DFA20 查看數據表（PDF） - Power-One Inc.
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DFA20 Datasheet PDF : 4 Pages
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DFA20 SERIES – SINGLE OUTPUT
Typical Performance: (Tc=25°C, Vin=Nom VDC, Rated Load)
12 VOLT EFFICIENCY Vs. LOAD
85
LINE = 9VDC
80
LINE = 12VDC
75
12 VOLT EFFICIENCY Vs. LINE INPUT VOLTAGE
85
50% FULL LOAD
80
100% FULL LOAD
75
LINE = 18VDC
70
70
12 VOLT INPUT CURRENT Vs. LINE INPUT VOLTAGE
4
3
100% LOAD
2
50% LOAD
1
65
0 10 20 30 40 50 60 70 80 90 100
LOAD (%)
24 VOLT EFFICIENCY Vs. LOAD
90
LINE = 18VDC
85
80
LINE = 24VDC
75
70
LINE = 36VDC
65
0 10 20 30 40 50 60 70 80 90 100
LOAD (%)
48 VOLT EFFICIENCY Vs. LOAD
90
85
LINE = 36VDC
80
75
70
LINE = 48VDC
65
LINE = 72VDC
60
0 10 20 30 40 50 60 70 80 90 100
LOAD (%)
OUTPUT VOLTAGE Vs. OUTPUT LOAD
120
100
80
CURRENT LIMIT MODE >
60
40
20
0
0 20 40 60 80 100 120 140
OUTPUT LOAD (%)
65
9 10 11 12 13 14 15 16 17 18
LINE INPUT (VOLTS)
24 VOLT EFFICIENCY Vs. LINE INPUT VOLTAGE
90
100% FULL LOAD
85
50% FULL LOAD
80
75
0
0 2 4 6 8 10 12 14 16 18
LINE INPUT (VOLTS)
24 VOLT INPUT CURRENT Vs. LINE INPUT VOLTAGE
2.0
1.5
100% LOAD
1.0
50% LOAD
0.5
70
18 20 22 24 26 28 30 32 34 36
LINE INPUT (VOLTS)
48 VOLT EFFICIENCY Vs. LINE INPUT VOLTAGE
90
85
100% FULL LOAD
80
75
50% FULL LOAD
70
65
60
36 40 44 48 52 56 60 64 68 72
LINE INPUT (VOLTS)
0.0
0
5 10 15 20 25 30 35 40
LINE INPUT (VOLTS)
48 VOLT INPUT CURRENT Vs. LINE INPUT VOLTAGE
1.0
0.8
100% LOAD
0.6
0.4
50% LOAD
0.2
0.0
0 10 20 30 40 50 60 70 80
LINE INPUT (VOLTS)
NOTES ON USING THE CURVES
1) The input currents are for 20 watts of output power. For
±5 volt output models the current is approximately 15% less.
2) The efficiency curves are for 12 volt output models. To use for other models adjust as follows:
±5 volt models subtract approximately 3%.
±15volt models add approximately 1%.
For the Most Up-To-Date Information
www.power-one.com
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