PQ60012EGL25 Datasheet, PDF (5/13 Pages) SynQor Worldwide Headquarters – Input under-voltage lockout disables converter at low input voltage conditions

Technical Specification
Input: 35-75 V
Output: 1.2 V
Current: 25 A
Package: Eighth-brick
95
90
85
80
75
70
35 Vin
65
48 Vin
75 Vin
60
0.0 2.5 5.0 7.5 10.0 12.5 15.0 17.5 20.0 22.5 25.0
Load Current (A)
Figure 1: Efficiency at nominal output voltage vs. load current for min-
imum, nominal, and maximum input voltage at 25°C.
88
87
86
85
84
83
82
81
80
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).
8
7
6
5
4
3
2
35 Vin
1
48 Vin
75 Vin
0
0
3
5
8 10 13 15 18 20 23 25
Load Current (A)
Figure 3: Power dissipation at nominal output voltage vs. load current
for minimum, nominal, and maximum input voltage at 25°C.
5.0
4.0
3.0
2.0
1.0
0.0
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).
26
24
22
20
18
16
14
12
10
8
400 LFM (2.0 m/s)
6
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
4
100 LFM (0.5 m/s)
2
50 LFM (0.25 m/s)
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
across the converter from pin 3 to pin 1 (nominal input voltage).
Semiconductor junction temperature is
within 1°C of surface temperature
Figure 6: Thermal plot of converter at 25 amp load current with 55°C
air flowing at the rate of 200 LFM. Air is flowing across the converter
sideways from pin 3 to pin 1 (nominal input voltage).
Product # PQ60012EGL25
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www.synqor.com
Doc.# 005-2EG621D Rev. D 04/08/10
Page 5