PQ60120QTA12 Datasheet, PDF (5/13 Pages) SynQor Worldwide Headquarters – Quarter-brick DC/DC Converter

Technical Specification
Input: 35-75 V
Output: 12 V
Current: 12 A
Package: Quarter-brick
100
95
90
85
80
75
35 Vin
70
48 Vin
75 Vin
65
0.0 1.2 2.4 3.6 4.8 6.0 7.2 8.4 9.6 10.8 12.0
Load Current (A)
Figure 1: Efficiency at nominal output voltage vs. load current for min-
imum, nominal, and maximum input voltage at 25°C.
16
14
12
10
8
6
4
2
0
0
35 Vin
48 Vin
75 Vin
2
5
7
10
12
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
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).
9
8
7
6
5
25 C
4
40 C
55 C
3
0
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).
12
11
10
9
8
7
6
5
4
400 LFM (2.0 m/s)
3
300 LFM (1.5 m/s)
2
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
1
0 LFM (0 m/s)
0
0
25
40
55
70
85
Ambient Air Temperature (^oC)
Semiconductor junction temperature is
within 1°C of surface temperature
Figure 5: Maximum output power derating curves vs. ambient air tem-
perature for airflow rates of 0 LFM through 400 LFM with air flowing
across the converter from input to output (nominal input voltage).
Figure 6: Thermal plot of converter at 11.2 amp load current (134W)
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 # PQ60120QTA12
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www.synqor.com
Doc.# 005-2QT612C Rev. A 10/4/04
Page 5