Delta Electronics Q48DC manual Electrical Characteristics Curves

ELECTRICAL CHARACTERISTICS CURVES

	90
	87
	84
1	81
(%)	78		48Vin	75Vin
EFFICIENCY	75
	72		36Vin
	69
	66
	63
	60
	0.3	0.7	1.1	1.5	1.9	2.3	2.7
			OUTPUT CURRENT(A)

	10.2
	9.4
DISSIPATION(W)1	8.6
	7.8
	7.0
	6.2
POWER	5.4					36Vin
	4.6				48Vin
			75Vin
	3.8
	3.0
	0.3	0.7	1.1	1.5	1.9	2.3	2.7
			OUTPUT CURRENT(A)

Figure 1: Efficiency vs. load current for minimum, nominal, and maximum input voltage at 25°C. Io1=Io2.

	2.5
	2.3
	2.1
(A)1	1.9
CURRENT	1.7
	1.5
	1.3
INPUT
	1.1
	0.9
	0.7
	0.5
	25	30	35	40	45	50	55	60	65	70	75

INPUT VOLTAGE (V)

Figure 2: Power dissipation vs. load current for minimum, nominal, and maximum input voltage at 25°C. Io1=Io2.

Figure 3: Typical input characteristics at room temperature (Io=full load).

DS_Q48DC12003_03112008 3