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參數(shù)資料
| 型號： | QBC11ZHNTG |
| 廠商： | POWER-ONE INC |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT 132 W DC-DC REG PWR SUPPLY MODULE |
| 文件頁數(shù)： | 5/7頁 |
| 文件大?。?/td> | 127K |
| 代理商： | QBC11ZHNTG |
REV. SEP 16, 2003
Page 5 of 7
QBC DC/DC Series Data Sheet
132-Watt Quarter-Brick Bus Converter
Output Voltage Trim
The trim feature allows the user to adjust the output
voltage from the nominal. This can be used to
accommodate a different requirement or to do
production margin testing.
Industry Standard Trim (suffix –T)
The -T option units trim up with a resistor from the
Trim (#6) pin to the +Sense (#7) pin and trim down
with a resistor from the Trim (#6) pin to the –Sense
(#5) pin as shown in the Figure 4.
Figure 4. QBC11ZH Trim Schematic
The equations below determine the trim resistor
value required to achieve a
V change in the output
voltage.
+
+
=
%
2
100
%
225
.
1
%)
100
(
11
.
5
V
Vout
R
UP
, k
=
22
.
10
%
100
11
.
5
V
R
DOWN
, k
Where
V% is the output voltage change expressed
in percents of the nominal output voltage, Vout.
Notes:
1.
When the output voltage is trimmed up, the output power
from the converter must not exceed its maximum rating. The
power is determined by measuring the output voltage on the
output pins, and multiplying it by the output current.
2.
In
order
to
avoid
creating
apparent
load
regulation
degradation, it is important that the trim resistors are
connected directly to the remote sense pins, and not to the
load or to traces going to the load.
3.
The output voltage increase can be accomplished by either
the trim or by the remote sense or by a combination of both.
In any case the absolute maximum output voltage increase
shall not exceed 10% of the nominal output voltage
Safety Considerations
The QBC11ZH converter features 1500 Volt DC
isolation from input to output.
The input to output
resistance is greater than 10M
. This converter is
provided with basic insulation between input and
output circuits according to all IEC60950 based
standards.
Nevertheless, if the system using the
converter needs to receive safety agency approval,
certain rules must be followed in the design of the
system.
In particular, all of the creepage and
clearance
requirements
of
the
end-use
safety
requirements must be observed. These documents
include UL60950 - CSA60950-00 and EN60950,
although other or additional requirements may be
needed for specific applications.
The QBC11ZH converter has no internal fuse. The
external fuse must be provided to protect the system
from catastrophic failure as shown in Figure 3. The
fuse
with
a
rating
not
greater
than
6A
is
recommended. The user can select a lower rating
fuse based upon the highest inrush transient at the
maximum input voltage and the maximum input
current of the converter, which occurs at the
minimum input voltage.
Both input traces and the
chassis ground trace (if applicable) must be capable
of conducting a current of 1.5 times the value of the
fuse without opening. The fuse must not be placed
in the grounded input line, if any.
In order for the output of the QBC11ZH converter to
be considered as SELV (Safety Extra Low Voltage)
or
TNV-1,
according
to
all
IEC60950
based
standards, one of the following requirements must be
met in the system design:
If the voltage source feeding the module is SELV
or TNV-2, the output of the converter may be
grounded or ungrounded.
If the voltage source feeding the module is ELV,
the output of the converter may be considered
SELV only if the output is grounded per the
requirements of the standard.
If the voltage source feeding the module is a
Hazardous
Voltage
Secondary
Circuit,
the
voltage source feeding the module must be
provided with at least Basic insulation between
the source to the converter and any hazardous
voltages.
The entire system, including the
QBC11ZH converter, must pass a dielectric
withstand test for Reinforced insulation. Design
of
this
type
of
systems
requires
expert
engineering and understanding of the overall
safety requirements and should be performed by
qualified personnel.
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| QBC11ZH-NTG | 功能描述:DC/DC轉(zhuǎn)換器 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: |
| QBC11ZH-T | 制造商:Power-One 功能描述: |
| QBC-12 | 制造商:MURATA-PS 制造商全稱:Murata Power Solutions Inc. 功能描述:48VIN, 12V/22A Output High Efficiency, ?-Brick Bus Converters |
| QBC-12/22-L48B-C | 功能描述:DC/DC轉(zhuǎn)換器 264W 48V to 12V 22A BASEPLATE 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: |
| QBC-12/22-L48BM-C | 功能描述:DC/DC轉(zhuǎn)換器 264W 48V to 12V 22A BASEPLATE SURF MNT 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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