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參數(shù)資料
| 型號： | PQ48050HKA20PYS |
| 廠商： | SYNQOR INC |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| 文件頁數(shù)： | 10/14頁 |
| 文件大?。?/td> | 792K |
| 代理商： | PQ48050HKA20PYS |
60
65
70
75
80
85
90
95
100
0
2
4
6
8
1012
1416
1820
Load Current (A)
Efficiency
(%)
36 Vin
48 Vin
75 Vin
Product # PQ48050HKA20
Phone 1-888-567-9596
Doc.# 005-2HK450G Rev. C
4/9/03
Page 5
88
89
90
91
92
93
94
0
100
200
300
400
500
Air Flow (LFM)
Efficiency
(
%
)
25 C
40 C
55 C
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).
0
2
4
6
8
10
12
14
0
2
4
6
8
1012
1416
1820
Load Current (A)
Power
Dissipation
(W)
36 Vin
48 Vin
75 Vin
Figure 3: Power dissipation at nominal output voltage vs. load current
for minimum, nominal, and maximum input voltage at 25°C.
4.0
5.0
6.0
7.0
8.0
9.0
10.0
11.0
12.0
0
100
200
300
400
500
Air Flow (LFM)
Power
Dissipation
(
W
)
25 C
40 C
55 C
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).
0
2
4
6
8
10
12
14
16
18
20
0
2540
5570
85
Ambient Air Temperature (oC)
Iout
(A)
400 LFM (2.0 m/s)
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
0 LFM (0 m/s)
Figure 5: Maximum output power derating curves vs. ambient air tem-
perature for airflow rates of 0 LFM through 400 LFM with air flowing
from input to output (nominal input voltage).
Figure 6: Thermal plot of converter at 20 amp load current with 55°C
air flowing at the rate of 200 LFM. Air is flowing across the converter
from input to output (nominal input voltage).
Half
Brick
Performance Curves
48Vin 5.0Vout 20A
Figure 1: Efficiency at nominal output voltage vs. load current for min-
imum, nominal, and maximum input voltage at 25°C.
Semiconductor
junction
temperature
is
within
1
°C
of
sur
face
temperature
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