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| 型号： | ULS-3.3/20-D48N-C |
| 厂商： | Murata Power Solutions Inc |
| 文件页数： | 24/24页 |
| 文件大小： | 0K |
| 描述： | CONVERTER DC/DC 3.3V @ 20A NEG |
| 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： | 3.3V |
| 电流 - 输出（最大）： | 20A |
| 电源（瓦） - 制造商系列： | 66W |
| 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： | 66W |
| 产品目录页面： | 2719 (CN2011-ZH PDF) |
| 其它名称： | 811-2197 |
ULS 60-Watt Series
Sixteenth-brick DOSA-Compatible,
Isolated DC/DC Converters
Vertical Wind Tunnel
Murata Power Solutions employs a computer controlled
custom-designed closed loop vertical wind tunnel, infrared
video camera system, and test instrumentation for accurate
air?ow and heat dissipation analysis of power products.
IR Transparent
The system includes a precision low ?ow-rate anemometer,
optical window
Unit under
Variable
speed fan
variable speed fan, power supply input and load controls,
temperature gauges, and adjustable heating element.
IR Video
Camera
Precision
low-rate
anemometer
3” below UUT
Ambient
temperature
sensor
Air?ow
collimator
test (UUT)
Heating
element
The IR camera monitors the thermal performance of the
Unit Under Test (UUT) under static steady-state conditions. A
special optical port is used which is transparent to infrared
wavelengths.
Both through-hole and surface mount converters are sol-
dered down to a host carrier board for realistic heat absorp-
tion and spreading. Both longitudinal and transverse air?ow
studies are possible by rotation of this carrier board since
there are often signi?cant differences in the heat dissipation
in the two air?ow directions. The combination of adjustable
air?ow, adjustable ambient heat, and adjustable Input/Output
currents and voltages mean that a very wide range of mea-
surement conditions can be studied.
The collimator reduces the amount of turbulence adjacent
to the UUT by minimizing air?ow turbulence. Such turbulence
in?uences the effective heat transfer characteristics and gives
false readings. Excess turbulence removes more heat from
some surfaces and less heat from others, possibly causing
uneven overheating.
Both sides of the UUT are studied since there are different
thermal gradients on each side. The adjustable heating element and
fan, built-in temperature gauges, and no-contact IR camera mean that
Figure 9. Vertical Wind Tunnel
Murata Power Solutions, Inc.
11 Cabot Boulevard, Mans?eld, MA 02048-1151 U.S.A.
ISO 9001 and 14001 REGISTERED
power supplies are tested in real-world conditions.
This product is subject to the following operating requirements
and the Life and Safety Critical Application Sales Policy :
Refer to: http://www.murata-ps.com/requirements/
Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other
technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply
the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Speci?cations are subject to change without
notice.
? 2014 Murata Power Solutions, Inc.
www.murata-ps.com/support
MDC_ULS Series.B31 Page 24 of 24
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