Q48DB12003NRFA Datasheet, PDF (7/13 Pages) Delta Electronics, Inc. – Delphi Series Q48DB, 65W Quarter Brick Dual Output DC/DC Power Modules: 48V in, ±12V, 2.7A Output

ELECTRICAL CHARACTERISTICS CURVES
Vo(+)
CopperStrip
10u
1u
SCOPE
RESISTIV
LOAD
Vo(-)
Figure 13: Output voltage noise and ripple measurement
test setup
13.0
12.0
11.0
10.0
9.0
8.0
7.0
6.0
5.0
4.0
3.0
2.0
1.0
V i n=48V
0.0
0
1
2
3
4
5
6
7
8
LOAD CURRENT (A)
Figure 14: Output voltage ripple at nominal input voltage
(Vin=48V) and rated load current (Io1=Io2=2.7A)
(20
mV/div). Load capacitance: 1µF ceramic capacitor and 10µF
tantalum capacitor. Bandwidth: 20 MHz. (See Figure 12). Scope
measurement should be made using a BNC cable (length short
than 20 inch). Position the load between 51 mm and 76 mm (2inch
and 3 inch) from the module.
Figure 15: Output voltage vs. load current showing typical
current limit curves and converter shutdown points.
DS_Q48DB12003_04182006
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