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MC33260_05

更新时间： 2024-09-23 12:10:19
品牌 Logo 应用领域
安森美 - ONSEMI 控制器
页数 文件大小 规格书
22页 221K
描述
GreenLine TM Compact Power Factor Controller: Innovative Circuit for Cost Effective Solutions

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MC33260_05 数据手册

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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.  
http://onsemi.com  
MARKING  
DIAGRAMS  
8
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.  
MC33260P  
AWL  
YYWWG  
PDIP−8  
P SUFFIX  
CASE 626  
8
1
1
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.  
8
SO−8  
D SUFFIX  
CASE 751  
33260  
ALYW  
G
8
General Features  
1
1
• 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  
A
WL, L  
YY, Y  
= Assembly Location  
= Wafer Lot  
= Year  
WW, W = Work Week  
G or G  
= Pb−Free Package  
• Undervoltage Lockout with Hysteresis  
• Low Startup and Operating Current  
PIN CONNECTIONS  
• Improved Regulation Block Dynamic Behavior  
• Synchronization Capability  
Feedback Input  
1
2
3
4
8
7
6
5
V
CC  
• Internally Trimmed Reference Current Source  
• Pb−Free Packages are Available  
V
Gate Drive  
Gnd  
control  
Oscillator  
Safety Features  
Capacitor (C )  
Current Sense  
Input  
T
• Overvoltage Protection: Output Overvoltage Detection  
• Undervoltage Protection: Protection Against Open Loop  
• Effective Zero Current Detection  
Synchronization  
Input  
MC33260P  
• Accurate and Adjustable Maximum On−Time Limitation  
• Overcurrent Protection  
Oscillator  
1
8
V
control  
Capacitor (C )  
Current Sense  
Input  
T
Feedback Input  
• ESD Protection on Each Pin  
2
3
4
7
6
5
Synchronization  
V
CC  
Input  
Filtering  
Capacitor  
D1...D4  
Gnd  
Gate Drive  
L1  
D1  
MC33260D  
C1  
+
V
LOAD  
(SMPS, Lamp  
Ballast,...)  
CC  
1
2
3
4
8
7
6
5
M1  
V
control  
R
o
ORDERING INFORMATION  
See detailed ordering and shipping information in the package  
Sync  
CT  
R
OCP  
R
cs  
dimensions section on page 20 of this data sheet.  
DIP−8 CONFIGURATION SHOWN  
Figure 1. Typical Application  
©
Semiconductor Components Industries, LLC, 2005  
1
Publication Order Number:  
September, 2005 − Rev. 9  
MC33260/D  
1234567...22

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