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参数资料
| 型号： | 40IMX35-D05D12-9Z |
| 厂商： | POWER-ONE INC |
| 元件分类： | 电源模块 |
| 英文描述： | 4-OUTPUT 35 W DC-DC REG PWR SUPPLY MODULE |
| 文件页数： | 13/15页 |
| 文件大小： | 191K |
| 代理商： | 40IMX35-D05D12-9Z |
AUG 13, 2002
Rev 1.0
Page 7 of 15
www.power-one.com
IMX35 Series: 35W DC-DC Converters
Product Specifications
9-36V, 18-75V, 40-121V & 60-150V Inputs
Aug 2002
Dual/Triple/Quad Outputs 3.3V, 5V, 12V & 15V
Output Power Vs AmbientTemp. and Airflow (-8 version)
0
20
40
60
80
100
120
-4
0
-2
0
10
25
40
55
70
85
10
0
11
0
Ambient Temperature (deg °C)
O
u
tput
P
o
w
e
r
(%
)
200LFM (0.5 m/s)
0 LFM
Thermal Considerations
If a converter, mounted on a PCB, is located in free, quasi-
stationary air (convection cooling) at the indicated maxi-
mum ambient temperature TA max (see table: Temperature
specifications) and is operated at its nominal input voltage
and output power, the case temperature TC measured at
the Measuring point of case temperature TC (see: Mechani-
cal Data) will approach the indicated value TC max after the
warm-up phase. However, the relationship between TA and
TC depends heavily on the conditions of operation and inte-
gration into a system. The thermal conditions are influ-
enced by input voltage, output current, airflow, temperature
of surrounding components and the surfaces and proper-
ties of the printed circuit board. TA max is therefore only an
indicative value and under practical operating conditions,
the ambient temperature TA may be higher or lower than
this value.
Caution: The case temperature TC measured at the:
Measuring point of case temperature TC (see: Mechani-
cal Data) may under no circumstances exceed the
specified maximum value. The installer must ensure that
under all operating conditions TC remains within the lim-
its stated in the table: Temperature specifications.
Option -8
Extended Temperature Range
Extension of the temperature range from standard
–40...71°C to –40...85°C (upto 110°C). The modules will
provide the specified ouptut power with free air convection
cooling. In the upper temperature range the output power
derating below should be observed.
Fig. 6
Maximum allowed output power versus ambient tempera-
ture.
Short Circuit Behaviour
The current limit characteristic shuts down the converter
whenever a short circuit is applied to an output. It acts self-
protecting and automatically recovers after removal of the
overload condition (hiccup mode).
Overtemperature Protection
The converter is protected against possible overheating by
means of an internal temperature monitoring circuit. It
shuts down the unit above the internal temperature limit
and attempts to automatically restart. This feature prevents
excessive internal temperature building up which could oc-
cur under heavy overload conditions.
Connection in Series
The outputs of one or several single or double output power
trains may be connected in series without any precautions.
Connection in Parallel
Several outputs of the same converter with equal output
voltage (e.g. 5V / 5V) can be put in parallel and will share
their output currents almost equally.
NOTE: A separate application note is available for uses
when all outputs are paralleled together.
Parallel operation of several converters with the same out-
put voltage may cause start-up problems at initial start-up.
This is only advisable in applications where one converter
is able to deliver the full load current as is required in true
redundant systems. It is recommended not to parallel more
than three units at full load.
The first outputs (main output of 5.1V or 3.3V) of triple out-
put units should not be paralleled, except in true redundant
systems using decoulping diodes.
1
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