Q48SE12025PNFH datasheet(5/14 Pages) DELTA

Part #	Q48SE12025PNFH

Description	Delphi Series Q48SE, Quarter Brick Family DC/DC Power Modules 38~75V in, 11.8V/25A out, 300W

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Manufacturer	DELTA [Delta Electronics, Inc.]

Direct Link	http://www.deltaww.com

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DS_Q48SE12025_06242013

5

ELECTRICAL CHARACTERISTICS CURVES

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

current (75%-50% of Io, max; di/dt = 0.1A/µs). Load cap: 10µF,

tantalum capacitor and 1µF ceramic capacitor. Top Trace: Vout;

100mV/div; Bottom Trace: output current: 10A/div; Time:

200us/div

Figure 9: Output voltage response to step-change in load

current (50%-75% of Io, max; di/dt = 0.1A/µs). Load cap: 10µF,

tantalum capacitor and 1µF ceramic capacitor. Top Trace: Vout;

100mV/div; Bottom Trace: output current: 10A/div; Time:

200us/div

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 (LTEST) of 12 μH. Capacitor Cs offset

possible battery impedance. Measure current as shown above.

Figure 11: Input Terminal Ripple Current, ic, at full rated output

current and nominal input voltage with 12µH source impedance

and 33µF electrolytic capacitor (200 mA/div，2us/div).

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