Thermal curves, 48v, v, 8v ) – Delta Electronics Q48SR User Manual
Page 12: 5v ), 3v )
Q48SR3R350(Standard) Output Current vs. Ambient Temperature and Air Velocity
@ Vin = 48V, Vout = 1.8V (Transverse Orientation)
0
5
10
15
20
25
30
35
40
45
50
55
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature ( )
Output Current(A)
Natural
Convection
100LFM
200LFM
300LFM
600LFM
500LFM
400LFM
Figure 27:
Output current vs. ambient temperature and air
velocity (V
in
=48V, V
out
=1.8V )
Q48SR3R350(Standard) Output Current vs. Ambient Temperature and Air Velocity
@ Vin = 48V, Vout = 2.5V (Transverse Orientation)
0
5
10
15
20
25
30
35
40
45
50
55
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature ( )
Output Current(A)
Natural
Convection
100LFM
200LFM
300LFM
600LFM
500LFM
400LFM
Figure 26:
Output current vs. ambient temperature and air
velocity (V
in
=48V, V
out
=2.5V )
Figure 25:
Output current vs. ambient temperature and air
velocity (V
in
=48V, V
out
=3.3V )
Q48SR3R350(Standard) Output Current vs. Ambient Temperature and Air Velocity
@ Vin = 48V, Vo = 3.3V (Tranverse Orientation)
0
5
10
15
20
25
30
35
40
45
50
55
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature ( )
Output Current(A)
Natural
Convection
100LFM
200LFM
300LFM
600LFM
500LFM
400LFM
THERMAL CURVES
Figure 24:
Hot spot location
The allowed maximum hot spot temperature is defined at 120
and 80% load.
12