Electrical characteristics curves – Delta Electronics Q48SR User Manual
Page 4
ELECTRICAL CHARACTERISTICS CURVES
80
82
84
86
88
90
92
94
1.8
2.0
2.2
2.4
2.6
2.8
3.0
3.2
3.3
OUTPUT VOLTAGE (V)
E
FFICIE
NCY
(%)
36Vin
48Vin
75Vin
10.0
12.0
14.0
16.0
18.0
20.0
22.0
24.0
1.8
2.0
2.2
2.4
2.6
2.8
3.0
3.2
3.3
OUTPUT VOLTAGE (V)
POW
E
R
D
ISSIPATION
(
W
)
36Vin
48Vin
75Vin
Figure 5: Efficiency vs. output voltage for minimum, nominal, and
maximum input voltage at 25°C. (Iout=50A)
Figure
6:
Power dissipation vs. output voltage for minimum,
nominal, and maximum input voltage at 25°C. (Iout=50A)
0.0
1.0
2.0
3.0
4.0
5.0
6.0
30
35
40
45
50
55
60
65
70
75
INPUT VOLTAGE (V)
INP
U
T CURRE
N (A
)
Io=50A
Io=30A
Io=5A
Figure 7:
Typical input characteristics at room temperature
Figure
8:
Turn-on transient at full rated load current (resistive
load) (5 ms/div). Top Trace: Vout; 1V/div; Bottom Trace:
ON/OFF input: 2V/div
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