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TOP243Y 参数 Datasheet PDF下载

TOP243Y图片预览
型号: TOP243Y
PDF下载: 下载PDF文件 查看货源
内容描述: 家庭扩展的电源,设计灵活,集成离线式开关 [Family Extended Power, Design Flexible,Integrated Off-line Switcher]
分类和应用: 开关局域网
文件页数/大小: 48 页 / 768 K
品牌: POWERINT [ Power Integrations ]
 浏览型号TOP243Y的Datasheet PDF文件第12页浏览型号TOP243Y的Datasheet PDF文件第13页浏览型号TOP243Y的Datasheet PDF文件第14页浏览型号TOP243Y的Datasheet PDF文件第15页浏览型号TOP243Y的Datasheet PDF文件第17页浏览型号TOP243Y的Datasheet PDF文件第18页浏览型号TOP243Y的Datasheet PDF文件第19页浏览型号TOP243Y的Datasheet PDF文件第20页  
TOP242-249  
Typical Uses of LINE-SENSE (L) and EXTERNAL CURRENT LIMIT (X) Pins  
+
+
VUV = IUV x RLS  
VOV = IOV x RLS  
For RLS = 2 MΩ  
VUV = 100 VDC  
RLS  
2MΩ  
C L  
X
S
F
D
VOV = 450 VDC  
DC  
DC  
Input  
Voltage  
Input  
Voltage  
DCMAX@100 VDC = 78%  
DCMAX@375 VDC = 38%  
D
S
L
D
S
L
C
S
D
CONTROL  
CONTROL  
C
C
X
F
-
-
PI-2618-040501  
PI-2617-050100  
Figure 17. Line-Sensing for Under-Voltage, Overvoltage and  
Line Feed Forward.  
Figure 16. Three Terminal Operation (LINE-SENSE and  
EXTERNAL CURRENT LIMIT Features Disabled.  
FREQUENCY Pin can be tied to SOURCE or  
CONTROL Pin).  
+
+
VUV = RLS x IUV  
VOV = IOV x RLS  
2 MΩ  
2 MΩ  
For Value Shown  
VUV = 100 VDC  
For Values Shown  
VOV = 450 VDC  
RLS  
RLS  
DC  
Input  
Voltage  
DC  
Input  
Voltage  
22 kΩ  
30 kΩ  
1N4148  
D
L
D
S
M
CONTROL  
CONTROL  
C
C
6.2 V  
S
-
-
PI-2620-040501  
PI-2510-040501  
Figure 19. Line-Sensing for Overvoltage Only (Under-Voltage  
Disabled). Maximum Duty Cycle will be reduced at  
Low Line.  
Figure 18. Line-Sensing for Under-Voltage Only (Overvoltage  
Disabled).  
+
+
I
LIMIT = 100% @ 100 VDC  
For RIL = 12 kΩ  
ILIMIT  
=
63% @ 300 VDC  
ILIMIT = 69%  
RLS  
2.5 MΩ  
For RIL = 25 kΩ  
ILIMIT = 43%  
See fig. 55 for other  
DC  
Input  
Voltage  
DC  
D
S
D
resistor values (RIL)  
Input  
CONTROL  
X
CONTROL  
Voltage  
C
C
S
X
RIL  
RIL  
6 kΩ  
-
-
PI-2624-040501  
PI-2623-040501  
Figure 21. Current Limit Reduction with Line Voltage.  
Figure 20. Externally Set Current Limit.  
E
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