ELECTRICAL CHARACTERISTICS CURVES
Figure 13: Input Terminal Ripple Current, ic, at full rated output current and nominal input voltage with 12µH source impedance and 33µF electrolytic capacitor (500 mA/div).
Copper Strip |
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Vo(+) |
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10u | 1u | SCOPE | RESISTIVE |
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Figure 15: Output voltage noise and ripple measurement test setup
| 2.0 |
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(V) | 1.8 |
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VOLTAGE |
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1.6 |
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1.4 |
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OUTPUT |
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1.2 |
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1.0 |
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| 0.8 |
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| 0.6 |
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| 0.4 |
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| 0.2 |
| Vin=48V |
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| 0.0 |
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| 0 | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 | 90 | 100 |
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| LOAD CURRENT (A) | ||
Figure 17: Output voltage vs. load current showing typical current limit curves and converter shutdown points.
Figure 14: Input reflected ripple current, is, through a 12µH source inductor at nominal input voltage and rated load current (5 mA/div).
Figure 16: Output voltage ripple at nominal input voltage and
rated load current (50 mV/div). Load capacitance: 1µF ceramic
capacitor and 10µF tantalum capacitor. Bandwidth: 20 MHz. Scope measurement 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. |
6
DS_H48SR1R880_06272006
