PQ60240QGA05 Datasheet, PDF (5/13 Pages) SynQor Worldwide Headquarters – Quarter-brick DC/DC Converter

Technical Specification
Input: 35 - 75 V
Output: 24 V
Current: 5.0 A
Package: Quarter-brick
100
95
90
85
80
75
70
35 Vin
48 Vin
65
75 Vin
60
0
1
2
3
4
5
Load Current (A)
Figure 1: Efficiency at nominal output voltage vs. load current for
minimum, nominal, and maximum input voltage at 25°C.
12
95
93
91
89
25º C
87
40º C
55º C
85
100
200
300
400
Air Flow (LFM)
Figure 2: Efficiency at nominal output voltage and 60% rated power
vs. airflow rate for ambient air temperatures of 25°C, 40°C, and 55°C
(nominal input voltage).
8
10
7
8
6
4
35 Vin
2
48 Vin
75 Vin
0
0
1
2
3
4
5
Load Current (A)
Figure 3: Power dissipation at nominal output voltage vs. load current
for minimum, nominal, and maximum input voltage at 25°C.
6
5
25º C
40º C
55º C
4
100
200
300
400
Air Flow (LFM)
Figure 4: Power dissipation at nominal output voltage and 60% rated
power vs. airflow rate for ambient air temperatures of 25°C, 40°C, and
55°C (nominal input voltage).
6
5
4
3
2
400 LFM (2.0 m/s)
300 LFM (1.5 m/s)
1
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
0
25
40
55
70
85
Ambient Air Temperature (°C)
Figure 5: Maximum output power derating curves vs. ambient air tem-
perature for airflow rates of 100 LFM through 400 LFM with air flow-
ing across the converter from input to output (nominal input voltage).
Semiconductor junction temperature is
within 1°C of surface temperature
Figure 6: Thermal plot of converter at 5 amp load current (120W) with
55°C air flowing at the rate of 200 LFM. Air is flowing across the con-
verter from input to output (nominal input voltage).
Product # PQ60240QGA05
Phone [phone]
www.synqor.com
Doc.# 005-2-QGA624D Rev. B 10/01/08
Page 5