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参数资料
| 型号： | F4804A-SRG |
| 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： | 9/41页 |
| 文件大小： | 1387K |
| 代理商： | F4804A-SRG |
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MCD10059 Rev. 1.0
Page 17 of 41
www.power-one.com
F & FC Series DC-DC Converter Input Filters
FC Series, 0-100V, 5/10/20 Amps, TH Mount
DC CURRENT RATINGS:
FC filters are rated for 5.0, 10.0, and 20.0 amperes DC at up to +60 °C. ambient temperature with 400 LFM of forced air
across the module surface, or with the case temperature otherwise held to a maximum of +100 °C. With no forced air and no
additional cooling, the same modules are rated for 3.5, 6.5, and 13 amperes maximum.
Safety Considerations
ISOLATION:
The FC Series EMI filters have 1500 Volt DC isolation from input or output to ground, but no isolation from input to output.
The output voltage is the input voltage.
FUSING:
These filters have no external fuse. An external fuse must always be employed. In general, a 250 volt rated fuse must be
used to meet international safety requirements. The fuse value should be selected to be greater than the maximum input
current of the filter, which occurs at the minimum input voltage of the modules being powered through the filter. Both input
traces and the chassis ground trace (if used) must be capable of conducting a current of 1.5 times the value of the fuse
without opening. If one of the input lines is connected to chassis ground, then the fuse must be in the other input line.
CASE GROUNDING:
The FC Series filters have a non-metallic case. It cannot be grounded. Each filter has a ground pin which must be connected,
with as low an impedance as possible, to chassis ground in order for the filter to function properly.
Input Shutdown Pin
Many DC-DC converter modules have an input “shutdown”, or “control” or “ON/OFF” pin. In most cases, the reference or
return for this pin is the negative input pin of the module. When using such a system with an EMI filter module, the shutdown
return must be made directly to the pin of the module, which is the output of the filter, and not at the input of the filter. This
requires either an optical coupler or a relay, or other fully isolated device to control the module. There must not be any path
for DC current to bypass the module, or its filtering characteristics will be severely compromised.
In order to operate without the internal common mode inductors magnetically saturating, the positive leg and negative leg
currents in the filter must exactly equal. Even a small imbalance, as small as 10 ma, can create saturation of the inductors.
When this happens, they no longer function as filter elements.
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| F4804A-SR | DATA LINE FILTER MODULE |
| F4804A-S | DATA LINE FILTER MODULE |
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| F4810-G | DATA LINE FILTER MODULE |
| F4810-RG | DATA LINE FILTER MODULE |
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