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參數(shù)資料
| 型號(hào)： | 12H2540-7D4 |
| 廠商： | POWER-ONE INC |
| 元件分類： | 電源模塊 |
| 英文描述： | 2-OUTPUT 50 W DC-DC REG PWR SUPPLY MODULE |
| 封裝： | METAL, CASE H02, MODULE |
| 文件頁(yè)數(shù)： | 16/19頁(yè) |
| 文件大小： | 356K |
| 代理商： | 12H2540-7D4 |
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H Series Data Sheet
50 Watt DC-DC Cassette Converters
REV. MAR 27, 2006
Page 6 of 19
www.power-one.com
Output Protection
Each output is protected against overvoltages which could
occur due to a failure of the internal control circuit. Voltage
suppressor diodes (which under worst case condition may
become a short circuit) provide the required protection. The
suppressor diodes are not designed to withstand externally
applied overvoltages. Overload at any of the outputs will
cause a shut-down of all outputs.
Fig. 2
Typical output voltage Vo1 versus output currents Io
Fig. 3
H2320/H3020:
ΔVo2/3 (typ.) versus Io2/3 with different Io1
Fig. 4
H2540/H3040:
ΔVo2/3 (typ.) versus Io2/3 with different Io1
Parallel and Series Connection
Main outputs of equal nominal voltage can be connected in
parallel. It is important to assure that the main output of a
multiple-output converter is forced to supply a minimum
current of 0.1 A to enable correct operation of its own
auxiliary outputs.
Outputs one and two of a double-output model may be
connected
in
parallel
without
a
minimum
current
requirement at the main output. Outputs two and three of a
triple-output model can be connected in parallel.
In parallel operation, one or more of the main outputs may
operate continuously in current limitation which will cause
an increase in case temperature. Consequently, a
reduction of the maximum ambient temperature by 10 K is
recommended.
Main or auxiliary outputs can be connected in series with
any other output of the same or another converter. In series
connection, the maximum output current is limited by the
lowest current limit. Output ripple and regulation values are
added. Connection wiring should be kept as short as
possible.
If output terminals are connected together in order to
establish multi-voltage configurations, e.g. +5.1 V, ±12 V
etc. the common ground connecting point should be as
close as possible to the connector of the converter to avoid
excessive output ripple voltages.
Vo2/3 [V]
13
12
11
0
0.25
0.5
0.75
1.0
Vo2/3 0
Io2/3
Io2/3 nom
Io1 nom
0.5 Io1 nom
Io1 = 0 A
05119
Vo2/3 [V]
16
15
14
0
0.25
0.5
0.75
1.0
Vo2/3 0
Io2/3
Io2/3 nom
Io1 nom
0.5 Io1 nom
Io1 = 0 A
05120
1.0
0
0.5
V
o1
0.5
V
o1 nom
I
o
I
o nom
1.0
1.2
I
o nom
I
o1
I
o2,Io3
I
oL1
I
oL2,IoL3
.95
05022
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