DFA6 SERIES – SINGLE OUTPUT
DFA6 SERIES BLOCK DIAGRAM
OUTPUT POWER DERATING
ISOLATION TRANSFORMER
6
5
4
3
2
+ OUTPUT
- OUT
3
4
+
1
2
+ INPUT
– INPUT
CURRENT
MODE
PWM
+
–
ISO AMP
LOW TC
BANDGAP
REFERENCE
50
60
70
80
90
100
AMBIENT TEMPERATURE
Typical Performance: (Tc=25°C, Vin=Nom VDC, Rated Load)
Data for 12 Volt Input Models
12 VOLT INPUT CURRENT Vs. LINE INPUT VOLTAGE
1.00
12 VOLT EFFICIENCY Vs. LOAD
12 VOLT EFFICIENCY Vs. LINE INPUT VOLTAGE
85
85
80
100% LOAD
LINE = 9VDC
LINE = 12VDC
LINE = 27VDC
0.75
75
70
65
60
100% LOAD
80
75
70
0.50
50% LOAD
50% LOAD
0.25
55
50
45
0.00
0
5
10
15
20
25
30
0
10 20 30 40 50 60 70 80 90 100
5
10
15
20
25
30
LINE INPUT (VOLTS)
LOAD (%)
LINE INPUT (VOLTS)
Data for 48 Volt Input Models
48 VOLT EFFICIENCY Vs. LINE INPUT VOLTAGE
90
48 VOLT INPUT CURRENT Vs. LINE INPUT VOLTAGE
0.5
48 VOLT EFFICIENCY Vs. LOAD
90
85
A
100% LOAD
LINE = 20VDC
85
80
75
70
65
0.4
80
LINE = 48VDC
75
70
100% LOAD
0.3
50% LOAD
65
LINE = 60VDC
60
0.2
50% LOAD
55
50
45
40
0.1
0.0
20
30
40
50
60
0
10
20
30
40
50
60
0
10 20 30 40 50 60 70 80 90 100
LINE INPUT (VOLTS)
LINE INPUT (VOLTS)
LOAD (%)
3
POWER-ONE [ POWER-ONE ]
