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| 型號： | IMS6 |
| 英文描述： | 6 Watt SMD and through hole DC/DC converters |
| 中文描述： | 6瓦特SMD和通孔的DC / DC轉換器 |
| 文件頁數(shù)： | 5/13頁 |
| 文件大?。?/td> | 1671K |
| 代理商： | IMS6 |
Industrial Environment DC/DC Converters < 40W IMS6 Series
Edition 1 06.00
U
o nom
U
o
t
start up
t
rise
t
04008
Fig. 7
Converter start-up and rise time
1 A/Div.
4
5
s/Div.
04034
0
1
2
3
Inrush Current
The inrush current has been kept as low as possible by
choosing a very small input capacitance. A series resistor
may be inserted in the input line to limit this current further.
Fig. 8
Typical inrush current at U
i nom
, P
o nom
versus time
(48 IMS6 ) measured according to prETS 300132-2,
version 4.3.
Reverse Polarity Protection at Input
The suppressor diode on the input also provides for reverse
polarity protection by conducting current in the reverse di-
rection, thus protecting the unit. An external fuse is required
to limit this current:
– For 24 IMS 6 a fast 0.63 A (F0.63A) fuse is recommended
– For 48 IMS 6 a fast 0.35 A (F035A) fuse is recommended
Filter recommendations for compliance with EN 55022
Electromagnetic emission requirements according to table
Input data
can be achieved by adding an external capacitor
as close as possible to the input terminals.
Fig. 9
Input filter arrangement
Vi+
Vi–
C
i
04035
Table 3: Input filter components (EN 55022)
Ref.
24 IMS 6
48 IMS 6
C
1
,
2.2
F
,
100 V,
2.2
F
,
150 V,
Type
ceramic or film
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