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UCC28180 参数 Datasheet PDF下载

UCC28180图片预览
型号: UCC28180
PDF下载: 下载PDF文件 查看货源
内容描述: 可编程频率,连续导通模式( CCM )升压功率因数校正(PFC )控制器 [Programmable Frequency, Continuous Conduction Mode (CCM), Boost Power Factor Correction (PFC) Controller]
分类和应用: 功率因数校正控制器
文件页数/大小: 48 页 / 1765 K
品牌: TI [ TEXAS INSTRUMENTS ]
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UCC28180  
www.ti.com  
SLUSBQ5A NOVEMBER 2013REVISED NOVEMBER 2013  
A standard value 2700-pF capacitor for CICOMP results in a current averaging pole frequency of 4.314 kHz.  
mi ´M1  
K1 ´ 2´ p ´ 2700pF  
g
f
=
= 4.314kHz  
IAVG  
(102)  
The transfer function of the current loop can be plotted:  
K12.5RSENSEVOUT  
1
GCL(f) =  
´
s(f)2K1CICOMP  
KFQM1M2LBST  
s(f) +  
gmi ´M1  
(103)  
(104)  
GCLdB(f) = 20log G (f)  
(
CL  
)
100  
80  
±80  
Gain  
±90  
Phase  
60  
±100  
±110  
±120  
±130  
±140  
±150  
±160  
±170  
±180  
40  
20  
0
±20  
±40  
±60  
±80  
±100  
10  
100  
1k  
10k  
100k  
1M  
Frequency (Hz)  
C005  
Figure 33. Bode Plot of the Current Averaging Circuit  
Copyright © 2013, Texas Instruments Incorporated  
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35  
Product Folder Links :UCC28180  
 
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