DS_S48SA1R812_06012006
ELECTRICAL CHARACTERISTICS CURVES
Strip
Copper
Vo(-)
Vo(+)
10u
1u
SCOPE
RESISTIVE
LOAD
Figure 9
:
Input Reflected Ripple Current, is, at full rated output
current
and nominal input voltage with 12
µ
H source impedance
and 33
µ
F electrolytic capacitor (2 mA/div).
Figure
10:
Output voltage noise and ripple measurement test
setup. Scope measurement should be made using a BNC
cable (length shorter than 20 inches). Position the load
between 51 mm to 76 mm (2 inches to 3 inches) from the
module.
0.0
0.3
0.6
0.9
1.2
1.5
1.8
2.1
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
LOAD CURRENT (A)
O
U
T
P
U
T
VO
L
T
AG
E (
V
)
Vin=48V
Figure 11:
Output voltage ripple at nominal input voltage and
rated
load current (20 mV/div). Load capacitance: 1
µ
F ceramic
capacitor and 10
µ
F tantalum capacitor. Bandwidth: 20 MHz.
Figure 12:
Output voltage vs. load current showing typical
current limit
curves and converter shutdown points.
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