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L36SA12004NRFA 参数 Datasheet PDF下载

L36SA12004NRFA图片预览
型号: L36SA12004NRFA
PDF下载: 下载PDF文件 查看货源
内容描述: 德尔福系列L36SA , 2 ×1.6 , 50W系列DC / DC电源模块: 18 〜 75V的, 12V / 4A出来 [Delphi Series L36SA, 2 x 1.6, 50W Family DC/DC Power Module: 18~75V in, 12V/4A out]
分类和应用: 电源电路
文件页数/大小: 13 页 / 662 K
品牌: DELTA [ DELTA ELECTRONICS, INC. ]
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DESIGN CONSIDERATIONS  
Input Source Impedance  
The input source must be insulated from the ac  
mains by reinforced or double insulation.  
The impedance of the input source connecting to the  
DC/DC power modules will interact with the modules and  
affect the stability. A low ac-impedance input source is  
recommended. If the source inductance is more than a  
few µH, we advise adding a 10 to 100 µF electrolytic  
capacitor (ESR < 0.7 at 100 kHz) mounted close to the  
input of the module to improve the stability.  
The input terminals of the module are not  
operator accessible.  
If the metal baseplate is grounded, one Vi pin  
and one Vo pin shall also be grounded.  
Layout and EMC Considerations  
A SELV reliability test is conducted on the  
system where the module is used, in  
Delta’s DC/DC power modules are designed to operate  
in a wide variety of systems and applications. For design  
assistance with EMC compliance and related PWB  
layout issues, please contact Delta’s technical support  
team. An external input filter module is available for  
easier EMC compliance design. Application notes to  
assist designers in addressing these issues are pending  
to release.  
combination with the module, to ensure that  
under a single fault, hazardous voltage does not  
appear at the module’s output.  
When installed into a Class II equipment (without  
grounding), spacing consideration should be given  
to the end-use installation, as the spacing between  
the module and mounting surface have not been  
evaluated.  
Safety Considerations  
The power module has extra-low voltage (ELV)  
outputs when all inputs are ELV.  
The power module must be installed in compliance with  
the spacing and separation requirements of the  
end-user’s safety agency standard, i.e., UL60950,  
CAN/CSA-C22.2 No. 60950-00 and EN60950: 2000 and  
IEC60950-1999, if the system in which the power module  
is to be used must meet safety agency requirements.  
This power module is not internally fused. To  
achieve optimum safety and system protection, an  
input line fuse is highly recommended. The safety  
agencies require a normal-blow fuse with 10A  
maximum rating to be installed in the ungrounded  
lead. A lower rated fuse can be used based on the  
maximum inrush transient energy and maximum  
input current.  
Basic insulation based on 75 Vdc input is provided  
between the input and output of the module for the  
purpose of applying insulation requirements when the  
input to this DC-to-DC converter is identified as TNV-2 or  
SELV. An additional evaluation is needed if the source  
is other than TNV-2 or SELV.  
Soldering and Cleaning Considerations  
Post solder cleaning is usually the final board  
assembly process before the board or system  
undergoes electrical testing. Inadequate cleaning  
and/or drying may lower the reliability of a power  
module and severely affect the finished circuit board  
assembly test. Adequate cleaning and/or drying are  
especially important for un-encapsulated and/or  
open frame type power modules. For assistance on  
appropriate soldering and cleaning procedures,  
please contact Delta’s technical support team.  
When the input source is SELV circuit, the power module  
meets SELV (safety extra-low voltage) requirements. If  
the input source is a hazardous voltage which is greater  
than 60 Vdc and less than or equal to 75 Vdc, for the  
module’s output to meet SELV requirements, all of the  
following must be met:  
DS_L36SA12004_02142007  
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