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  ON Semiconductor Electronic Components Datasheet  

MC33260 Datasheet

GreenLine Compact Power Factor Controller

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MC33260
GreenLinet Compact
Power Factor Controller:
Innovative Circuit for
Cost Effective Solutions
The MC33260 is a controller for Power Factor Correction
preconverters meeting international standard requirements in
electronic ballast and off--line power conversion applications.
Designed to drive a free frequency discontinuous mode, it can also be
synchronized and in any case, it features very effective protections that
ensure a safe and reliable operation.
This circuit is also optimized to offer extremely compact and cost
effective PFC solutions. While it requires a minimum number of
external components, the MC33260 can control the follower boost
operation that is an innovative mode allowing a drastic size reduction
of both the inductor and the power switch. Ultimately, the solution
system cost is significantly lowered.
Also able to function in a traditional way (constant output voltage
regulation level), any intermediary solutions can be easily
implemented. This flexibility makes it ideal to optimally cope with a
wide range of applications.
General Features
Standard Constant Output Voltage or “Follower Boost” Mode
Switch Mode Operation: Voltage Mode
Latching PWM for Cycle--by--Cycle On--Time Control
Constant On--Time Operation That Saves the Use of an Extra Multiplier
Totem Pole Output Gate Drive
Undervoltage Lockout with Hysteresis
Low Startup and Operating Current
Improved Regulation Block Dynamic Behavior
Synchronization Capability
Internally Trimmed Reference Current Source
These are Pb--Free Devices
Safety Features
Overvoltage Protection: Output Overvoltage Detection
Undervoltage Protection: Protection Against Open Loop
Effective Zero Current Detection
Accurate and Adjustable Maximum On--Time Limitation
Overcurrent Protection
ESD Protection on Each Pin
D1...D4
R cs
Filtering
Capacitor
Vcontrol
ROCP
L1 D1
1
2
3
4
CT
8 VCC
7
6
5 Sync
M1
+ C1
LOAD
(SMPS, Lamp
Ballast,...)
Ro
DIP--8 CONFIGURATION SHOWN
Figure 1. Typical Application
http://onsemi.com
MARKING
DIAGRAMS
8
1
PDIP--8
P SUFFIX
CASE 626
MC33260P
AWL
YYWWG
8
1
SO--8
D SUFFIX
CASE 751
8
33260
ALYW
G
1
A
WL, L
YY, Y
WW, W
G or G
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb--Free Package
PIN CONNECTIONS
Feedback Input 1
8 VCC
Vcontrol
Oscillator
Capacitor (CT)
Current Sense
Input
27
36
45
MC33260P
Gate Drive
Gnd
Synchronization
Input
Oscillator
Capacitor (CT)
Current Sense
Input
Synchronization
Input
Gnd
18
27
36
45
MC33260D
Vcontrol
Feedback Input
VCC
Gate Drive
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 20 of this data sheet.
Semiconductor Components Industries, LLC, 2010
November, 2010 -- Rev. 11
1
Publication Order Number:
MC33260/D


  ON Semiconductor Electronic Components Datasheet  

MC33260 Datasheet

GreenLine Compact Power Factor Controller

No Preview Available !

MC33260
IOSC -- ch =
2 x IO x IO
Iref
CT
11 V
10
Output_Ctrl
Current Mirror
Io
Io Io
Iref
Current
Mirror
Io
15 pF
Vref 1.5 V
Io Vreg 300 k
97%Iref Iref
Current
Sense
REGULATOR
Enable
Vref
Iref
--
+
Ics (205 mA)
11 V/8.5 V
--60 mV
10
+
--
LEB
11 V
Output_Ctrl
IovpH/IovpL
11 V
+
-- OVP
r
r Iuvp
+ UVP
--
r
11 V
Synchro
Arrangement
ThStdwn
+
--
PWM Comparator
S
RQ
R
PWM
Latch
RQ
Output_Ctrl
MC33260
Vo
FB
Vcontrol
Synchro
VCC
Drive
Gnd
Figure 2. Block Diagram
http://onsemi.com
2


Part Number MC33260
Description GreenLine Compact Power Factor Controller
Maker ON Semiconductor
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MC33260 Datasheet PDF






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