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參數(shù)資料
| 型號： | 5IMX4-12-9Z |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT 4.1 W DC-DC REG PWR SUPPLY MODULE |
| 封裝： | DIP-24 |
| 文件頁數(shù)： | 9/14頁 |
| 文件大小： | 251K |
| 代理商： | 5IMX4-12-9Z |
Board Mountable
DC-DC Converters
IMX 4 Series
Edition 6/4.2000
4/14
Electrical Input Data
General conditions:
TA = 25
°C, unless T
C is specified.
Table 2: Input Data
Input
5 IMX 4
20 IMX 4
40 IMX 4
70 IMX 4
Characteristics
Conditions
min typ max min typ max min typ max min typ max
Unit
Ui
Input voltage range
TC min...TC max
4.7
16.8 8.4
36 16.8 4
75
40
121
V DC
Ui nom
Nominal input voltage
Io = 0...Io nom
520
40
70
Ui sur
Repetitive surge voltage
abs. max input (3 s)
20
40
100
150
tstart up
Converter start-up time 1
Worst case condition at
0.25 0.5
s
Ui min and full load
trise
Rise time 1
Ui nom
resistive load
5
ms
Io nom
capacitive load
12
Ii o
No load input current
Io = 0, Ui min...Ui max
50 100
15
20
5
10
5
10
mA
C i
Input capacitance
for surge calculation
10
0.54
0.3
0.15
F
Iinr p
Inrush peak current
Ui = Ui nom 3
1.4
3.7
4.2
5.6
A
fs
Switching frequency
Ui min...Ui max, Io = 0...Io nom approx. 400
approx. 400
kHz
Ii rr
Reflected ripple current
Io = 0...Io nom
60
100
60
30
mApp
ui RFI
Input RFI level
EN 55022 2
BB 1
B 1
A
conducted and radiated
1 Measured with a resistive or max. admissible capacitive load. (See fig.: Converter start-up and rise time)
2 External filter required. (See: Filter recommendations for compliance with EN 55022)
3 Source impedance according to prETS 300132-2, version 4.3.
4 Operation at lower input voltage possible: Po approx. 80% of Po nom at Ui min = 14.4 V
Uo nom
Uo
tstart up
trise
t
04008
Fig. 7
Converter start-up and rise time
1 A/Div.
5
s/Div.
04034
0
1
2
3
4
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 Ui nom, Po nom versus time
(40 IMX 4) 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 5 IMX 4 a fast 2 A (F2A) fuse is recommended
– For 20 IMX 4 a fast 1 A (F1A) fuse is recommended
– For 40 IMX 4 a fast 0.63 A (F0.63A) fuse is recommended
– For 70 IMX 4 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–
Ci
04035
Table 3: Input filter components (EN 55022)
Ref.
20 IMX 4
40 IMX 4
70 IMX 4
C1
4.7
F
, 63 V,
2.2
F
, 100 V,
2.2
F
, 150 V,
85
°C85°C85°C
Type
ceramic or film
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