Delta Electronics Series S48SS manual Electrical Characteristics Curves

ELECTRICAL CHARACTERISTICS CURVES

(%)	90
EFFICIENCY		36Vin	48Vin	75Vin
	85
	80
	75
	70
	65
	60
	0.25	0.5	0.75	1	1.25

OUTPUT CURRENT (A)

(W)	4.0
DISSIPATION
		36Vin	48Vin	75Vin
	3.5
	3.0
POWER
	2.5
	2.0
	1.5
	1.0
	0.5
	0.0
	0.25	0.5	0.75	1	1.25

OUTPUT CURRENT (A)

Figure 1: Efficiency vs. load current for minimum, nominal, and maximum input voltage at 25°C.

Figure 2: Power dissipation vs. load current for minimum, nominal, and maximum input voltage at 25°C.

(A)	0.6
CURRENT
					Io=1.25A				Io=0.75A
	0.5				Io=0.125A
INPUT
	0.4
	0.3
	0.2
	0.1
	0.0
	30	35	40	45	50	55	60	65	70	75

INPUT VOLTAGE (V)
Figure 3: Typical input characteristics at room temperature.	Figure 4: Turn-on transient at full rated load current (resistive
	load) (10 ms/div). Top Trace: Vout (5V/div); Bottom Trace:
	ON/OFF Control (2V/div).

3

DS_s48SS12001_06082006