DFA6U12S12 Просмотр технического описания (PDF) - Power-One Inc.
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DFA6U12S12 Datasheet PDF : 3 Pages
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DFA6 SERIES – SINGLE OUTPUT
+ INPUT 1
– INPUT 2
DFA6 SERIES BLOCK DIAGRAM
ISOLATION TRANSFORMER
CURRENT
MODE
PWM
+
+
–
ISO AMP
LOW TC
BANDGAP
REFERENCE
3 + OUTPUT
4 - OUT
Typical Performance: (Tc=25°C, Vin=Nom VDC, Rated Load)
Data for 12 Volt Input Models
12 VOLT EFFICIENCY Vs. LOAD
85
80 LINE = 9VDC
75
LINE = 12VDC
70
65
LINE = 27VDC
60
55
50
45
0 10 20 30 40 50 60 70 80 90 100
LOAD (%)
12 VOLT INPUT CURRENT Vs. LINE INPUT VOLTAGE
1.00
0.75
100% LOAD
0.50
50% LOAD
0.25
0.00
0
5
10
15
20
25
30
LINE INPUT (VOLTS)
Data for 48 Volt Input Models
48 VOLT EFFICIENCY Vs. LOAD
90
85
LINE = 20VDC
80
LINE = 48VDC
75
70
65
LINE = 60VDC
60
55
50
45
40
0 10 20 30 40 50 60 70 80 90 100
LOAD (%)
48 VOLT INPUT CURRENT Vs. LINE INPUT VOLTAGE
0.5
0.4
100% LOAD
0.3
0.2
50% LOAD
0.1
0.0
0
10
20
30
40
50
60
LINE INPUT (VOLTS)
OUTPUT POWER DERATING
6
5
4
3
2
50
60
70
80
90 100
AMBIENT TEMPERATURE
12 VOLT EFFICIENCY Vs. LINE INPUT VOLTAGE
85
100% LOAD
80
50% LOAD
75
70
5
10
15
20
25
30
LINE INPUT (VOLTS)
A 48 VOLT EFFICIENCY Vs. LINE INPUT VOLTAGE
90
100% LOAD
85
80
50% LOAD
75
70
65
20
30
40
50
60
LINE INPUT (VOLTS)
3
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