Datasheet

DS_ V36SE12004_11192014 E-mail: [e-mail]
http://www.deltaww.com/dcdc
P5
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, i
c
, at full rated output
current and nominal input voltage (Vin=48v) with 12µH source
impedance and 33µF electrolytic capacitor (200 mA/div,
1us/div)
Figure 10: Input reflected ripple current, i
s
, through a 12µH
source inductor at nominal input voltage (vin=48v) and rated
load current (20 mA/div, 1us/div)
Figure 11: Output voltage noise and ripple measurement test
setup
3
4
5
6
7
8
9
10
11
12
13
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
LOAD CURRENT(A)
OUTPUT VOLTAGE(V) 1
Figure 12: Output voltage ripple at nominal input voltage
(vin=48v) and rated load current (Io=4.2A) (50 mV/div,
1us/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