Delta Electronics S48SA manual Electrical Characteristics Curves

ELECTRICAL CHARACTERISTICS CURVES

(%)	95
EFFICIENCY	90
	85
	80
	75
						36Vin
						48Vin
	70					75Vin
	65
	1	2	3	4	5	6	6.6
					OUTPUT CURRENT (A)

(W)	4.0
DISSIPATION	3.5
	3.0
POWER	2.5
	2.0
	1.5
	1.0					36Vin
	0.5					48Vin
						75Vin
	0.0
	1	2	3	4	5	6	6.6

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)	1.2
CURRENT								Io=6.6A
	1.0							Io=3.96A
								Io=0.66A
INPUT
	0.8
	0.6
	0.4
	0.2
	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 (2 ms/div).

Top Trace: Vout (2V/div); Bottom Trace: ON/OFF Control (5V/div).

3

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