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参数资料
| 型号： | HPQ-12/25-D48NBL1-C |
| 厂商： | Murata Power Solutions Inc |
| 文件页数： | 15/16页 |
| 文件大小： | 0K |
| 描述： | CONV DC/DC 300W 12V 25A |
| 标准包装： | 60 |
| 系列： | * |
| 其它名称： | HPQ-12/25-D48NBL1C HPQ-12/25-D48NBL1C-ND Q7059696A |
HPQ-12/25-D48 Series
Isolated 300-Watt Quarter Brick DC-DC Converters
Remote Sense Input (See Speci?cation Note 7)
Sense inputs compensate for output voltage inaccuracy delivered at the load.
Contact and PCB resistance
losses due to IR drops
This is done by correcting voltage drops along the output wiring such as mod-
erate IR drops and the current carrying capacity of PC board etch. Sense inputs
+VIN
+VOUT
I OUT
also improve the stability of the converter and load system by optimizing the
control loop phase margin.
+SENSE
Sense Current
Note: The Sense input and power Vout lines are internally connected through
low value resistors to their respective polarities so that the converter can
ON/OFF
CONTROL
TRIM
Sense Return
LOAD
operate without external connection to the Sense. Nevertheless, if the Sense
function is not used for remote regulation, the user should connect +Sense to
-SENSE
I OUT Return
+Vout and –Sense to –Vout at the converter pins.
–VIN
–VOUT
The remote Sense lines carry very little current. They are also capacitively
coupled to the output lines and therefore are in the feedback control loop to
regulate and stabilize the output. As such, they are not low impedance inputs
Contact and PCB resistance
losses due to IR drops
Figure 8. Remote Sense Circuit Con?guration
and must be treated with care in PC board layouts. Sense lines on the PCB
should run adjacent to DC signals, preferably Ground. In cables and discrete
wiring, use twisted pair, shielded tubing or similar techniques
Please observe Sense inputs tolerance to avoid improper operation:
[Vout(+) –Vout(-)] – [ Sense(+) – Sense(-)] ≤ 10% of Vout
Output overvoltage protection is monitored at the output voltage pin, not the
Sense pin. Therefore excessive voltage differences between Vout and Sense
together with trim adjustment of the output can cause the overvoltage protec-
tion circuit to activate and shut down the output.
Power derating of the converter is based on the combination of maximum
output current and the highest output voltage. Therefore the designer must
ensure:
(Vout at pins) x (Iout) ≤ (Max. rated output power)
www.murata-ps.com/support
MDC_HPQ-12/25-D48 Series.B07 Page 15 of 16
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相关代理商/技术参数 |
参数描述 |
|---|---|
| HPQ1225D48NL1C | 制造商:Murata Power Solutions 功能描述: |
| HPQ-12-D48_11 | 制造商:MURATA 制造商全称:Murata Manufacturing Co., Ltd. 功能描述:Isolated 300-Watt Quarter Brick DC/DC Converters |
| HPQ-12W | 制造商:MINI 制造商全称:Mini-Circuits 功能描述:POWER SPLITTERS/COMBINERS |
| HPQ-15 | 制造商:MINI 制造商全称:Mini-Circuits 功能描述:POWER SPLITTERS/COMBINERS |
| HPQ-15W | 制造商:MINI 制造商全称:Mini-Circuits 功能描述:POWER SPLITTERS/COMBINERS |
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