V48SH3R325NNFA datasheet(4/13 Pages) DELTA

Part #	V48SH3R325NNFA

Description	Industry standard footprint and pinout

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Manufacturer	DELTA [Delta Electronics, Inc.]

Direct Link	http://www.deltaww.com

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DS_V48SH3R325_10282013

4

ELECTRICAL CHARACTERISTICS CURVES

For Negative Remote On/Off Start up

Figure 4: Turn-on transient at full rated load current

(10 ms/div). Vin=48V. Top Trace: Vout, 1.0V/div;

Bottom Trace: ON/OFF input, 5V/div

Figure 5: Turn-on transient at zero load current

(10 ms/div). Vin=48V. Top Trace: Vout: 1.0V/div,

Bottom Trace: ON/OFF input, 5V/div

For Input Voltage Start up

Figure 6: Turn-on transient at full rated load current

(10 ms/div). Vin=48V. Top Trace: Vout, 1.0V/div;

Bottom Trace: Vin , 30V/div

Figure 7: Turn-on transient at zero load current

(10 ms/div). Vin=48V. Top Trace: Vout, 1.0V/div;

Bottom Trace: Vin, 30V/div

Figure 8: Output voltage response to step-change in

load current (75%-50%-75% of Io, max; di/dt = 0.1A/µs).

Load cap: 10µF tantalum capacitor and 1µF ceramic

capacitor. Top Trace: Vout (100mV/div, 200us/div),

Bottom Trace: Iout (5A/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 (75%-50%-75% of Io, max; di/dt =

1.0A/µs). Load cap: 2*470µF tantalum capacitor and

1µF ceramic capacitor. Top Trace: Vout (100mV/div,

200us/div),

Bottom

Trace:

Iout

(5A/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

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V48SH3R325NNFA Datasheet(PDF) 4 Page - Delta Electronics, Inc.

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