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參數(shù)資料
| 型號： | H48SV3R340NRFA |
| 廠商： | Delta Electronics, Inc. |
| 英文描述： | Delphi Series H48SV, 150W Half Brick Family DC/DC Power Modules: 48V in, 3.3V/10A out |
| 中文描述： | 德爾福系列H48SV，150瓦半磚系列DC / DC電源模塊：在48V電壓，3.3V/10A出 |
| 文件頁數(shù)： | 12/14頁 |
| 文件大小： | 545K |
| 代理商： | H48SV3R340NRFA |
THERMAL CONSIDERATIONS
Thermal management is an important part of the system
design. To ensure proper, reliable operation, sufficient
cooling of the power module is needed over the entire
temperature range of the module. Convection cooling is
usually the dominant mode of heat transfer.
Hence, the choice of equipment to characterize the
thermal performance of the power module is a wind
tunnel.
Thermal Testing Setup
Delta’s DC/DC power modules are characterized in
heated vertical wind tunnels that simulate the thermal
environments
encountered
equipment. This type of equipment commonly uses
vertically mounted circuit cards in cabinet racks in which
the power modules are mounted.
The
following
figure
shows
characterization setup. The power module is mounted
on a test PWB and is vertically positioned within the
wind tunnel. The space between the neighboring PWB
and the top of the power module is constantly kept at
6.35mm (0.25’’).
in
most
electronics
the
wind
tunnel
Note: Wind Tunnel Test Setup Figure Dimensions are in millimeters and (Inches)
12.7 (0.5”)
MODULE
AIR FLOW
50.8 (2.0”)
FACING PWB
PWB
AIR VELOCITY
AND AMBIENT
TEMPERATURE
MEASURED BELOW
THE MODULE
Figure 24:
Wind tunnel test setup
Thermal Derating
Heat can be removed by increasing airflow over the
module. The module’s maximum case temperature is
+100°C. To enhance system reliability, the power
module should always be operated below the maximum
operating temperature. If the temperature exceeds the
maximum module temperature, reliability of the unit may
be affected.
DS_H48SV3R310_08152006
12
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