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NC12S0A0H06PNFA Datasheet(PDF) 10 Page - Delta Electronics, Inc.

Part No. NC12S0A0H06PNFA
Description  Delphi NC06 Series Non-Isolated Point of Load DC/DC Power Modules: 12Vin, 0.9V~5.0Vout, 6A
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Maker  DELTA [Delta Electronics, Inc.]
Homepage  http://www.deltaww.com
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NC12S0A0H06PNFA Datasheet(HTML) 10 Page - Delta Electronics, Inc.

 
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DS_NC12S06A_02072007
10
THERMAL CONSIDERATION
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
in
most
electronics
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
the
wind
tunnel
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’’).
Thermal Derating
Heat can be removed by increasing airflow over the
module. 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.


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