Delta Electronics S48SA - Manual (Page 4)

DS_S48SA05006_06022006
4
ELECTRICAL CHARACTERISTICS CURVES
Figure5 :
Turn-on transient at zero load current (2 ms/div). Top
Trace: Vout (2V/div); Bottom Trace: ON/OFF Control (5V/div).
Figure 6: Output voltage response to step-change in load
current (50%-75% of Io, max; di/dt = 0.1A/µs). Load cap: 10µF,
100 m
ΩESR tantalum capacitor and 1µF ceramic capacitor.
Top Trace: Vout (50mV/div), Bottom Trace: Iout (2A/div).
Figure 7 :
Output voltage response to step-change in load
current (75%-50% of Io, max; di/dt = 0.1A/µs). Load cap:
10µF, 100 m
ΩESR tantalum capacitor and 1µF ceramic
capacitor. Top Trace: Vout (50mV/div), Bottom Trace: Iout
2A/div).
Figure 8: Test set-up diagram showing measurement points
for Input Reflected Ripple Current (Figure 9).
Note: Measured input reflected-ripple current with a simulated
source Inductance (L
TEST
) of 12 µH. Capacitor Cs offset
possible battery impedance.