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參數(shù)資料
| 型號： | PQ48120QNA25PKS |
| 廠商： | SYNQOR INC |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT 100 W DC-DC REG PWR SUPPLY MODULE |
| 封裝： | QUARTER-BRICK PACKAGE-8 |
| 文件頁數(shù)： | 8/13頁 |
| 文件大小： | 706K |
| 代理商： | PQ48120QNA25PKS |
Product # PQ48120QNA08
Phone 1-888-567-9596
Doc.# 005-2QN412D_C
9/04/01
Page 4
Performance Curves
48Vin 12Vout 8.3A
Quarter
Brick
60
65
70
75
80
85
90
95
0.0
0.8
1.7
2.5
3.3
4.2
5.0
5.8
6.7
7.5
8.3
Load Current (A)
Efficiency
(%)
36 Vin
48 Vin
75 Vin
Figure 1: Efficiency vs. load current for minimum, nominal, and
maximum input voltage at 25°C.
82
83
84
85
86
87
88
89
90
0
100
200
300
400
500
Air Flow (LFM)
Efficiency
(
%
)
25 C
40 C
55 C
Figure 2: Efficiency at 60% rated power vs. airflow rate for ambient
air temperatures of 25°C, 40°C, and 55°C and nominal input voltage.
0
2
4
6
8
10
12
14
16
0.0
0.8
1.7
2.5
3.3
4.2
5.0
5.8
6.7
7.5
8.3
Load Current (A)
Power
Dissipation
(W)
36 Vin
48 Vin
75 Vin
Figure 3: Power dissipation vs. load current for minimum, nominal,
and maximum input voltage at 25°C.
5.0
5.5
6.0
6.5
7.0
7.5
8.0
8.5
9.0
9.5
10.0
0
100
200
300
400
500
Air Flow (LFM)
Power
Dissipation
(
W
)
25 C
40 C
55 C
Figure 4: Power dissipation at 60% rated power vs. airflow rate for
ambient air temperatures of 25°C, 40°C, and 55°C and nominal input
voltage.
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
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
across the converter from pin 1 to pin 3 (nominal input voltage).
Figure 6: Thermal plot of converter at 6.6 amp load current with 55°C
air flowing at the rate of 200 LFM. Air is flowing across the converter
sideways from pin 1 to pin 3 (nominal input voltage).
Vin = 48V
Semiconductor junction temperature is
within 2
°C of surface temperature
Vin = 48V
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