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參數(shù)資料
| 型號： | SHM48T40010-PBC0 |
| 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 |
| 文件頁數(shù)： | 3/37頁 |
| 文件大?。?/td> | 697K |
| 代理商： | SHM48T40010-PBC0 |
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SHM48 Series - 40A
Data Sheet
SHM48T40 Family DS Ver 2 03-24-03
USA Toll Free 866 WOW-didt
Page 11 of 37
SHM48T40033 (3.3 Volts Out)
Vout
Vsource
i
S
i
C
1
F
ceramic
capacitor
10
H
source
inductance
DC/DC
Converter
33
F
ESR <1
electrolytic
capacitor
SemiHTMFamily
Fig. 3.3V.11: Test Set-up for measuring input reflected ripple currents,
ic and is.
Fig. 3.3V12: 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 Fig. 3.3V.11 for test setup. Time
scale: 1
s/div.
Iout [Adc]
15
60
4.0
V
out
[
V
dc
]
0
2.0
1.0
30
45
3.0
Fig. 3.3V.13: Output voltage vs. load current showing current
limit point and converter shutdown point. Input voltage has al-
most no effect on current limit characteristic.
Fig. 3.3V14: Input reflected ripple current,
ic (100 mA/div),
measured at input terminals at full rated load current and Vin =
48 V. Refer to Fig. 3.3V.11 for test setup. Time scale: 1
s/div.
Fig. 3.3V.15: Load current (top trace, 20 A/div, 20 ms/div) into
a 10 m
short circuit during restart, at Vin = 48 V. Bottom trace
(20 A/div, 1 ms/div) is an expansion of the on-time portion of
the top trace.
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