bq24707
bq24707A
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SLUSA78B –JULY 2010–REVISED MARCH 2011
CH1: HIDRV, 10V/div, CH2: LODRV, 5V/div, CH3: PHASE, 10V/div,
CH4: inductor current, 1A/div, 400ns/div
CH1: HIDRV, 10V/div, CH2: LODRV, 5V/div, CH3: PHASE, 10V/div,
CH4: inductor current, 2A/div, 400ns/div
Figure 7. Continuous Conduction Mode Switching
Waveforms
Figure 8. Cycle-by-Cycle Synchronous to
Non-synchronous
CH2: battery current, 2A/div, CH3: adapter current, 2A/div, CH4:
system load current, 2A/div, 100us/div
CH1: PHASE, 10V/div, CH2: LODRV, 5V/div, CH4: inductor current,
2A/div, 4us/div
Figure 9. 100% Duty and Refresh Pulse
Figure 10. System Load Transient (Input DPM)
CH1: PHASE, 20V/div, CH2: battery voltage, 5V/div, CH3: LODRV,
10V/div, CH4: inductor current, 2A/div, 400us/div
CH1: PHASE, 20V/div, CH2: LODRV, 10V/div, CH3: battery voltage,
5V/div, CH4: inductor current, 2A/div, 2ms/div
Figure 11. Battery Insertion
Figure 12. Battery to Ground Short Protection
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