Delta Electronics 33W Family, Series S48SA manual Electrical Characteristics Curves

ELECTRICAL CHARACTERISTICS CURVES

(%)	95
EFFICIENCY	90
	85
	80
	75
	70
	65									36Vin
										48Vin
	60									75Vin
	55
	1	2	3	4	5	6	7	8	9	10	11	12

OUTPUT CURRENT (A)

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

(A)	0.8
CURRENT	0.7								Io=12A
									Io=7.2A
									Io=1.2A
INPUT	0.6
	0.5
	0.4
	0.3
	0.2
	0.1
	0.0
	30	35	40	45	50	55	60	65	70	75

INPUT VOLTAGE (V)

(W)	4.0
DISSIPATION
	3.5
	3.0
POWER
	2.5
	2.0
	1.5
	1.0									36Vin
										48Vin
	0.5									75Vin
	0.0
	1	2	3	4	5	6	7	8	9	10	11	12

OUTPUT CURRENT (A)

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

Figure 3: Typical input characteristics at room temperature.

Figure 4: Turn-on transient at full rated load current (1 ms/div).

Top Trace: Vout (500mV/div); Bottom Trace: ON/OFF Control (5V/div).

DS_S48SA1R812_06012006

3