24IMS7-03-9 查看數據表（PDF） - Bel Fuse Inc.
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24IMS7-03-9 Datasheet PDF : 14 Pages
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IMX7, IMS7 Series Data Sheet
7-Watt DC-DC Converters
Electrical Input Data
General conditions:
– TA = 25 °C, unless TC is specified.
– Connector pin i connected with Vi–.
– Trim or R input not connected.
Table 2a: Input data of IMX7
Input
20IMX7
40IMX7
70IMX7
110IMX7 Unit
Characteristics
Conditions
min typ max min typ max min typ max min typ max
Vi
Input voltage range1
Vi nom Nominal input voltage
TC min – TC max
Io = 0 – Io nom
8.4
36 16.8 6
75 40
121 60
1507 V
20
40
70
110
Vi sur Repetitive surge voltage
abs. max input (3 s)
50 5
100
150
tstart up Converter 2 switch on Worst case condition at
start-up time inh. release Vi min and full load
0.25 0.5
0.1
0.25 0.5
0.1
0.25 0.5
0.1
0.25 0.5 s
0.1
t rise
Rise time 2
Vi nom
resistive load
5
Io nom capacitive load
12
5
5
5
ms
12
12
12
Ii o
No load input current
Io = 0, Vi min – Vi max
15 30
8 15
8 15
8 15 mA
Ci
Input capacitance
(for surge calculation)
4.7
0.5
0.2
0.2
µF
Vinh Inhibit voltage
converter operating
–10
+0.8 –10
+0.8 –10
+0.8 –10
+0.8 V
converter inhibited
2.4
Vi max 2.4
Vi max 2.4
Vi max 2.4
Vi max
or open
or open
or open
or open
Iinh
Inhibit current
converter operating
– 0.5
– 0.5
– 0.5
– 0.5
mA
converter inhibited
1
1
1
1
Ii inh Input current when the
converter is inhibited
Vi min – Vi max
3
3
3
3
Iinr p Inrush peak current
Vi = Vi nom 4
3.8
3.7
4.2
5.6
A
fs
Switching frequency
Vi min – Vi max, Io = 0 – Io nom approx. 400
approx. 400
approx. 400 approx. 300 kHz
I i rr
Vi RFI
Reflected ripple current
Input RFI level conducted
Io = 0 – Io nom
EN 55022 3
50
A
30
A
20
A
10 mApp
A
1 Vi min will not be as stated, if Vo is increased above Vo nom by use of the R or Trim input. If the output voltage is set to a higher value, Vi min
will be proportionally increased.
2 Measured with a resistive and the max. admissible capacitive load.
3 Measured with a lead length of 0.1 m, leads twisted. Double-output models with both outputs in parallel. 70/110 IMX7 models need an
external capacitor at the input, e.g., 1 µF film or ceramic.
4 Source impedance according to ETS 300132-2, version 4.3, at Vi nom.
5 The DC-DC converter shuts down automatically at approx. 38 V.
6 Operation at lower input voltage possible: Po approx. 80% of Po nom at Vi min = 14.4 V.
7 Up to 154 V for 2 s
Vo
Vo nom
trise
04008a
t
tstart up
Fig. 3
Converter start-up and rise time
BCD20007-G Rev AF, 31-Jul-2015
MELCHER
The Power Partners.
Page 4 of 14
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