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MB3891
Efficiency η (%)
Efficiency vs. power supply voltage
| (VSIMOUT Chargepump) | ||
100 |
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| Ta = +25 °C |
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90 |
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80 |
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| SIMPROG = “L” |
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70 |
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60 |
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50 |
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40ILOAD = −10 mA
20ILOAD = −1 mA
0 |
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| 4.5 | 5.0 | 5.5 |
3.0 | 3.5 | 4.0 |
Efficiency vs. power supply voltage (VSIMOUT Chargepump)
| 100 |
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| Ta = +25 °C |
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| 90 |
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(%) | 80 |
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| SIMPROG = “H” | |
70 |
| ILOAD = −10 mA |
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η | 60 |
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Efficiency |
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50 |
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40 | ILOAD = −1 mA |
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30 |
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20 |
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| 10 |
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| 0 |
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| 4.5 | 5.0 | 5.5 |
| 3.0 | 3.5 | 4.0 |
Power supply voltage | Power supply voltage |
Efficiency vs. load current | Efficiency vs. load current |
(VSIMOUT Chargepump) | (VSIMOUT Chargepump) |
| 100 |
| Ta = +25 °C |
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| 100 |
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| 90 |
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| 90 |
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| VBAT = |
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| 80 |
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| 80 |
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(%) |
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70 |
| SIMPROG = “L” |
| 70 |
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η | 60 |
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| η | 60 |
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Efficiency |
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| Efficiency |
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50 |
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| 50 |
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| 40 |
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| 40 |
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| 30 |
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| 30 |
| Ta = +25 °C |
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| 20 |
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| 20 |
| VBAT = | ||
| 10 |
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| 10 |
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| SIMPROG = “H” |
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| 0 |
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| 0 |
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| −5 | −10 | −15 | −20 |
| −5 | −10 | −15 | −20 | ||
| 0 |
| 0 |
Load current ILOAD (mA) | Load current ILOAD (mA) |
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| Output voltage rising waveforms |
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| Input voltage |
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Input voltage |
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| (VSIMOUT Chargepump) |
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10 |
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| 10 | ||
5 |
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| voltage VSIMOUT (V) | 5 | |||||
0 |
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| VSIMOUT |
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| 5 | 0 | |||||
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| 4 |
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| 3 |
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| 2 |
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| Ta = +25 °C |
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| 1 |
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| VBAT = | Output |
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| SIMPROG = “H” |
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| 0 |
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| VSIMOUT = 510 Ω |
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| 0.0 | 0.5 | 1.0 | 1.5 | 2.0 | 2.5 | 3.0 | 3.5 | 4.0 | 4.5 | 5.0 |
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t (ms)
Output voltage rising waveforms (VSIMOUT Chargepump)
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| (V) |
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| VSIMOUT |
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| 3 | VSIMOUT | ||
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| voltage | |
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| 2 | |
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| Ta = +25 °C |
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| 1 | |||
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| VBAT = | Output | |||||||
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| SIMPROG = “L” |
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| 0 | ||||
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| VSIMOUT = 510 Ω |
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0.0 | 0.5 | 1.0 | 1.5 | 2.0 | 2.5 | 3.0 | 3.5 | 4.0 | 4.5 | 5.0 |
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t (ms)
(Continued)
19