Datasheet

E36SC12009_05152014
5
ELECTRICAL CHARACTERISTICS CURVES
Figure 8: Test set-up diagram showing measurement points for
Input Terminal Ripple Current and Input Reflected Ripple
Current.
Note: Measured input reflected-ripple current with a simulated
source Inductance (L
TEST
) of 12 μH. Capacitor Cs offset
possible battery impedance. Measure current as shown above
Figure 9: Input Terminal Ripple Current, ic, at full rated output
current and nominal input voltage (Vin=48V) with 12µH source
impedance and 33µF electrolytic capacitor (250mA/div, 2us/div)
Figure 10: Input reflected ripple current, i
s
, through a 12µH
source inductor at nominal input voltage (Vin=48V) and rated
load current (5mA/div, 2us/div)
Figure 11: Output voltage noise and ripple measurement test
setup
Figure 12: Output voltage ripple at nominal input voltage
(Vin=48V) and rated load current (Io=9A) (20mV/div,
2us/div).Load capacitance: 1µF ceramic capacitor and 10µF
tantalum capacitor. Bandwidth: 20 MHz. 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 13: Output voltage vs. load current showing typical
current limit curves and converter shutdown points (Vin=48V)
StripCopper
Vo(-)
Vo(+)
10u 1u
SCOPE RESISTIVE
LOAD
0
0
0