Delta Electronics H48SN Manuale Utente Scaricare il pdf (Pagina 5)

ELECTRICAL CHARACTERISTICS CURVES

Figure 8: Output voltage response to step-change in load

current (75%-50% of Io, max; di/dt = 1A/10µS

)

. Load cap:

330µF aluminum,10uF Low ESR capacitor and 1µF ceramic

capacitor. Top Trace: Vout (100mV/div), Bottom Trace: Iout

/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: Output voltage response to step-change in load

current (50%-75% of Io, max; di/dt = 1A/10µS

)

. Load cap:

330µF aluminum,10uF Low ESR capacitor and 1µF ceramic

capacitor. Top Trace: Vout (100mV/div), Bottom Trace: Iout

/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 10: 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.

H48SN28012_01172008

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Delta Electronics H48SN Manuale Utente Pagina 5