V48SH1R840NRFH datasheet(4/13 Pages) DELTA

Part #	V48SH1R840NRFH

Description	Delphi Series V48SH, 1/16th Brick 100W DC/DC Power Modules: 48V in, 1.8V, 40A out

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Manufacturer	DELTA [Delta Electronics, Inc.]

Direct Link	http://www.deltaww.com

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DS_V48SH1R840_05162011

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,

20V/div

Figure 7: Turn-on transient at zero load current (10 ms/div).

Vin=48V. Top Trace: Vout, 1.0V/div; Bottom Trace: Vin, 20V/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 (50mV/div, 200us/div), Bottom Trace: Iout (10A/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:

220µF tantalum capacitor and 1µF ceramic capacitor. Top

Trace: Vout (100mV/div, 200us/div), Bottom Trace: Iout

(10A/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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