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參數資料
| 型號： | PQ40050QGA20NNS-G |
| 廠商： | SYNQOR INC |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| 封裝： | ROHS COMPLIANT PACKAGE-8 |
| 文件頁數： | 10/14頁 |
| 文件大小： | 633K |
| 代理商： | PQ40050QGA20NNS-G |
Product # PQ40050QGA20
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-2QG350D Rev. A
11/8/04
Page 5
Input:
Output:
Current:
P
Package:
ackage:
18-75 V
5.0 V
20 A
Quarter-brick
T
Technical S
echnical Specification
pecification
60
65
70
75
80
85
90
95
0
2
4
6
8
1012
1416
1820
Load Current (A)
Efficiency
(%)
24 Vin
48 Vin
75 Vin
Figure 1: Efficiency at nominal output voltage vs. load current for 24V,
48V and 75V input at 25°C.
85
86
87
88
89
90
91
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
16
0
2
4
6
8
10
12
14
16
18
20
Load Current (A)
Power
Dissipation
(W)
24 Vin
48 Vin
75 Vin
Figure 3: Power dissipation at nominal output voltage vs. load current
for 24V, 48V and 75V input at 25°C.
5
6
7
8
9
10
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)
50 LFM (0.25 m/s)
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 (24V input).
Figure 6: Thermal plot of converter at 19 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 (24V input).
Semiconductor junction temperature is
within 1
°C of surface temperature
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