Electrical characteristics curves – Delta Electronics S48SE User Manual
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DS_S48SE05003_12292006
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ELECTRICAL CHARACTERISTICS CURVES
Figure 1: Efficiency vs. load current for minimum, nominal, and
maximum input voltage at 25°C.
Figure 2: Power dissipation vs. load current for minimum, nominal,
and maximum input voltage at 25°C.
Figure 3: Typical full load input characteristics at room
temperature.
Figure 4: (For negative remote on/off logic) Turn-on transient at
full rated load current (5 ms/div). Vin=48V. Top Trace: Vout, 2V/div;
Bottom Trace: ON/OFF input, 2V/div.
Figure 5: (For negative remote on/off logic) Turn-on transient at
zero load current (5 ms/div). Vin=48V. Top Trace: Vout, 2V/div,
Bottom Trace: ON/OFF input, 2V/div.
Figure 6: (For positive remote on/off logic) Turn-on transient at full
rated load current (5 ms/div). Vin=48V. Top Trace: Vout, 2V/div;
Bottom Trace: ON/OFF input, 2V/div.
50
55
60
65
70
75
80
85
90
0
0.4
0.8
1.2
1.6
2
2.4
2.8
3.2
OUTPUT CURRENT (A)
EF
FI
C
IE
N
C
Y
(%
)
75Vin
36Vin
48Vin
0
0.4
0.8
1.2
1.6
2
2.4
2.8
0
0.4
0.8
1.2
1.6
2
2.4
2.8
3.2
OUTPUT CURRENT (A)
PO
W
E
R
D
ISSI
PAT
IO
N
75Vin
48Vin
36Vin
0
0.1
0.2
0.3
0.4
0.5
0.6
30
35
40
45
50
55
60
65
70
75
INPUT VOLTAGE (V)
IN
PU
T
C
U
R
R
EN
T
(A
)