Input:
Outputs:
Current:
Package:
35-75V
5.0V & 3.3V
60W
Quarter-brick
Technical Specification
12
11
10
9
8
7
6
5
400 LFM
300 LFM
200 LFM
100 LFM
0 LFM
4
3
2
1
0
Semiconductor junction temperature is
within 1 C of surface temperature
0
25
40
55
70
85
°
Ambient Air Temperature (oC)
Figure 13: Maximum output power-derating curves vs. ambient air tem-
perature for airflow rates of 0 to 400 LFM, air flowing from pin 1 to pin
3. Full load (12A) on 5.0V output and no load on 3.3V output.
Figure 14: Thermal plot of converter at 12 amp load on 5.0V ouput and
no 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)
°
10
9
8
7
6
5
4
400 LFM
3
300 LFM
2
1
0
200 LFM
100 LFM
0 LFM
Semiconductor junction temperature is
within 1°C of surface temperature
0
25
40
55
70
85
Ambient Air Temperature (oC)
Figure 15: Max output power-derating curves vs. air temp for 0 to 400 LFM,
pin 1 to pin 3. 50% load (9A) on 3.3V output and 50% load (6A) on 5.0V output.
At derating points, 3.3V output decreases while 5.0V output remains unchanged.
Figure 16: Thermal plot of converter at 9 amp load on 3.3V ouput and
6 amp load on 5.0V output with 70 C air flowing at 200 LFM. Air flow
across the converter is from pin 1 to pin 3 (nominal input voltage)
°
13
12
11
10
9
8
7
6
5
400 LFM
4
300 LFM
3
200 LFM
2
100 LFM
1
0 LFM
0
Semiconductor junction temperature is
within 1°C of surface temperature
0
25
40
55
70
85
Ambient Air Temperature (oC)
Figure 17: Max output power derating curves vs. air temp for 0 to 400 LFM, pin
1 to pin 3. 70% load (12.7A) on 3.3V output and 30% load (3.6A) on 5.0V output.
At derating points, 3.3V output decreases while 5.0V output remains unchanged.
Figure 18: Thermal plot of converter at 12.7 amp load on 3.3V ouput
and 3.6 amp load on 5.0V output with 55 C air flowing at 200 LFM. Air
flow across the converter is from pin 1 to pin 3 (nominal input voltage).
°
Product # DQ65033QMA06
Phone 1-888-567-9596
Doc.# 005-2DQ653E Rev. H
7/7/04
Page 7