參數(shù)資料
型號: 48IMS15-05-05-9IZ
廠商: POWER-ONE INC
元件分類: 電源模塊
英文描述: 2-OUTPUT 14 W DC-DC REG PWR SUPPLY MODULE
文件頁數(shù): 11/14頁
文件大?。?/td> 161K
代理商: 48IMS15-05-05-9IZ
Board Mountable
DC-DC Converters
IMS 15 Series
REV. JUN 09, 2004
6/14
Table 5b: Output data for dual and double output units.
Output
2
××××× 5 V
2
××××× 12 V
2
××××× 15 V
2
××××× 24 V
Characteristics
Conditions
min typ max
Unit
Uo1
Output voltage
Ui nom
4.92
5.08
11.82
12.18 14.78
15.22 23.64
24.36
V
Uo2
Io = 0.5 Io nom
4.92
5.08
11.82
12.18 14.78
15.22 23.64
24.36
Io nom
Output current 1
Ui min...Ui max
2
× 1.4
2
× 0.7
2
× 0.56
2
× 0.35
A
IoL
Current limit 2, 4
Ui nom, TC = 25
°C
3.5
1.9
1.6
0.95
Uo = 90% Uo nom
DUo U Line regulation
Ui min...Ui max, Io nom
±1
±1%
DUo l
Load regulation
Ui nom
±3
Io = (0.1...1) Io nom
uo1/2
Output voltage noise
Ui min...Ui max
5
80
120
150
240
mVpp
Io = Io nom
6
40
60
75
80
Uo L
Output overvoltage limit. 7
Min. load 1%
115
130
115
130
115
130
115
130
%
Co ext
Admissible capacitive load 3
4000
680
470
180
F
uo d
Dynamic
Voltage deviat.
Ui nom
±250
±680
±750
±900
mV
td
load
Recovery time
Io nom
1/2 Io nom
1111
ms
regulation
aUo
Temperature coefficient
Ui min...Ui max
±0.02
±0.02 %/K
DUo/DTC
Io = 0...Io max
1 Flexible load distribution: Each output is capable of delivering 75% of Po nom according to table: Type Survey. The other output should
not exceed the difference to the total output power
Po nom.
2 The current limit is primary side controlled.
3 Measured with both outputs connected in parallel.
4 Conditions for specified output. Other output loaded with constant
current
Io = 0.5 Io nom.
5 BW = 20 MHz
6 Measured with a probe according to EN 61204
7 The overvoltage protection is not tracking with R/Trim control.
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: Mechanical
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 influenced
by input voltage, output current, airflow, temperature of sur-
rounding components and surfaces and the properties of
the printed circuit board.
TA max is therefore only an indica-
tive value and under practical operating conditions, the am-
bient 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 speci-
fied maximum value. The installer must ensure that un-
der all operating conditions
TC remains within the limits
stated in the table:
Temperature specifications.
Overtemperature Protection
The converters are protected from possible overheating by
means of an internal temperature monitoring circuit. It shuts
down the unit above the internal temperature limit and at-
tempts to automatically restart every 50 to 60 ms. This fea-
ture prevents from excessive internal temperature building
up which could occur in heavy overload conditions.
Connection in Series
The outputs of one or several single or double output units
can be connected in series without any precautions, taking
into consideration that the highest output voltage should
remain below 42 V to ensure that the output remains SELV.
Connection in Parallel
Double 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. Parallel operation of
single or double outputs of two or more converters with the
same output 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 e.g. re-
quired in true redundant systems.
Short Circuit Behaviour
The current limit characteristic shuts down the converter
whenever a short circuit is applied to its output. It acts self-
protecting and automatically recovers after removal of the
overload condition (hiccup mode).
Output Overvoltage Protection
The output of single output units as well as -0503- and
-05-05- types are protected against overvoltages by a sec-
ond control loop. In the event of an overvoltage on one of
the outputs the unit will shut down and attempt to restart
approximately every 50 to 60 ms. Double and dual output
units (with exception of the -0503- and -05-05- types) are
protected against overvoltages by a Zener diode across the
second output. Under worst case conditions the Zener di-
ode will short circuit. Since with double output units both
outputs track each other the protection diode is only pro-
vided in one of the outputs. The main purpose of this fea-
ture is to protect against possible overvoltages which could
occur due to a failure in the feedback control circuit. The
output overvoltage protection is not designed to withstand
externally applied overvoltages.
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