DS_Q48SK12025_08232011
10
THERMAL CURVES
(WITH HEAT SPREADER)
Figure 20: Temperature measurement location
* The allowed maximum hot spot temperature is defined at 112
℃
Q48SK12025(Standard) Output Current vs. Ambient Temperature and Air Velocity
@Vin = 48V (Transverse 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
200LFM
300LFM
400LFM
500LFM
600LFM
Figure 21: Output current vs. ambient temperature and air
velocity @Vin=48V(Transverse Orientation, with heat spreader)
THERMAL CURVES
(WITHOUT HEAT SPREADER)
Figure 18: Temperature measurement location
* The allowed maximum hot spot temperature is defined at 118
℃
Q48SK12025(Standard) Output Current vs. Ambient Temperature and Air Velocity
@Vin = 48V (Transverse Orientation)
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
200LFM
300LFM
400LFM
500LFM
600LFM
Figure 19: Output current vs. ambient temperature and air
velocity @Vin=48V(Transverse Orientation, without heat
spreader)
