Q48SA54001NNFH Datasheet, PDF (6/13 Pages) Delta Electronics, Inc. – Delphi Series Q48SA, 80W Quarter Brick Family DC/DC Power Modules: 36~75V in, 54V/1.5A out

ELECTRICAL CHARACTERISTICS CURVES
Figure 12: Input reflected ripple current, is, through a 12µH
source inductor at nominal input voltage and rated load current
(20mA/div，2us/div).
Figure 13: Output voltage noise and ripple measurement test
setup.
60
54
48
42
36
30
24
18
12
6
0
0.3 0.5 0.7 0.9 1.1 1.3 1.5 1.7 1.9 2.1 2.3
LOAD CURRENT(A)
Figure 14: Output voltage ripple at nominal input voltage and
rated load current (Io=1.5A)(50mV/div, 2us/div)
Load capacitance: 1µF ceramic capacitor and 220µF
electrolytic capacitor. Bandwidth: 20MHz. Scope
measurements 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.
DS_Q48SA54001_05172013
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