Delta Electronics Delphi Series S48SS - Manual (Page 3)

DS_s48SS12001_06082006
ELECTRICAL CHARACTERISTICS CURVES
60
65
70
75
80
85
90
0.25 0.5 0.75 1 1.25
OUTPUT CURRENT (A)
EF
F
IC
IEN
C
Y
(
%
)
36Vin 48Vin 75Vin
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
0.25 0.5 0.75 1 1.25
OUTPUT CURRENT (A)
P
O
W
E
R
D
ISSI
PAT
IO
N
(
W
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.
0.0
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)
INP
U
T CURRE
NT (
A
)
Io=1.25A Io=0.75A
Io=0.125A
Figure 3: Typical input characteristics at room temperature. Figure 4: Turn-on transient at full rated load current (resistive
load) (10 ms/div). Top Trace: Vout (5V/div); Bottom Trace:
ON/OFF Control (2V/div).
3
36Vin 48Vin 75Vin
)