H48SC3R325PSFA Datasheet, PDF (6/12 Pages) Delta Electronics, Inc. – Delphi Series H48SC3R325, 85W Half Brick Family DC/DC Power Modules: 48V in, 3.3V/25A out

ELECTRICAL CHARACTERISTICS CURVES
Vo(+)
Vo(-)
Copper Strip
10u
1u
SCOPE
RESISTIVE
LOAD
Figure 12: Output voltage noise and ripple measurement test
setup
Figure 13: Input reflected ripple current, is, through a 12µH
source inductor at nominal input voltage and rated load
current (5mA/div)
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
5 8 11 14 17 20 23 26 29 32 35
OUTPUT CURRENT(A)
Figure 14: Output voltage ripple at nominal input voltage and
rated load current (10mV/div). Load capacitance: 1µF ceramic
capacitor and 10µFlow ESR capacitor. Bandwidth: 20 MHz.
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.
Figure 15: Output voltage vs. load current showing typical
current limit curves and converter shutdown points.
H48SC3R325_07122011
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