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參數(shù)資料
| 型號(hào)： | S48SA1R503PRFB |
| 廠商： | Delta Electronics, Inc. |
| 英文描述： | Delphi Series S48SA, 33W Family DC/DC Power Modules: 48V in, 1.2V/12A out |
| 中文描述： | 德爾福系列S48SA，33W系列DC / DC電源模塊：在48V電壓，1.2V/12A出 |
| 文件頁數(shù)： | 9/13頁 |
| 文件大?。?/td> | 808K |
| 代理商： | S48SA1R503PRFB |
DS_S48SA1R212_05122006
9
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 or a heat sink is
6.35mm (0.25”).
Thermal Derating
Heat can be removed by increasing airflow over the
module. Figure 19 shows maximum output is a function
of ambient temperature and airflow rate. 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.
FACING PWB
in
most
electronics
the
wind
tunnel
Note: Wind Tunnel Test Setup Figure Dimensions are in millimeters and (Inches)
Figure 17:
Wind tunnel test setup
10 (0.4”)
MODULE
AIR FLOW
50.8 (2.0”)
PWB
AIR VELOCITY
AND AMBIENT
TEMPERATURE
MEASURED BELOW
THE MODULE
THERMAL CURVES
S48SA1R212(Standard) Output Current vs. Ambient Temperature and Air Velocity
@ Vin = 48V (Either Orienation)
Output Current(A)
0
2
4
6
8
10
12
14
65
70
75
80
85
90
95
105
Ambi100
℃
)
Natural
Convection
100LFM
200LFM
300LFM
400LFM
500LFM
600LFM
Figure 19:
Output current vs. ambient temperature and air velocity
@ V
in
=48V
Figure 18:
Hot spot temperature measured point
＊
The allowed maximum hot spot temperature is defined at 102
℃
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| S48SA1R503PRFC | Delphi Series S48SA, 33W Family DC/DC Power Modules: 48V in, 1.2V/12A out |
| S48SA1R503PTFA | Delphi Series S48SA, 33W Family DC/DC Power Modules: 48V in, 1.2V/12A out |
| S48SA1R503PTFB | Delphi Series S48SA, 33W Family DC/DC Power Modules: 48V in, 1.2V/12A out |
| S48SA1R503PTFC | Delphi Series S48SA, 33W Family DC/DC Power Modules: 48V in, 1.2V/12A out |
| S48SA1R506NRFA | Delphi Series S48SA, 33W Family DC/DC Power Modules: 48V in, 1.2V/12A out |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| S48SA1R503PRFC | 制造商:DELTA 制造商全稱:Delta Electronics, Inc. 功能描述:Delphi Series S48SA, 33W Family DC/DC Power Modules: 48V in, 1.2V/12A out |
| S48SA1R503PTFA | 制造商:DELTA 制造商全稱:Delta Electronics, Inc. 功能描述:Delphi Series S48SA, 33W Family DC/DC Power Modules: 48V in, 1.2V/12A out |
| S48SA1R503PTFB | 制造商:DELTA 制造商全稱:Delta Electronics, Inc. 功能描述:Delphi Series S48SA, 33W Family DC/DC Power Modules: 48V in, 1.2V/12A out |
| S48SA1R503PTFC | 制造商:DELTA 制造商全稱:Delta Electronics, Inc. 功能描述:Delphi Series S48SA, 33W Family DC/DC Power Modules: 48V in, 1.2V/12A out |
| S48SA1R506NRFA | 制造商:DELTA 制造商全稱:Delta Electronics, Inc. 功能描述:Delphi Series S48SA, 33W Family DC/DC Power Modules: 48V in, 1.2V/12A out |
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