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參數(shù)資料
| 型號： | UEP-12/1400-D24 |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| 文件頁數(shù)： | 6/11頁 |
| 文件大?。?/td> | 519K |
| 代理商： | UEP-12/1400-D24 |
UEP Series
1 5 - 3 0 W , S I N G L E O U T P U T D C / D C C O N V E R T E R S
4
Trimming Output Voltages
These converters have a trim capability (pin 6) that allows users to adjust the
output voltage ±5%. Adjustments to the output voltage can be accomplished
via a trim pot, Figure 2, or a single xed resistor as shown in Figures 3 and 4.
A single xed resistor can increase or decrease the output voltage depending
on its connection. Fixed resistors should have an absolute TCR less than
100ppm/°C to minimize sensitivity to changes in temperature.
A single resistor connected from the Trim (pin 6) to the +Output (pin 4), see
Figure 3, will decrease the output voltage. A resistor connected from the Trim
(pin 6) to –Output (pin 5) will increase the output voltage.
Trim adjustment greater than 5% can have an adverse effect on the convert-
er's performance and is not recommended.
20k
5-22
Turns
+INPUT
+OUTPUT
TRIM
–INPUT
ON/OFF
CONTROL
1
2
3
4
LOAD
–OUTPUT
5
6
+INPUT
+OUTPUT
TRIM
–INPUT
ON/OFF
CONTROL
1
2
3
4
LOAD
RTRIM DOWN
–OUTPUT
5
6
+INPUT
+OUTPUT
–OUTPUT
TRIM
–INPUT
ON/OFF
CONTROL
1
2
3
4
5
LOAD
6
RTRIM UP
Figure 2.Trim Connections Using A Trim Pot
Figure 4.Trim Connections To Increase Output Voltage Using Fixed Resistors
Figure 3.Trim Connections To Decrease Output Voltage Using Fixed Resistors
–16.9
DOWN
RT
(k
) =
3.3 – VO
2.49(VO – 1.27)
UEP-3.3/4500-D12
UEP-3.3/4500-D24
UEP-3.3/4500-D48
UEP-3.3/6000-D48
–16.9
UP
RT (k
) =
VO – 3.3
3.16
15
DOWN
RT
(k
) =
5 – VO
2.49(VO – 2.527)
UEP-5/3500-D12
UEP-5/3500-D24
UEP-5/3500-D48
UEP-5/6000-D48
–15
UP
RT (k
) =
VO – 5
6.292
–49.9
DOWN
RT
(k
) =
12 – VO
6.34(VO – 5.714)
UEP-12/1400-D12
UEP-12/1400-D24
UEP-12/1400-D48
–49.9
UP
RT (k
) =
VO – 12
36.23
–63.4
DOWN
RT
(k
) =
15 – VO
7.87(VO – 7.136)
UEP-15/1200-D12
UEP-15/1200-D24
UEP-15/1200-D48
–63.4
UP
RT (k
) =
VO – 15
56.16
Accuracy of adjustment is subject to tolerances of resistor values
and factory-adjusted output accuracy. VO = desired output voltage.
Model
Trim Equation
T E C H N I C A L
N O T E S
Floating Outputs
Since these are isolated DC/DC converters, their outputs are "oating."
Designers will usually use the –Output (pin 5) as the ground/return of the
load circuit.You can, however, use the +Output (pin 4) as ground/return to
effectively reverse the output polarity.
Minimum Output Loading Requirements
3.3 and 5V models employ a synchronous-rectier design topology. All
models regulate within spec and are stable under no-load conditions. 12/15V
models employ a traditional forward, diode-rectication architecture and
require 25mA loading to achieve their listed regulation specs. Operation
under 25mA load conditions will not damage the 12/15V devices; however
they may not meet all listed specications.
Filtering and Noise Reduction
All UEP Series DC/DC Converters achieve their rated ripple and noise
specications with no external input/output capacitors. In critical applications,
input/output noise may be further reduced by installing external I/O caps.
Input capacitors should be selected for bulk capacitance, low ESR and high
rms-ripple-current ratings. Output capacitors should be selected for low ESR
and appropriate frequency response. All caps should have appropriate volt-
age ratings and be mounted as close to the converters as possible.
The most effective combination of external I/O capacitors will be a function
of load and layout conditions. Our Applications Engineers can recommend
potential solutions and discuss the possibility of our modifying a given
device’s internal ltering to meet your specic requirements. Contact our
Applications Engineering Group for additional details.
Input Fusing
Certain applications and/or safety agencies may require the installation of
fuses at the inputs of power conversion components. Fuses should also be
used if the possibility of sustained, non-current-limited, input-voltage polarity
reversals exists. For DATEL UEP Series DC/DC Converters, you should use
slow-blow type fuses with values no greater than the following.
VIN Range
Fuse Value
D12 Models
3 Amps
D24 Models
2 Amps
D48 Models (1.2-4.5A)
1 Amp
D48 Models (6A)
2 Amps
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相關代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| UEP-12-1400-D48 | 制造商:MURATA 制造商全稱:Murata Manufacturing Co., Ltd. 功能描述:Single Output UEP Models |
| UEP-15/1200-D12 | 功能描述:DC/DC轉(zhuǎn)換器 18W 12V - 15V 1200mA RoHS:否 制造商:Murata 產(chǎn)品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風格:SMD/SMT 封裝 / 箱體尺寸: |
| UEP-15/1200-D12-C | 功能描述:DC/DC轉(zhuǎn)換器 18W 12V - 15V 1200mA RoHS:否 制造商:Murata 產(chǎn)品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風格:SMD/SMT 封裝 / 箱體尺寸: |
| UEP-15/1200-D12N | 制造商:Murata Power Solutions 功能描述:DC-DC Converter, (10 to 18) V to (15) V |
| UEP-15/1200-D12N-C | 功能描述:DC/DC轉(zhuǎn)換器 18W 12V - 15V 1200mA NEGATIVE POLARITY RoHS:否 制造商:Murata 產(chǎn)品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風格:SMD/SMT 封裝 / 箱體尺寸: |
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