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