Input:
Output:
Current:
Package:
35-75 V
5.0 V
15 A
Eighth-brick
Technical Specification
95
90
85
80
75
70
65
60
92
91
90
89
88
87
86
85
84
25 C
40 C
55 C
35 Vin
48 Vin
75 Vin
0
100
200
300
400
500
0.0
1.5
3.0
4.5
6.0
7.5
9.0
10.5 12.0 13.5 15.0
Air Flow (LFM)
Load Current (A)
Figure 1: Efficiency at nominal output voltage vs. load current for min-
Figure 2: Efficiency at nominal output voltage and 60% rated power vs.
imum, nominal, and maximum input voltage at 25
°C.
airflow rate for ambient air temperatures of 25
(nominal input voltage).
°C, 40°C, and 55°C
12
11
10
9
8
7
6
5
4
3
8
7
6
5
4
3
2
1
0
25 C
40 C
55 C
35 Vin
48 Vin
75 Vin
2
1
0
0.0
1.5
3.0
4.5
6.0
7.5
9.0
10.5 12.0 13.5 15.0
0
100
200
300
400
500
Load Current (A)
Air Flow (LFM)
Figure 3: Power dissipation at nominal output voltage vs. load current
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).
for minimum, nominal, and maximum input voltage at 25
°C.
°
°
°
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
400 LFM (2.0 m/s)
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
50 LFM (0.25 m/s)
Semiconductor junction temperature is
within 1 C of surface temperature
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
across the converter from pin 3 to pin 1 (nominal input voltage).
Figure 6: Thermal plot of converter at 14.5 amp load current (73W)
with 55 C air flowing at the rate of 200 LFM. Air is flowing across the
converter from pin 3 to pin 1 (nominal input voltage).
°
Product # PQ60050EGL15
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-2EG650D Rev. C
11/8/04
Page 5
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