H48SA12025NNFA Datasheet, PDF (11/14 Pages) Delta Electronics, Inc. – Delphi Series H48SA, Half Brick Family DC/DC Power Modules: 48V in, 12V/25A out

THERMAL CURVES
H48SA12025(Standard) Output Current vs. Ambient Temperature and Air Velocity
Output Current (A)
@Vin = 48V (Either Orientation)
25
600LFM
500LFM
20
Natural
Convection
15
100LFM
10
200LFM
300LFM
5
400LFM
0
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature
(℃)
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
Output Current (A)
@Vin = 48V (Either Orientation,With Heatspreader)
25
Figure 25: Temperature measurement location for heatspreader
version - The allowed maximum hot spot temperature is defined
at 109℃.
20
Natural
Convection
15
100LFM
200LFM
10
300LFM
400LFM
5
500LFM
600LFM
0
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature
(℃)
Figure 27: Output current vs. ambient temperature and air
velocity @ V_in=48V, Vout=12V(Heatspreader version, Either
Orientation).
11
DS_H48SA12025_05112009