DFA20 SERIES – DUAL OUTPUT
Typical Performance: (Tc=25°C, Vin=Nom VDC, Rated Load)
12 VOLT EFFICIENCY Vs. LOAD
85
LINE = 9VDC
12 VOLT EFFICIENCY Vs. LINE INPUT VOLTAGE
85
12 VOLT INPUT CURRENT Vs. LINE INPUT VOLTAGE
3.5
INPUT CURRENT (AMPS)
50% FULL LOAD
3.0
2.5
2.0
1.5
50% LOAD
1.0
0.5
0.0
0
2
4
6
8
10
12
14
16
18
100% LOAD
EFFICIENCY (%)
80
EFFICIENCY (%)
LINE = 12VDC
80
100% FULL LOAD
75
75
LINE = 18VDC
70
0
10
20
30
40
50
60
70
80
90 100
70
9
10
11
12
13
14
15
16
17
18
LOAD (%)
24 VOLT EFFICIENCY Vs. LOAD
90
LINE INPUT (VOLTS)
24 VOLT EFFICIENCY Vs. LINE INPUT VOLTAGE
90
LINE INPUT (VOLTS)
24 VOLT INPUT CURRENT Vs. LINE INPUT VOLTAGE
2.0
EFFICIENCY (%)
LINE = 18VDC
EFFICIENCY (%)
85
INPUT CURRENT (AMPS)
85
100% FULL LOAD
1.5
100% LOAD
80
LINE = 24VDC
75
LINE = 36VDC
0
10
20
30
40
50
60
70
80
90 100
1.0
50% FULL LOAD
80
0.5
50% LOAD
70
75
18
0.0
20
22
24
26
28
30
32
34
36
0
4
8
12
16
20
24
28
32
36
LOAD (%)
48 VOLT EFFICIENCY Vs. LOAD
90
LINE INPUT (VOLTS)
48 VOLT EFFICIENCY Vs. LINE INPUT VOLTAGE
90
100% FULL LOAD
LINE INPUT (VOLTS)
48 VOLT INPUT CURRENT Vs. LINE INPUT VOLTAGE
1.00
EFFICIENCY (%)
80
LINE = 36VDC
EFFICIENCY (%)
85
INPUT CURRENT (AMPS)
0.75
100% LOAD
80
50% FULL LOAD
75
0.50
75
LINE = 48VDC
0.25
50% LOAD
60
0
LINE = 72VDC
10
20
30
40
50
60
70
80
90 100
70
36
40
44
48
52
56
60
64
68
72
0.00
0
10
20
30
40
50
60
70
80
LOAD (%)
LINE INPUT (VOLTS)
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%.
4
POWER-ONE [ POWER-ONE ]
