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| 型号： | ULS-5/12-D48P-C |
| 厂商： | Murata Power Solutions Inc |
| 文件页数： | 13/24页 |
| 文件大小： | 0K |
| 描述： | CONVERTER DC/DC 5V @ 12A POS |
| 产品目录绘图： | ULS Series |
| 标准包装： | 128 |
| 系列： | ULS |
| 类型： | 隔离 |
| 输出数： | 1 |
| 电压 - 输入（最小）： | 36V |
| 电压 - 输入（最大）： | 75V |
| Voltage - Output 1： | 5V |
| 电流 - 输出（最大）： | 12A |
| 电源（瓦） - 制造商系列： | 60W |
| 电压 - 隔离： | 2.25kV（2250V） |
| 特点： | 具有远程开/关功能 |
| 安装类型： | 通孔 |
| 封装/外壳： | 8-DIP 模块，1/16 砖 |
| 尺寸/尺寸： | 1.30" L x 0.90" W x 0.40" H（33.0mm x 22.9mm x 10.2mm） |
| 包装： | 托盘 |
| 工作温度： | -40°C ~ 85°C |
| 效率： | 90% |
| 电源（瓦特）- 最大： | 60W |
| 产品目录页面： | 2720 (CN2011-ZH PDF) |
| 其它名称： | 811-2202 |
ULS 60-Watt Series
Sixteenth-brick DOSA-Compatible,
Performance Speci?cation Notes
Isolated DC/DC Converters
?
All speci?cations are typical unless noted. Ambient temperature =
+25°Celsius, V IN is nominal, output current is maximum rated nominal.
External output capacitance is 1 μF multilayer ceramic paralleled with
10?μF electrolytic. All caps are low ESR. These capacitors are necessary for
our test equipment and may not be needed in your application.
Testing must be kept short enough that the converter does not appreciably
heat up during testing. For extended testing, use plenty of air?ow. See
? Do not exceed maximum power ratings, Sense limits or output overvoltage
when adjusting output trim values.
? At zero output current, Vout may contain components which slightly
exceed the ripple and noise speci?cations.
? Output overload protection is non-latching. When the output overload
is removed, the output will automatically recover.
Derating Curves for temperature performance. All models are stable and
regulate within spec without external cacacitance.
11
All models are fully operational and meet published speci?cations,
including “cold start” at –40°C.
?
?
?
?
?
?
Input Ripple Current is tested and speci?ed over a 5-20 MHz bandwidth
and uses a special set of external ?lters only for the Ripple Current speci-
?cations. Input ?ltering is C IN = 33 μF, C BUS = 220 μF, L BUS = 12?μH. Use
capacitor rated voltages which are twice the maximum expected voltage.
Capacitors must accept high speed AC switching currents.
Note that Maximum Current Derating Curves indicate an average current
at nominal input voltage. At higher temperatures and/or lower air?ow, the
converter will tolerate brief full current outputs if the average RMS current
over time does not exceed the Derating curve. All Derating curves are
presented at sea level altitude. Be aware of reduced power dissipation
with increasing density altitude.
Mean Time Before Failure (MTBF) is calculated using the Telcordia
(Belcore) SR-332 Method 1, Case 3, Issue 1, ground ?xed conditions. Oper-
ating temperature = +30°C, full output load, natural air convection.
The output may be shorted to ground inde?nitely with no damage. The
Output Short Circuit Current shown in the speci?cations is an average con-
sisting of very short bursts of full rated current to test whether the output
circuit can be repowered.
The On/Off Control is normally driven from a switch or relay. An open
collector/open drain transistor may be used in saturation and cut-off
(pinch-off) modes. External logic may also be used if voltage levels are
fully compliant to the speci?cations.
Regulation speci?cations describe the deviation as the input line voltage
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The converter will shut off if the input falls below the undervoltage thresh-
old. It will not restart until the input exceeds the Input Start Up Voltage.
Short circuit shutdown begins when the output voltage degrades approxi-
mately 2% from the selected setting.
Output noise may be further reduced by installing an external ?lter. See
the Application Notes. Use only as much output ?ltering as needed and no
more . Larger caps (especially low-ESR ceramic types) may slow transient
response or degrade dynamic performance. Thoroughly test your applica-
tion with all components installed.
To avoid damage or unplanned shutdown, do not sink appreciable reverse
output current.
If reverse polarity is accidentally applied to the input, always connect an
external fast blow input fuse in series with the +V IN input.
Although extremely unlikely, failure of the internal components of this
product may expose external application circuits to dangerous voltages,
currents, temperatures or power levels. Please thoroughly verify all appli-
cations before committing them to service. Be sure to include appropri-
ately rated FUSES (see speci?cations and Application Notes) to reduce the
risk of failure.
If Sense is not wired to an external load, connect sense pins to their
respective Vout pins. Do not leave sense unconnected.
All models use ?xed switching frequencies.
or output load current is varied from a nominal midpoint value to either
extreme (50% load).
www.murata-ps.com/support
MDC_ULS Series.B31 Page 13 of 24
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