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參數(shù)資料
| 型號： | 48IXP3-05-7 |
| 廠商： | POWER-ONE INC |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT 2.5 W DC-DC REG PWR SUPPLY MODULE |
| 封裝： | PLASTIC, DIL-24/7 |
| 文件頁數(shù)： | 4/7頁 |
| 文件大?。?/td> | 77K |
| 代理商： | 48IXP3-05-7 |
Board Mountable
DC-DC Converters
IMP 3 Series
Edition 4/04.2001
4/6
Table 3c: Output data for double output types
Output
.. IMP/IXP 3-05-05
.. IMP/IXP 3-12-12
.. IMP/IXP 3-15-15
Characteristics
Conditions
min
typ
max
min
typ
max
min
typ
max
Unit
Uo nom
Output voltage
Ui nom, Io nom
2
× 52 × 12
2
× 15
V
Uo
2
× 4.90
2
× 5.10 2 × 11.76 2 × 12.24 2 × 14.70 2 × 15.30
Io nom
Nominal output current:
2
× 250
2
× 125
2
× 100
mA
24 IMP 3
Ui = 9...11 V DC
2
× 200
2
× 100
2
× 80
48 IMP 3
Ui = 18...21 V DC
2
× 200
2
× 100
2
× 80
uo
Output voltage noise
Ui min...Ui max
150
mVpp
(BW = 20 MHz)
(0.2...1)
Io nom
DUo U
Static line regulation
Ui min...Ui max, Io nom
±1
±1%
DUo I
Static load regulation
Ui nom, (0.2...1) Io nom
±3
aUo
Temperature coefficient
Ui nom, Io nom
±0.02
%/K
fs
Switching frequency
50
kHz
Connection in Parallel
Connecting the outputs of two or more converters in paral-
lel is not recommended due to uneven power distribution
among the outputs.
Protection Scheme
The IMP series is continuously short circuit protected by
means of input power limitation. The unit will not be dam-
aged if started up into a short circuit. After removal of the
short circuit, it will resume normal operation.
The IMP series is also no-load proof, meaning that the
regulation is still effective with no load and the output volt-
age does not rise. However, due to component tolerances,
oscillation could occur and ripple and noise can be outside
of specified values. If the converter is used in senitive elec-
tronic circuits with no-load conditions, it is recommended to
pre-load the outputs with at least 20% of the specified nomi-
nal load.
Auxiliary Function
SD-input
The output voltage is turned on if the pin 20 is open or a
voltage of 8...10 V DC is applied. If the voltage at pin 20 is
between –0.3 and 2 V DC, the output voltage is turned off.
The maximum voltage without damage is limited to 20 V
and the maximum allowed current is limited to 3 mA.
Thermal Considerations
If a converter is operated, the relationship between the am-
bient temperature
TA and the case temperature TC depends
heavily on the conditions of operation and integration into a
system. The thermal conditions are influenced by input volt-
age, output current, airflow, temperature of surrounding
components and surfaces and the properties of the printed
circuit board. The specified maximum ambient temperature
TA max is therefore only an indicative value and under practi-
cal 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 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.
Connection in Series
The outputs of one or more units can be connected in se-
ries. No suppressor diodes are required. Power-One how-
ever recommends to protect each individual output with a
Zener diode or preferably a suppressor diode, to avoid re-
verse polarity that may occur if the output voltages do not
rise simultaneously.
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