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參數(shù)資料
| 型號(hào)： | PQ48050HMA25PYF |
| 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(yè)數(shù)： | 11/14頁(yè) |
| 文件大小： | 787K |
| 代理商： | PQ48050HMA25PYF |
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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
from output to input (nominal input voltage).
Product # PQ48050HMA25
Phone 1-888-567-9596
Doc.# 005-2HM450B Rev. C
4/9/03
Page 6
Figure 8: 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 output to input (nominal input voltage).
Figure 9: Turn-on transient at full load (resistive load) (10 ms/div).
Top Trace: Vout (2V/div)
Bottom Trace: ON/OFF input (5V/div)
Figure 10: Turn-on transient at zero load (10 ms/div).
Top Trace: Vout (2V/div)
Bottom Trace: ON/OFF input (5V/div)
Figure 11: Output voltage response to step-change in load current (50%-75%-50%
of Iout(max); dI/dt = 0.1A/s). Load cap: 15F, 450 m
ESR tantalum capacitor and
1F ceramic capacitor. Top trace: Vout (200mV/div), Bottom trace: Iout (10A/div).
Figure 12: Output voltage response to step-change in load current (50%-75%-50%
of Iout(max): dI/dt = 5A/s). Load cap: 480F, 15 m
ESR tantalum capacitor and
1F ceramic capacitor. Top trace: Vout (200mV/div), Bottom trace: Iout (10A/div).
Half
Brick
Performance Curves
48Vin 5.0Vout 25A
Semiconductor
junction
temperature
is
within
1
°C
of
sur
face
temperature
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