PQ60280HZX22 Datasheet, PDF (7/16 Pages) SynQor Worldwide Headquarters – High efficiency, 94% at full rated load current

Technical Figures
Input: 35-75V
Output: 28V
Current: 21.5A
Package: Half-brick
100
95
90
85
80
75
70
35 Vin
65
48 Vin
75 Vin
60
0
3
6
9
12
15
18
21
Load Current (A)
Figure 1: Efficiency at nominal output voltage vs. load current for minimum,
nominal, and maximum input voltage at 25°C.
60
50
40
30
20
35 Vin
10
48 Vin
75 Vin
0
0
3
6
9
12
15
18
21
Load Current (A)
Figure 3: Power Dissipation at nominal output voltage vs. load current for
minimum, nominal, and maximum input voltage at 25°C.
100
95
90
85
80
75
70
25º C
40º C
65
55º C
60
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).
60
50
40
30
20
25º C
10
40º C
55º C
0
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).
21
18
15
12
9
400LFM(2.0m /s)
6
300LFM(1.5m /s)
200LFM(1.0m /s)
3
100LFM(0.5 m/S)
0
25
40
55
70
85
Ambient Air Temperature(°C)
Semiconductor junction temperature is
within 1°C of surface temperature
Figure 5: Thermal Derating (max output current vs. ambient air temperature)
for airflow rates of 100 LFM through 400 LFM with air flowing from pin 4 to pin
1 (nominal input voltage).
Figure 6: Thermal Image of converter at 11.7 amp load current (327.6W) with
55°C air flowing at the rate of 200 LFM. Air is flowing from pin 3 to pin 1
(nominal input voltage).
Product # PQ60280HZx22
Phone [phone]
www.synqor.com
Doc.# 005-0005788 Rev. D
12/26/13
Page 7