Performance Curves
Brick Dual
48Vin 3.3/1.8Vout 77W
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
1
Quarter
1.8V, I
out
(A)
400 LFM (2.0 m/s)
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
2
3
4
5
6
7
8
9
10 11 12 13 14 15
Semiconductor junction temperature is
within 1°C of surface temperature
3.3V, I
out
(A)
Figure 7:
Maximum output power derating curves at
55
°
C
vs. airflow
rates of 100 through 400 LFM. Curve shows available current for 1.8V
rail on y axis and available current for 3.3V rail on x axis. (nom. Vin)
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
1
Figure 8:
Thermal plot of converter at 15A load on 1.8V ouput and 15A
load on 3.3V output with
55
°
C
air flowing at 200 LFM. Air flow across
the converter is from pin 1 to pin 3 (nominal input voltage).
1.8V, I
out
(A)
400 LFM (2.0 m/s)
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
2
3
4
5
6
7
8
9
10 11 12 13 14 15
Semiconductor junction temperature is
within 1°C of surface temperature
3.3V, I
out
(A)
Figure 9:
Maximum output power derating curves at
70
°
C
vs. airflow
rates of 100 through 400 LFM. Curve shows available current for 1.8V
rail on y axis and available current for 3.3V rail on x axis. (nom. Vin)
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
1
Figure 10:
. Thermal plot of converter at 15A load on 1.8V ouput and
12.5A load on 3.3V output with
70
°
C
air flowing at 200 LFM. Air flow
across the converter is from pin 1 to pin 3 (nominal input voltage).
1.8V, I
out
(A)
400 LFM (2.0 m/s)
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Semiconductor junction temperature is
within 1°C of surface temperature
3.3V, I
out
(A)
Figure 11
:
Maximum output power derating curves at
85
°
C
vs. airflow
rates of 100 through 400 LFM. Curve shows available current for 1.8V
rail on y axis and available current for 3.3V rail on x axis. (nom. Vin)
Product # DQ63318QGL08
Phone 1-888-567-9596
Figure 12
:
Thermal plot of converter at 13A load on 1.8V ouput and
10A load on 3.3V output with
85
°
C
air flowing at 200 LFM. Air flow
across the converter is from pin 1 to pin 3 (nominal input voltage).
Doc.# 005-2DQ638D Rev. B
10/7/03
Page 6