24IMS6-12-9 查看數據表（PDF） - Power-One Inc.

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24IMS6-12-9

6 Watt SMD and through hole DC/DC converters

Power-One Inc. 

Industrial Environment

DC/DC Converters < 40W

IMS6 Series

Uo

Uo nom

04008

Reverse Polarity Protection at Input

t rise

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:

t

tstart up

Fig. 7

Converter start-up and rise time

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.

1 A/Div.

4

04034

– 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.

04035

Vi+

Ci

3

Vi–

Fig. 9

2

Input filter arrangement

1

Table 3: Input filter components (EN 55022)

Ref.

24 IMS 6

48 IMS 6

0

C1

2.2 , F, 100 V,

2.2 F, 150 V,

Fig. 8

5 s/Div.

Type

Typical inrush current at Ui nom, Po nom versus time

(48 IMS6 ) measured according to prETS 300132-2,

version 4.3.

ceramic or film

Edition 1 06.00

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