Datasheet

DS_E48SC12008_03192012
12
THERMAL CURVES
(WITHOUT HEAT SPREADER)
HOT SPOT 1
AIRFLOW
NTC RESISTOR
Figure 19: * Hot spot 1& NTC resistor temperature measured
points
E48SC12008(Standard) Output Current vs. Ambient Temperature and Air Velocity
@Vin = 48V (Transverse Orientation)
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
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 20: Output current vs. ambient temperature and air
velocity @Vin=48V(Transverse Orientation, airflow from Vin+ to
Vin-,without heat spreader)
THERMAL CURVES
(WITH HEAT SPREADER)
HOT SPOT 2
AIRFLOW
Figure 21: * Hot spot 2 temperature measured point
E48SC12008(Standard) Output Current vs. Ambient Temperature and Air Velocity
@Vin = 48V (Transverse Orientation; With Heatspreader)
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
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
Figure 22: Output current vs. ambient temperature and air velocity
@Vin=48V (Transverse Orientation, airflow from Vin+ to Vin-,with
heat spreader)