Delta Electronics Series S48SA, 33W Family manual Electrical Characteristics Curves

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 mΩESR 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 mΩ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 (LTEST) of 12 µH. Capacitor Cs offset possible battery impedance.

DS_S48SA1R812_06012006

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