ELECTRICAL CHARACTERISTICS CURVES
Vo(+)
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Copper Strip
10u | 1u | SCOPE | RESISTIV |
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Figure 12: Input reflected ripple current, is, through a 12µH source inductor at nominal input voltage and rated load current (20 mA/div, 2us/div)
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Figure 13: Output voltage noise and ripple measurement test
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| 14 |
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| 12 |
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(V) | 10 |
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VOLTAGE | 8 |
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OUTPUT | 6 |
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4 |
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| 2 |
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| 0 |
| 48V |
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| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
LOAD CURRENT (A)
Figure 14: Output voltage ripple at nominal input voltage and rated load current (Io=7A)(20 mV/div, 2us/div)
Load capacitance: 1µF ceramic capacitor and 10µF tantalum
capacitor. Bandwidth: 20 MHz. Scope measurements should be made using a BNC cable (length shorter than 20 inches). Position the load between 51 mm to 76 mm (2 inches to 3 inches) from the module.
Figure 15: Output voltage vs. load current showing typical current limit curves and converter shutdown points
E48SR12007_05222008 | 6 |
