PQ60033EGX20 Datasheet, PDF (5/13 Pages) SynQor Worldwide Headquarters – Fixed frequency switching provides predictable EMI performance

Technical Specification
Input: 35-75 V
Output: 3.3 V
Current: 20 A
Package: Eighth-brick
95
90
85
80
75
70
35 Vin
65
48 Vin
75 Vin
60
0
2
4
6
8 10 12 14 16 18 20
Load Current (A)
Figure 1: Efficiency at nominal output voltage vs. load current for minimum,
nominal, and maximum input voltage at 25°C.
11
10
9
8
7
6
5
4
3
35 Vin
2
48 Vin
1
75 Vin
0
0
2
4
6
8 10 12 14 16 18 20
Load Current (A)
Figure 3: Power dissipation at nominal output voltage vs. load current for
minimum, nominal, and maximum input voltage at 25°C.
92
91
90
89
88
87
86
85
84
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).
92
91
90
89
88
87
86
85
84
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).
20
18
16
14
12
10
8
400 LFM (2.0 m/s)
6
300 LFM (1.5 m/s)
4
200 LFM (1.0 m/s)
2
100 LFM (0.5 m/s)
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 temperature
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 19 amp load current (63W) 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 # PQ60033EGx20
Phone [phone]
www.synqor.com
Doc.# 005-0005349 Rev. A
09/23/09
Page 5