ELECTRICAL CHARACTERISTICS CURVES
(%) | 95 |
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EFFICIENCY | 90 |
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85 |
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| 80 |
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| 75 |
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| 70 |
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| 65 |
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| 36Vin |
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| 48Vin |
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| 60 |
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| 75Vin |
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| 55 |
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| 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 |
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CURRENT | 0.7 |
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| Io=12A |
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| Io=7.2A |
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| Io=1.2A |
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INPUT | 0.6 |
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| 0.5 |
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| 0.4 |
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| 0.3 |
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| 0.2 |
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| 0.1 |
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| 0.0 |
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| 30 | 35 | 40 | 45 | 50 | 55 | 60 | 65 | 70 | 75 |
INPUT VOLTAGE (V)
(W) | 4.0 |
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DISSIPATION |
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3.5 |
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3.0 |
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POWER |
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2.5 |
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| 2.0 |
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| 1.5 |
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| 1.0 |
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| 36Vin |
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| 48Vin |
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| 0.5 |
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| 75Vin |
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| 0.0 |
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| 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
