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參數(shù)資料
| 型號： | FHS18Z28NT |
| 廠商： | POWER-ONE INC |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT 500 W DC-DC REG PWR SUPPLY MODULE |
| 文件頁數(shù)： | 7/11頁 |
| 文件大?。?/td> | 742K |
| 代理商： | FHS18Z28NT |
REV. JUN 09, 2004
Page 5 of 11
FHS DC-DC Series Data Sheet
500-Watt, Full-Brick Converter
Efficiency Characteristics
FHS18Z28. EFF. VS. LOAD
40
45
50
55
60
65
70
75
80
85
90
95
100
10
20
30
40
50
60
70
80
90
100
LOAD %
E
FFI
C
IE
N
C
Y
%
EFF.(36V)
EFF.(48V)
EFF.(75V)
Figure 1. FHS18Z28 Efficiency vs. Output Load
Input Turn-On / Off Operation
Input Current vs. Voltage
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
0
102030
4050607080
Input Voltage (V)
Input
C
u
rr
ent
(
A
)
Turn On
Voltage
Threshold
Turn Off
Voltage
Threshold
Figure 2. FHS18Z28 Input UVLO Characteristics
Turn-on Waveform
Figure 3. Output Voltage turn-on FHS18Z28
Conditions: Vin=48V, Load: full, , Co=none
(Note: monotonic rise characteristic)
Short Circuit Operation
Figure 4. Output Current with Shorted Output Pins,
Vin = 75Vdc, Scale is 20Amp/Div.
(Actual amplitude: 10.8ARMS)
Once the output current is brought back into its
specified range, the converter automatically exits
the hiccup mode and continues normal operation.
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