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VIPER22-LED-EV 参数 Datasheet PDF下载

VIPER22-LED-EV图片预览
型号: VIPER22-LED-EV
PDF下载: 下载PDF文件 查看货源
内容描述: 低功率离线式开关电源初级切换器 [Low power OFF-line SMPS primary switcher]
分类和应用: 开关
文件页数/大小: 21 页 / 392 K
品牌: STMICROELECTRONICS [ ST ]
 浏览型号VIPER22-LED-EV的Datasheet PDF文件第10页浏览型号VIPER22-LED-EV的Datasheet PDF文件第11页浏览型号VIPER22-LED-EV的Datasheet PDF文件第12页浏览型号VIPER22-LED-EV的Datasheet PDF文件第13页浏览型号VIPER22-LED-EV的Datasheet PDF文件第15页浏览型号VIPER22-LED-EV的Datasheet PDF文件第16页浏览型号VIPER22-LED-EV的Datasheet PDF文件第17页浏览型号VIPER22-LED-EV的Datasheet PDF文件第18页  
Operation pictures  
VIPer22A-E, VIPer22ADIP-E, VIPer22AS-E  
Figure 12. Peak drain current vs feedback current  
100V  
4mH  
I
D
IDpeak  
VDD  
DRAIN  
1/FOSC  
FB  
CONTROL  
18V  
100V  
t
SOURCE  
I
47nF  
FB  
VIPer22A  
V
FB  
I
R  
FB  
FBsd  
The drain current limitation is  
obtained for VFB = 0 V, and a  
negative current is drawn from  
the FB pin. See the Application  
section for further details.  
I
FB  
I
Dpeak  
ΔI  
Dpeak  
IDlim  
G
= –------------------------  
ID  
ΔI  
FB  
I
FB  
0
IFBsd  
Figure 13. Thermal shutdown  
14/21  
Doc ID 12050 Rev 2  
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