ELECTRICAL CHARACTERISTICS CURVES
| 90 |
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(%) | 88 |
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EFFICIENCY |
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86 |
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| 84 |
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| 82 |
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| 80 |
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| 78 |
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| 36Vin |
| 48Vin | 75Vin |
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| 76 |
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| 0.8 | 1.0 | 1.2 | 1.4 | 1.6 | 1.8 |
OUTPUT VOLTAGE (V)
Figure 5: Efficiency vs. output voltage for minimum, nominal, and maximum input voltage at 25°C. (Iout=80A)
| 6.0 |
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(A) |
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| Io=80A |
| Io=48A |
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| Io=8A |
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INPUT CURREN | 5.0 |
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4.0 |
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| 3.0 |
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| 2.0 |
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| 1.0 |
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| 0.0 |
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| 30 | 35 | 40 | 45 | 50 | 55 | 60 | 65 | 70 | 75 |
INPUT VOLTAGE (V)
Figure 7: Typical input characteristics at room temperature
(W) | 24.0 |
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DISSIPATION | 22.0 |
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20.0 |
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POWER |
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18.0 |
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| 16.0 |
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| 14.0 |
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| 12.0 |
| 36Vin | 48Vin | 75Vin |
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| 10.0 |
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| 0.8 | 1.0 | 1.2 | 1.4 | 1.6 | 1.8 |
OUTPUT VOLTAGE (V)
Figure 6: Power dissipation vs. output voltage for minimum, nominal, and maximum input voltage at 25°C. (Iout=80A)
Figure 8: Turn-on transient at full rated load current (resistive
load) (1 ms/div). Top Trace: Vout; 1V/div; Bottom Trace:
ON/OFF input: 2V/div
4
DS_H48SR1R880_06272006
