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参数资料
| 型号： | F4804A-R |
| 厂商： | POWER-ONE INC |
| 元件分类： | 数据传输滤波器 |
| 英文描述： | DATA LINE FILTER MODULE |
| 文件页数： | 22/41页 |
| 文件大小： | 1387K |
| 代理商： | F4804A-R |
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MCD10059 Rev. 1.0
Page 29 of 41
www.power-one.com
F & FC Series DC-DC Converter Input Filters
FC Series, 0-100V, 5/10/20 Amps, TH Mount
Printed Circuit Board Design
For optimum filtering, all shunt capacitors which are used in either the input or output circuits must be wired with "Four-
Terminal" techniques. Traces enter the node of the capacitor on one side of its pad (surface mount or discrete) and depart
from the other side. Capacitors are never "Tee'd" from other traces. The traces feeding the capacitors should be close
together and parallel. Never leave large loops in input (or output) and return traces in the printed circuit board designs for
power converters. Large loops form large antennas; large antennas create the most radiated EMI.
It is recommended that one layer of the board which carries the filter and converter(s) be dedicated as a ground plane.
Preferably, this is the layer directly under the modules. It should extend out beyond the edges of the modules. The ground
plane should be connected to earth ground, or to +Vin.
Manufacturing Issues
PROCESSING OF COMPLETED POWER MODULES
The incorporation of completed power modules into assemblies, or installation into mother boards, can be handled by the
conventional industry methods. The stanchions which are fabricated of PPS plastic, along with all the other component parts
used, will withstand normal preheat temperatures associated with standard soldering operations. The most common method
for mass soldering of the power supply to a mother board is “wave soldering” and should be profiled approximately as follows:
1. The solder pot should be set at 500 °F and the conveyor should have a speed preset to insure that each section of the
bottom side of the assembly dwells in the molten solder wave for 3 to 4 seconds. It is imperative that a correct temperature
profile be used, not only to reduce solder defects but to eliminate any chance of thermal shock on the components.
2. The motherboard should attain a top side preheat temperature of 220° to 240° F before it enters the solder wave. The
temperature change between the preheat and the soldering zones should be minimized.
3. The cooling rate after the solder wave should be similar in drop in temperature to the preheat rise.
NOTES ON PROCESSING OF COMPLETED POWER MODULES
Power-One through-hole pins are tin/lead plated and are easily soldered if all process parameters are met. However, in
fluxing, the flux density, the activity and the ratio of flux foam to wave height must be closely monitored and controlled to
maintain minimum solder defects.
In controlling the solder profile, preheating of the assembly in two or three stages minimizes the thermal shock damage
and increases the end life of the unit.
If the power converters are to be hand soldered into the motherboard, a temperature controlled iron of 700° F (MAX) is
recommended.
While Power-One power converters generally spend about 3 seconds in the wave, they are designed to withstand
soldering temperatures of 500° F for up to 10 seconds.
If non-conventional methods are to be used to solder Power-One power supplies to the motherboard, contact Power-One
Technical Support before proceeding.
相关PDF资料 |
PDF描述 |
|---|---|
| F4804A-SG | DATA LINE FILTER MODULE |
| F4804A-SRG | DATA LINE FILTER MODULE |
| F4804A-SR | DATA LINE FILTER MODULE |
| F4804A-S | DATA LINE FILTER MODULE |
| F4804A | DATA LINE FILTER MODULE |
相关代理商/技术参数 |
参数描述 |
|---|---|
| F4804A-RG | 制造商:Power-One 功能描述:Electromechanical Filter 50Ohm 5uH 4ADC 制造商:Power-One 功能描述:EM FLTR 50OHM - Tape and Reel 制造商:Power-One 功能描述:F4804A Series Single Output 80 V Surface Mount DC/DC Converter Power Supply |
| F4804A-R-G | 功能描述:DC/DC转换器 RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压（标称）: 输出端数量:1 输出电压（通道 1）:3.3 V 输出电流（通道 1）:600 mA 输出电压（通道 2）: 输出电流（通道 2）: 安装风格:SMD/SMT 封装 / 箱体尺寸: |
| F4804-R | 制造商:Power-One 功能描述:EM FLTR 50OHM - Tape and Reel |
| F48-050 | 功能描述:电源变压器 2.5VA 48V CT @ 0.05A Split Pack RoHS:否 制造商:Triad Magnetics 功率额定值:12 VA 初级电压额定值:115 V / 230 V 次级电压额定值:12 V / 24 V 安装风格:SMD/SMT 一次绕组:Dual Primary Winding 二次绕组:Dual Secondary Winding 长度:2.5 in 宽度:2 in 高度:1.062 in |
| F48-050-C2 | 制造商:Triad Magnetics 功能描述:Transformer, class 2/3, 6-pin, 2.5VA, 115V x 48VCT at 0.05A, 24V at 0.1A |
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