E48SP Datasheet, PDF (10/15 Pages) Delta Electronics, Inc. – 48V in, 12V/20A out

THERMAL CURVES
(WITHOUT HEAT SPREADER)
THERMAL CURVES
(WITH HEAT SPREADER)
Figure 18: Temperature measurement location
* The allowed maximum hot spot temperature is defined at 122
E48SP12020(Standard) Output Current vs. Ambient Temperature and Air Velocity
Output Current (A)
@Vin = 48V (Transverse Orientation)
20
18
Natural
16
Convection
14
100LFM
12
200LFM
10
300LFM
8
400LFM
6
500LFM
4
600LFM
2
0
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature ( )
Figure 19: Output current vs. ambient temperature and air
velocity @Vin=48V(Transverse Orientation, without heat
spreader)
Figure 20: Temperature measurement location
* The allowed maximum hot spot temperature is defined at 110
E48SP12020(Standard) Output Current vs. Ambient Temperature and Air Velocity
Output Current (A)
@Vin = 48V (Transverse Orientation,With Heatspreader)
20
18
Natural
Convection
16
100LFM
14
200LFM
12
300LFM
10
400LFM
8
6
500LFM
4
600LFM
2
0
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature ( )
Figure 21: Output current vs. ambient temperature and air velocity
@Vin=48V(Transverse Orientation, with heat spreader)
10
DS_E48SP12020_08022010