PQ60180HTA09 Datasheet, PDF (5/13 Pages) SynQor Worldwide Headquarters – Half-brick DC/DC Converter

Technical Specification
Input: 35-75 V
Output: 18 V
Current: 9.2 A (165W)
Package: Half-brick
100
95
90
85
80
75
70
36 Vin
65
48 Vin
75 Vin
60
0.0 0.9 1.8 2.8 3.7 4.6 5.5 6.4 7.4 8.3 9.2
Load Current (A)
Figure 1: Efficiency at nominal output voltage vs. load current for min-
imum, nominal, and maximum input voltage at 25°C.
18
16
14
12
10
8
6
4
36 Vin
48 Vin
2
75 Vin
0
0.0 0.9 1.8 2.8 3.7 4.6 5.5 6.4 7.4 8.3 9.2
Load Current (A)
Figure 3: Power dissipation at nominal output voltage vs. load current
for minimum, nominal, and maximum input voltage at 25°C.
94
93
92
91
90
89
88
87
86
0
25 C
40 C
55 C
100
200
300
400
500
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).
12.0
11.0
10.0
9.0
8.0
7.0
6.0
5.0
4.0
0
25 C
40 C
55 C
100
200
300
400
500
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).
10
9
8
7
6
5
4
3
400 LFM (2.0 m/s)
300 LFM (1.5 m/s)
2
200 LFM (1.0 m/s)
1
100 LFM (0.5 m/s)
0 LFM (0 m/s)
0
0
25
40
55
70
85
Ambient Air Temperature (^oC)
Figure 5: Maximum output power derating curves vs. ambient air tem-
perature for airflow rates of 0 LFM through 400 LFM with air flowing
from input to output (nominal input voltage).
Figure 6: Thermal plot of converter at 8.5 amp load current (153W)
with 55°C air flowing at the rate of 200 LFM. Air is flowing across the
converter from input to output (nominal input voltage).
Product # PQ60180HTA09
Phone [phone]
www.synqor.com
Doc.# 005-2HT681F Rev. B
11/2/04
Page 5