter
application. This integrated circuit features an internal startup timer
for standalone application, a one quadrant multiplier for near unity
power factor, zero current detector to ensure critical condition
operation, transconductance error amplifier, quickstart circuit for
enhanced startup, trimmed internal bandgap reference, current sensing
comparator, a totem pole output ideally suited for drive a power
MOSFET, and a one shotrigger circuit to eliminate a problem at the
light loading.
Also included are protective features consisting of an overvoltage
comparator to eliminate runaway output voltage due to removal, and a
protect circuit to eliminate thermal runaway. This device is available
in dualinline and surface mount plastic package.
Features
" One Shottrigger Circuit to Eliminate a Problem at the Light Loading
" Overvoltage Comparator Eliminates Runaway Output Voltage
" Quickstart Circuit for Enhanced Startup
" Internal Startup Timer
" One Quadrant Multiplier
" Zero Current Detector
" Trimmed 2% Internal Bandgap Reference
" Totem Pole Output with High State Clamp
" Undervoltage Lockout with 6.0 V of Hysteresis
" Low Startup and Operating Current
" These are PbFree Devices
MARKING
DIAGRAMS
A
=  Assembly Location
WL or L
=  Wafer Lot
Y
=  Year
WW or W   =  Work Week
G or G
= PbFree Package
See detailed ordering and shipping information in the package
dimensions section on page 2 of this data sheet.
ORDERING INFORMATION
http://onsemi.com
SILICON MONOLITHIC
INTEGRATED CIRCUIT
1
8
5
3
4
Voltage Feedback
Input
Multiplier Input
V
CC
7
6
2
Drive Output
Compensation
Current Sense
Input
Zero Current
Detect Input
GND
PDIP8
P SUFFIX
CASE 626
SOIC8
D SUFFIX
CASE 751
MC33232P
 AWL
YYWWG
33232
ALYW
G
1
8
PIN ASSIGNMENT
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