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THERMAL CURVES
Figure 24: Temperature measurement location for openframe
version - The allowed maximum hot spot temperature is
defined at 122
.
℃
Figure 25: Temperature measurement location for heatspreader
version - The allowed maximum hot spot temperature is defined
at 109
℃
.
DS_H48SA12025_05052008
H48SA12025(Standard) Output Current vs. Ambient Temperature and Air Velocity
@Vin = 48V (Either Orientation)
Output Current (A)
25
20
Natural
Convection
15
100LFM
200LFM
10
300LFM
5
0
25
30
35
40
45
50
Figure 26: Output current vs. ambient temperature and air
velocity @ V
=48V, Vout=12V(Openframe Version, Either
in
Orientation).
H48SA12025(standard) Output Current vs. Ambient Temperature and Air Velocity
@Vin = 48V (Either Orientation,With Heatspreader)
Output Current (A)
25
20
Natural
Convection
15
100LFM
200LFM
10
300LFM
400LFM
5
500LFM
0
25
30
35
40
45
50
Figure 27: Output current vs. ambient temperature and air
velocity @ V
=48V, Vout=12V(Heatspreader version, Either
in
Orientation).
600LFM
500LFM
400LFM
55
60
65
70
75
80
Ambient Temperature
( ℃ )
600LFM
55
60
65
70
75
80
Ambient Temperature
(℃)
11
85
85
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