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参数资料
| 型号： | 20IMX7-24-24-7M |
| 厂商： | POWER-ONE INC |
| 元件分类： | 电源模块 |
| 英文描述： | 2-OUTPUT 6.2 W DC-DC REG PWR SUPPLY MODULE |
| 封装： | 2 INCH X 1 INCH, 10.50 MM HEIGHT, PACKAGE-9 |
| 文件页数： | 5/15页 |
| 文件大小： | 339K |
| 代理商： | 20IMX7-24-24-7M |
Rugged Environment
DC-DC Converters <40 Watt
IMX 7 Series
Edition 5/9.99
13/15
MELCHER
The Power Partners.
Safety and Installation Instructions
Installation Instruction
Installation of the DC-DC converters must strictly follow the
national safety regulations in compliance with the enclo-
sure, mounting, creepage, clearance, casualty, markings
and segregation requirements of the end-use application.
Connection to the system shall be made via a printed circuit
board according to:
Mechanical Data.
The units should be connected to a secondary circuit.
Check for hazardous voltages before altering any connec-
tions.
Do not open the module.
Ensure that a unit failure (e.g. by an internal short-circuit)
does not result in a hazardous condition. See also:
Safety
of operator accessible output circuit.
Input Fuse
To prevent excessive current flowing through the input sup-
ply line in case of a short-circuit across the converter input
an external fuse should be installed in a non earthed input
supply line. We recommend a fast acting fuse F2A for
20 IMX 7 and F1A for 40 IMX 7 and F0.63A for 70/110 IMX
7 types.
Cleaning Agents
In order to avoid possible damage, any penetration of
cleaning fluids has to be prevented, since the power sup-
plies are not hermetically sealed.
Standards and approvals
All DC-DC converters are pending to be UL recognized
according to UL 1950, UL recognized for Canada to CAN/
CSA C22.2 No. 950-95 and LGA approved to IEC/EN
60950 standards.
The units have been evaluated for:
Building in
Supplementary insulation input to output, based on their
maximum input voltage
The use in a pollution degree 2 environment
Connecting the input to a secondary circuit which is sub-
ject to a maximum transient rating of 1500 V for 20/40
IMX 7, 2000 V for 70 IMX 7 and 2500 V for 110 IMX 7
types.
The DC-DC converters are subject to manufacturing sur-
veillance in accordance with the above mentioned UL,
CSA, EN and ISO 9001 standards.
Protection Degree
The protection degree of the DC-DC converters is IP 30.
Fig. 25
Pin allocation standard pinout
1
2
3
4
5
10012
Table 14: Pin allocation for C-pinout (option C)
Pin
Single output units
Dual output units
1
Vi+
2Vi–
Vi–
3Vo+
Vo+
4
no pin
Go
5Vo–
Vo–
Table 13: Pin allocation, standard pinout
Pin
Single output units
Double output units
1
Vi+
2Vi–
Vi–
3i
i
4
n.c.
R
10
Vo–
Vo1–
11
Vo+
Vo1+
12
Vo–
Vo2–
13
R
Vo2+
14
n.c./D
n.c.
Bottom view
1
4
10
14
10011
2
3
11
12
13
Isolation
The electric strength test is performed as factory test in ac-
cordance with IEC/EN 60950 and UL 1950 and should not
be repeated in the field. Melcher will not honour any guar-
antee claims resulting from electric strength field tests.
Table 12: Electric strength test voltages
Characteristic
I/O
O/O
Unit
20/40 IMX 70 IMX 110 IMX
Electric strength
1.2
1.5
2.0
0.1
kVrms
test voltage 1 s
1.5
2.0
2.5
0.15
kV DC
Coupling
≈1.2
-
nF
capacitance
Insulation resist.
>100
-
M
at 500 V DC
Partial discharge
Consult factory
-
kV
extinction voltage
Fig. 26
Pin allocation C pinout, bottom view
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