Performance Curves
Brick Dual
48Vin 5.0/3.3Vout 100W
90
89
88
87
11
10
Quarter
Power Dissipation (W)
9
8
7
6
5
4
3
5.0Vo,
3.3Vo,
5.0Vo,
3.3Vo,
5.0Vo,
3.3Vo,
35Vin
35Vin
48Vin
48Vin
75Vin
75Vin
Efficiency (%)
86
85
84
83
82
81
80
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
5.0Vo,
3.3Vo,
5.0Vo,
3.3Vo,
5.0Vo,
3.3Vo,
35Vin
35Vin
48Vin
48Vin
75Vin
75Vin
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Load Current (A)
Load Current (A)
Figure 1:
Efficiency vs. output current, from no load to full load on
each output voltage at minimum, nominal, and maximum input voltage
at 25
°
C. Output not under test is held constant at half load.
95
90
Figure 2:
Power dissipation vs. output current, from no load to full
load on each output voltage at minimum, nominal, and maximum input
voltage at 25
°
C. Output not under test is held constant at half load.
16
14
Power Dissipation (W)
12
10
8
6
4
2
0
35 Vin
48 Vin
75 Vin
Efficiency (%)
85
80
75
70
65
0
10
20
30
40
50
60
70
80
90
100
35 Vin
48 Vin
75 Vin
0
10
20
30
40
50
60
70
80
90
100
Total Output Power (W)
Total Output Power (W)
Figure 3:
Overall converter efficiency vs. output power from zero load
to full load at minimum, nominal, and maximum input voltage at 25
°
C.
Loads are split 50/50 and range from zero to full load.
90.0
89.5
89.0
Figure 4:
Overall converter power dissipation vs. output power from
zero load to full load at minimum, nominal, and maximum input voltage
at 25
°
C. Loads are split 50/50 and range from zero to full load.
10.0
9.5
Power Dissipation (W)
9.0
8.5
8.0
7.5
7.0
6.5
6.0
25 C
40 C
55 C
Efficiency (%)
88.5
88.0
87.5
87.0
86.5
86.0
0
50
100
150
200
250
300
350
400
25 C
40 C
55 C
0
50
100
150
200
250
300
350
400
Airflow (LFM)
Airflow (LFM)
Figure 5:
Overall converter efficiency at nominal output voltages and
60% rated power on each output rail vs. airflow rate for ambient tem-
peratures of 25
°
C, 40
°
C and 55
°
C (nominal input voltage).
Product # DQ65033QGL10
Phone 1-888-567-9596
Figure 6:
Overall converter power dissipation at nominal output volt-
ages and 60% rated power on each output rail vs. airflow rate for
ambient temperatures of 25
°
C, 40
°
C and 55
°
C (nominal input voltage).
Doc.# 005-2DQ653D Rev. C
9/14/04
Page 5
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