PQ60280FTA26 Datasheet, PDF (6/14 Pages) SynQor Worldwide Headquarters – Full-brick DC/DC Converter

Technical Specification
Input: 36-75 V
Output: 28 V
Current: 26 A
Package: Full-brick
100
98
96
94
92
90
88
36 Vin
48 Vin
86
75 Vin
84
0
3
5
8
10 13 16 18 21 23 26
Load Current (A)
Figure 1: Efficiency at nominal output voltage vs. load current for min-
imum, nominal, and maximum input voltage at 25°C.
50
45
40
35
30
25
20
15
36 Vin
10
48 Vin
5
75 Vin
0
0
3
5
8
10 13 16 18 21 23 26
Load Current (A)
Figure 3: Power dissipation at nominal output voltage vs. load current
for minimum, nominal, and maximum input voltage at 25°C.
25
100
98
96
94
92
90
88
86
25 ºC
84
40 ºC
82
55 ºC
80
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).
32
30
28
26
24
22
20
18
16
14
100
200
300
Air Flow (LFM)
25 ºC
40 ºC
55 ºC
400
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).
20
15
10
400 LFM (2.0 m/s)
5
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
0
0
25
40
55
70
85
Ambient Air Temperature (ºC)
Figure 5: Maximum output power derating curves vs. ambient air tempera-
ture for airflow rates of 100 LFM through 400 LFM with air flowing from pin
1 to pin 2 (nominal input voltage). See Figure 21 for baseplate derating curve.
Semiconductor junction temperature is
within 1°C of surface temperature
Figure 6: Thermal plot of converter at 14.7 amp load current (411.6W)
with 55°C air flowing at the rate of 200 LFM. Air is flowing from pin 1
to pin 2 (nominal input voltage).
Product # PQ60280FTA26
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www.synqor.com
Doc.# 005-2FT628P Rev. C
5/21/08
Page 6