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參數(shù)資料
| 型號： | PQ48025QNA25PYS |
| 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)： | 9/13頁 |
| 文件大?。?/td> | 722K |
| 代理商： | PQ48025QNA25PYS |
Product # PQ48025QNA25
Phone 1-888-567-9596
Doc.# 005-2QN425D_B
9/5/01
Page 5
Performance Curves
48Vin 2.5Vout 25A
Quarter
Brick
0
5
10
15
20
25
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 7: Maximum output power-derating curves vs. ambient air tem-
perature for airflow rates of 0 LFM through 400 LFM with air flowing
lengthwise from output to input (nominal input voltage).
Figure 8: Thermal plot of converter at 24.3 amp load current with 55°C
air flowing at the rate of 200 LFM. Air is flowing across the converter
in the long direction input to output (nominal input voltage).
Figure 9: Turn-on transient at full rated load current (resistive load) (2
ms/div)
Top Trace: Vout; 1V/div
Bottom Trace: ON/OFF input; 5V/div
Figure 10: Turn-on transient at zero load current (2 ms/div).
Top Trace: Vout; 1V/div
Bottom Trace: ON/OFF input; 5V/div
Figure 11: Output voltage response to step-change in load current (50%-75%-50%
of Imax; dI/dt = 0.1A/s). Load cap: 10F, 100 m
ESR tantalum capacitor and 1F
ceramic capacitor. Top trace: Vout (100mV/div), Bottom trace: Iout (5A/div).
Figure 12: Output voltage response to step-change in load current (50%-75%-50%
of Imax: dI/dt = 5A/s). Load cap: 470F, 30 m
ESR tantalum capacitor and 1F
ceramic capacitor. Top trace: Vout (100mV/div), Bottom trace: Iout (5A/div).
Semiconductor junction temperature is
within 2
°C of surface temperature
Vin = 48V
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