參數資料
型號: 48IMS25-15-9
元件分類: 電源模塊
英文描述: 1-OUTPUT 24 W DC-DC REG PWR SUPPLY MODULE
文件頁數: 5/11頁
文件大?。?/td> 225K
代理商: 48IMS25-15-9
Board Mountable
DC-DC Converters
IMS 25 Series
Edition 2/4.2000
3/11
Electrical Input Data
General conditions:
– TA = 25
°C, unless T
C is specified.
– Shut down pin left open circuit (not connected).
– Trim input not connected.
Table 2: Input Data
Input
24 IMS
48 IMS
Characteristics
Conditions
min
typ
max
min
typ
max
Unit
Ui
Input voltage range 1
TC min...TC max
14 5
36
32
75
V DC
Ui nom
Nominal input voltage
Io = 0...Io nom
24
48
Ui sur
Repetitive input surge
max 3 s
50
100
voltage
tstart up
Converter
Switch on
Ui min, Io = Io nom 2
0.25
0.5
0.25
0.5
s
start-up time
SD high
0.1
trise
Rise time
5
ms
Ii NL
No load input current
Io = 0, Ui min...Ui max
30
40
30
40
mA
SD high
C i
Input capacitance
for surge calculation
2.0
F
USD
Shut down voltage
Unit disabled
–10
0.7
–10
0.7
V DC
Unit operating
2.0
5.5
2.0
5.5
ISD
Input current of SD input
1
2
1
2
mA
Iinr p
Inrush peak current 4
Ui = Ui nom
43.8
A
fs
Switching frequency
Ui min, Io nom
approx. 250
kHz
Ii rr
Reflected
Io = 0...Io nom
30
60
mApp
ripple current
ui RFI
Input RFI level conducted
EN 55022 3
BB
1 Ui min will not be as stated if Uo is increased above Uo nom by use of the Trim input. If the output voltage is set to a higher value,
Ui min will be proportionally increased.
2 Measured with a resistive and the max. admissible capacitive load.
3 Measured with a lead lenght of 0.1 m, leads twisted.
4 Source impedance according to prETS 300132-2, version 4.3.
5 Linear derating to 85% of Io nom for Ui <16.8 V.
Inrush Current
The inrush current has been kept as low as possible by
choosing a very small input capacitance.
A series resistor may be installed in the input line to further
limit this current.
Fig. 2
Typical inrush current at Ui nom, Po nom versus time
(48 IMS 25-05-9G). Source impedance according to
prETS 300132-2, version 4.3 at Ui nom.
–10
1
23
4
5
6
7
8
t [ms]
–2
0
0.2
0.4
0.6
0.8
1
1.2
1.4
I [A]
04058
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