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參數(shù)資料
| 型號(hào)： | SQE48T40025-NDB0 |
| 廠商： | POWER-ONE 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, ONE-EIGHTH BRICK PACKAGE-8 |
| 文件頁數(shù)： | 4/13頁 |
| 文件大小： | 764K |
| 代理商： | SQE48T40025-NDB0 |
SQE48T40025 DC-DC Converter
36-75 VDC Input; 2.5 VDC @ 40 A Output
Preliminary Data Sheet
Figure 10. Output voltage ripple (20 mV/div.) at full rated load
current into a resistive load with Co = 10 F tantalum + 1 F
ceramic and Vin = 48 V. Time scale: 1 s/div.
Vout
Vsource
iS
iC
1
F
ceramic
capacitor
10
H
source
inductance
DC-DC
Converter
33
F
ESR < 1
electrolytic
capacitor
SQE48
Figure 11. Test setup for measuring input reflected ripple
currents, ic and is.
Figure 12. Input reflected-ripple current, is (10 mA/div.),
measured through 10 H at the source at full rated load
current and Vin = 48 V. Refer to Figure 11 for test setup. Time
scale: 1 s/div.
Figure 13. Input reflected ripple-current, ic (100 mA/div.),
measured at input terminals at full rated load current and Vin
= 48 V. Refer to Figure 11 for test setup. Time scale: 1 s/div.
Figure 14. Output voltage vs. load current showing current
limit point and converter shutdown point. Input voltage has
almost no effect on current limit characteristic.
Figure 15. Load current (top trace, 50 A/div., 50 ms/div.) into
a 10 m short circuit during restart, at Vin = 48 V. Bottom
trace (50 A/div., 1 ms/div.) is an expansion of the on-time
portion of the top trace.
ZD-01723 Rev 1.1
www.power-one.com
Page 12 of 13
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