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Electrical characteristics curves – Delta Electronics 33W Family User Manual

Page 4

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DS_S48SA1R812_06012006

4

ELECTRICAL CHARACTERISTICS CURVES

Figure5

:

Turn-on transient at zero load current (1 ms/div). Top

Trace: Vout (500mV/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

ESR tantalum capacitor and 1µF ceramic capacitor.

Top Trace: Vout (50mV/div), Bottom Trace: Iout (5A/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

ESR tantalum capacitor and 1µF ceramic

capacitor. Top Trace: Vout (50mV/div), Bottom Trace: Iout
5A/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.

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