Delta-electronics F48SA Manual de usuario descargar pdf (Pagina 5)

ELECTRICAL CHARACTERISTICS CURVES

Figure 7: Output voltage response to step-change in load

current (75%-50% of Io, max; di/dt = 1A/µs). Load cap: 470µF

aluminum ,10uF Low ESR capacitor and 1µF ceramic

capacitor. Top Trace: Vout (200mV/div), Bottom Trace: Iout

(10

/div). Scope measurement 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 8: Output voltage response to step-change in load

current (50%-75% of Io, max; di/dt = 1A/µs). Load cap: 470µF

aluminum,10uF Low ESR capacitor and 1µF ceramic capacitor.

Top Trace: Vout (200mV/div), Bottom Trace: Iout (10

/div).

Scope measurement 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 9: 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 15 μH. Capacitor Cs offset

possible battery impedance. Measure current as shown above.

DS_F48SA28025_12072007

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Delta-electronics F48SA Manual de usuario Pagina 5