Q54SG Datasheet, PDF (23/26 Pages) Delta Electronics, Inc. – Industry standard, DOSA compliant pin out

THERMAL CURVES
(WITH HEAT SPREADER)
THERMAL CURVES
(WITH 0.5” HEIGHT HEAT SINK)
AIRFLOW
Figure 23: * Hot spot 1 temperature measured point. the
allowed maximum hot spot temperature is defined at 102℃
AIRFLOW
Figure 24: * Hot spot 2 temperature measured point. the
allowed maximum hot spot temperature is defined at 90℃
Q54SG12050(Standard) Output Current vs. Ambient Temperature and Air Velocity
Output Current (A)
@Vin = 48V (Transverse Orientation,With Heat Spreader)
50
600LFM
45
500LFM
40
400LFM
35
30
Natural
Convection
25
20
100LFM
15
200LFM
10
5
300LFM
0
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature (℃)
Figure 25 Output power vs. ambient temperature and air velocity
@Vin=48V(Transverse Orientation, airflow from Vin- to Vin+,
with heat spreader)
Q54SG12050(Standard) Output Current vs. Ambient Temperature and Air Velocity
Output Current (A)
@Vin = 48V (Transverse Orientation,With 0.5" Height Heatsink)
50
600LFM
45
500LFM
400LFM
40
35
30
Natural
Convection
25
20
100LFM
15
200LFM
10
300LFM
5
0
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature (℃)
Figure 26: Output power vs. ambient temperature and air
velocity @Vin=48V(Transverse Orientation, airflow from Vin- to
Vin+, with 0.5” height heat sink)
Q54SG12050(Standard) Output Current vs. Ambient Temperature and Air Velocity
Output Current (A)
@Vin = 54V (Transverse Orientation,With Heat Spreader)
50
600LFM
45
500LFM
40
400LFM
35
30
Natural
Convection
25
20
100LFM
15
200LFM
10
300LFM
5
0
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature (℃)
Figure 27: Output power vs. ambient temperature and air
velocity @Vin=54V(Transverse Orientation, airflow from Vin- to
Vin+, with heat spreader)
Q54SG12050(Standard) Output Current vs. Ambient Temperature and Air Velocity
Output Current (A)
@Vin = 54V (Transverse Orientation,With 0.5" Height Heatsink)
50
600LFM
500LFM
45
400LFM
40
35
30
Natural
Convection
25
20
100LFM
15
200LFM
10
300LFM
5
0
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature (℃)
Figure 28: Output power vs. ambient temperature and air velocity
@Vin=54V(Transverse Orientation, airflow from Vin- to Vin+, with
0.5” height heat sink)
23
DS_Q54SG12050_09092016