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参数资料
| 型号： | AM2540-9PD4AHFU |
| 元件分类： | 电源模块 |
| 英文描述： | 2-OUTPUT 50 W DC-DC REG PWR SUPPLY MODULE |
| 封装： | 168.50 X 111.20 MM, 38.70 MM HEIGHT, METAL, CASE M02, MODULE |
| 文件页数： | 2/24页 |
| 文件大小： | 536K |
| 代理商： | AM2540-9PD4AHFU |
Rugged Environment
DC-DC Converters <100 W
M-Family
Edition 2/96 - Melcher AG
7 - 11
MELCHER
The Power Partners.
7.1
Table 9: Inhibit data
Characteristics
Conditions
min
typ
max
Unit
Uinh
Inhibit input voltage causing
switched on
Ui min...Ui max
–50
0.8
V DC
output voltage being…
switched off
2.4
50
I inh
Inhibit current
Uinh = 0
–60
–100
–220
A
Table 10: Output response time tr, values not applicable for modules equipped with option E
Type of Converter
t r at Po =0 and tf at Po = Po nom tr and tf at Po = 3/4 Po nom
t r at Po = Po nom
Unit
typ
max
typ
max
typ
max
A...LM 1001-7R and C/D/LMZ 1001-7R
5
10
5
10
20
ms
A...LM 1301-7R and C/D/LMZ 1301-7R
10
20
15
30
20
40
A...LM 1501-7R and C/D/LMZ 1501-7R
5
10
20
30
60
A...LM 1601-7R and C/D/LMZ 1601-7R
15
30
25
50
40
80
A...LM 1901-7R and C/D/LMZ 1901-7R
65
130
100
200
165
330
A...LM 2320-7 and C/D/LMZ 2320-7
20
40
30
60
50
100
A...LM 2540-7 and C/D/LMZ 2540-7
15
30
20
40
35
70
A...LM 3020-7 and C/D/LMZ 3020-7
55
110
85
170
145
290
A...LM 3040-7 and C/D/LMZ 3040-7
40
80
60
120
100
200
Conditions:
R input not used. For multiple output modules the figures indicated in the table above relate to the output which reacts
slowest. All outputs are resistively loaded. Variation of the input voltage within
Ui min...Ui max does not influence the values.
Hold-up Time and Output Response
When the input voltage is switched off the output voltage
will remain high for a certain hold-up time
th (fig. 8) before
the output voltage falls below 0.95
Uo nom. To achieve the
hold-up times indicated in fig. 9, A/B/C/D/FM and C/DMZ
modules require an external series diode in the input path.
This is necessary to prevent the discharge of the input ca-
pacitor through the source impedance or other circuits con-
nected to the same source. E/LM and LMZ modules have a
built-in series diode. In A/B/C/D/FM and C/DMZ modules,
no series diode is built-in, since it would generate up to
10 W of additional power loss inside the converter. Conse-
quently the maximum operational ambient temperature
would have to be reduced accordingly.
The behavior of the outputs is similar with either the input
voltage applied or the inhibit switched low.
An output voltage overshoot will not occur when the module
is turned on or off.
Fig. 8
Output response as a function of input voltage (on/off
switching) or inhibit control
Fig. 9
Typical hold-up time th versus relative input voltage at Io nom
2
345
6
1
0.10
1.00
1000.00
U
i DC
_____
U
i min DC
th [ms]
10.00
100.00
LM/LMZ
EM
C/DM, C/DMZ
A/B/FM
0
t
r
t
f
t
0
Inhibit
1
Output
0.1
U
o nom
t
0
1
0.95
U
o nom
t
h
U
i
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