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LB05-10B24 参数 Datasheet PDF下载

LB05-10B24图片预览
型号: LB05-10B24
PDF下载: 下载PDF文件 查看货源
内容描述: AC-DC转换 [AC-DC CONVERTER]
分类和应用:
文件页数/大小: 10 页 / 219 K
品牌: MORNSUN [ MORNSUN SCIENCE& TECHNOLOGY LTD. ]
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suggestions for handling dissipated heat are summarized, below:  
(1) Ambient Air Cooling  
For miniature and high power density converters, free air cooling is recommended, mainly due  
to cost and space concerns.  
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Heat dissipates to the ambient air through the converter case or exposed surfaces. Heat  
may also dissipate to ambient air if there is a gap between the converter and the PCB.  
Heat dissipates from the converter case and exposed surfaces to PCB by radiation.  
Heat conducts through terminals (pins) to PCB.  
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In such applications, please pay particular attention to:  
A. Air Flow - Because the heat dissipation is mainly through convection and radiation, the  
converter needs an environment with good air flow. It may be helpful to design heat  
dissipation venting holes throughout the end product, near the converters location. For  
best convection cooling, ensure that air flow is not blocked by large components  
B. Layout of Heat Generating Components - In most applications, the AC/DC converter is  
usually not the only heat generating component.  
It is recommended to keep a good  
distance between each heat generating component to minimize heat dissipating clusters.  
C. PCB Design - The PCB, which the power converter is assembled on, is not only a base to  
mount the converter, but also acts as a heat sink for it, therefore heat dissipation should be  
considered in PCB layout. We recommend extended the area of the main copper loop  
and decrease the component density on the PCB to improve the ambient environment.  
(2) Heat Sinks  
When free air convection is not sufficient enough, we recommend the use of a heat sink for  
further cooling. As the converters are filled with heat conductive silicon or epoxy, the heat  
distribution in converter is even and it radiates from the converter to the air. The efficiency of  
this convection is dependent on the size of the surface area of the converter. The use of heat  
sinks is a practical method to add surface area and improve the convection. There are many  
kinds of heat sinks available in the market. MORNSUN recommends considering the following  
factors in selecting a heat sink: