Delta Electronics S48SE manual Electrical Characteristics Curves

ELECTRICAL CHARACTERISTICS CURVES

	90
	85
(%)	80
	75						75Vin
EFFICIENCY					48Vin
	70			36Vin
	65
	60
	55
	50
	0	0.4	0.8	1.2	1.6	2	2.4	2.8	3.2

OUTPUT CURRENT (A)

	2.8
DISSIPATION	2.4
	2
	1.6						75Vin
POWER	1.2					48Vin
	0.8					36Vin
	0.4
	0
	0	0.4	0.8	1.2	1.6	2	2.4	2.8	3.2

OUTPUT CURRENT (A)

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

	0.6
(A)	0.5
CURRENT	0.4
	0.3
INPUT	0.2
	0.1
	0
	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.

Figure 3: Typical full load input characteristics at room	Figure 4: (For negative remote on/off logic) Turn-on transient at
temperature.	full rated load current (5 ms/div). Vin=48V. Top Trace: Vout, 2V/div;
	Bottom Trace: ON/OFF input, 2V/div.

Figure 5: (For negative remote on/off logic) Turn-on transient at	Figure 6: (For positive remote on/off logic) Turn-on transient at full
zero load current (5 ms/div). Vin=48V. Top Trace: Vout, 2V/div,	rated load current (5 ms/div). Vin=48V. Top Trace: Vout, 2V/div;
Bottom Trace: ON/OFF input, 2V/div.	Bottom Trace: ON/OFF input, 2V/div.

DS_S48SE05003_12292006

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