PQ60525HTA04 Datasheet, PDF (5/14 Pages) SynQor Worldwide Headquarters – Half-brick DC/DC Converter

Technical Specification
Input: 35-75 V
Output: 52.5 V
Current: 3.8 A (200W)
Package: Half-brick
100
95
90
85
80
75
35 Vin
70
48 Vin
75 Vin
65
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
Load Current (A)
Figure 1: Efficiency at nominal output voltage vs. load current for min-
imum, 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).
20
18
16
14
12
10
8
6
35 Vin
4
48 Vin
2
75 Vin
0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
Load Current (A)
Figure 3: Power dissipation at nominal output voltage vs. load current
for minimum, nominal, and maximum input voltage at 25°C.
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).
4.0
3.5
3.0
2.5
2.0
1.5
400 LFM (2.0 m/s)
1.0
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
0.5
100 LFM (0.5 m/s)
50 LFM (0.25 m/s)
0.0
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 50 LFM through 400 LFM with air flowing
from input to output (nominal input voltage).
Figure 6: Thermal plot of converter at 3.4 amp load current (179W)
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 # PQ60525HTA04
Phone [phone]
www.synqor.com
Doc.# 005-2HT652F Rev. B
03/08/04
Page 5