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參數(shù)資料
| 型號： | UHE-1.2/10000-D24NRL1T |
| 廠商： | CD TECHNOLOGIES INC |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT 12 W DC-DC REG PWR SUPPLY MODULE |
| 文件頁數(shù)： | 11/13頁 |
| 文件大小： | 425K |
| 代理商： | UHE-1.2/10000-D24NRL1T |
UHE Models
1 2 - 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
Remote Sense (Optional on 1.2-5VOUT models)
Note: The Sense and VOUT lines are internally connected through 10
resistors. Nevertheless, if the sense function is not used for remote regulation
the user should connect the +Sense to +VOUT and –Sense to –VOUT at the
DC/DC converter pins.
UHE series converters have a sense feature to provide point of use regula-
tion, thereby overcoming moderate IR drops in pcb conductors or cabling. The
remote sense lines carry very little current and therefore require minimal cross-
sectional-area conductors. The sense lines are used by the feedback control-
loop to regulate the output. As such, they are not low impedance points and
must be treated with care in layouts and cabling. Sense lines on a pcb should
be run adjacent to dc signals, preferably ground. In cables and discrete wiring
applications, twisted pair or other techniques should be implemented.
UHE series converters will compensate for drops between the output
voltage at the DC/DC and the sense voltage at the DC/DC provided that:
[VOUT(+) –VOUT(–)] –[Sense(+) –Sense (–)]
≤ 5% VOUT
Output overvoltage protection is monitored at the output voltage pin, not
the Sense pin. Therefore, excessive voltage differences between VOUT and
Sense in conjunction with trim adjustment of the output voltage can cause
LOAD
R2
+OUTPUT
–INPUT
+INPUT
ON/OFF
CONTROL
TRIM
+SENSE
–OUTPUT
–SENSE
7
8
2
1
9
6
5
4
LOAD
+OUTPUT
–INPUT
Sense Current
Contact and PCB resistance
losses due to IR drops
Contact and PCB resistance
losses due to IR drops
Sense Return
+INPUT
ON/OFF
CONTROL
TRIM
+SENSE
–OUTPUT
–SENSE
7
8
2
1
9
5
IOUT Return
IOUT
6
4
Figure 9. Remote Sense Circuit Conguration
Figure 8.Trim Connections To Increase Output Voltages
(for all models except 1.2V models which will decrease VOUT)
7
the overvoltage protection circuitry to activate (see Performance Specica-
tions for overvoltage limits). Power derating is based on maximum output
current and voltage at the converter’s output pins. Use of trim and sense
functions can cause output voltages to increase thereby increasing output
power beyond the UHE’s specied rating or cause output voltages to climb
into the output overvoltage region. Therefore, the designer must ensure:
(VOUT at pins) x (IOUT)
≤ rated output power
–3.169
0.3232
UHE-1.5/10000-D12, -D24, -D48
UHE-1.8/10000-D12, -D24, -D48
UHE-2.5/10000-D12, -D24, -D48
UHE-3.3/7500-Q12, -Q24, -D48
VO – 1.5
R2 (k
) =
R1 (k
) =
–3.169
0.459(VO – 0.7096)
1.5 – VO
1.2 – VO
–7.596
0.9647
VO – 1.8
R2 (k
) =
R1 (k
) =
–7.596
1.027(VO – 0.9352)
1.8 – VO
–7.503
2.142
VO – 2.5
R2 (k
) =
R1 (k
) =
–7.503
2.226(VO – 0.9625)
2.5 – VO
UHE-12/2500-D12, -D24, -D48
–34.8
29.5
VO – 12
R2 (k
) =
R1 (k
) =
–34.8
10(VO – 2.5)
12 – VO
UHE-15/2000-D12, -D24, -D48
–43.3
37.875
VO – 15
R2 (k
) =
R1 (k
) =
–43.3
13.3(VO – 2.5)
15 – VO
–22.42
5.65
VO – 3.3
R2 (k
) =
R1 (k
) =
–22.42
3.21(VO – 1.759)
3.3 – VO
UHE-5/5000-Q12, -Q48, UHE-5/6000-D48
–15.52
5.58
VO – 5
R2 (k
) =
R1 (k
) =
–15.52
2.15(VO – 2.592)
5 – VO
VO – 1.2
R1 (k
) =
R2 (k
) =
–1.413
1.308(VO – 0.793)
–1.413
1.037
UHE-1.2/10000-D12, -D24, -D48
Trim Up
Trim Down
Trim Equations
Note: Resistor values are in k
. Adjustment accuracy is subject to resistor
tolerances and factory-adjusted output accuracy. VO = desired output voltage.
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| UHE-15/2000-D12 | 功能描述:DC/DC轉(zhuǎn)換器 30W 12V to 15V 2A 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(biāo)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(fēng)格:SMD/SMT 封裝 / 箱體尺寸: |
| UHE-15/2000-D12-C | 功能描述:DC/DC轉(zhuǎn)換器 30W 12V to 15V 2A 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(biāo)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(fēng)格:SMD/SMT 封裝 / 箱體尺寸: |
| UHE-15/2000-D12N | 功能描述:DC/DC轉(zhuǎn)換器 30W 12V to 15V 2A 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(biāo)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(fēng)格:SMD/SMT 封裝 / 箱體尺寸: |
| UHE-15/2000-D12N-C | 功能描述:DC/DC轉(zhuǎn)換器 30W 12V to 15V 2A 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(biāo)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(fēng)格:SMD/SMT 封裝 / 箱體尺寸: |
| UHE-15/2000-D24 | 功能描述:DC/DC轉(zhuǎn)換器 30W 24V to 15V 2A 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(biāo)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(fēng)格:SMD/SMT 封裝 / 箱體尺寸: |
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