BQ24735_17 Datasheet, PDF (11/46 Pages) Texas Instruments – 1- to 4-Cell Li+ Battery SMBus Charge Controller for Supporting Turbo Boost Mode With N-Channel Power MOSFET Selector

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Typical Characteristics (continued)
bq24735
SLUSAK9B – SEPTEMBER 2011 – REVISED APRIL 2015
CH1: PHASE, 10 V/div,
CH2: LODRV, 5 V/div,
CH3: HIDRV, 10 V/div
CH4: inductor current, 2 A/div, 400 ns/div
Figure 5. Continuous Conduction Mode Switching
Waveforms
CH1: PHASE, 10 V/div,
CH2: LODRV, 5 V/div,
CH3: HIDRV, 10 V/div,
CH4: inductor current, 1 A/div, 400 ns/div
Figure 6. Cycle-by-Cycle Synchronous to Nonsynchronous
CH1: PHASE, 10 V/div,
CH2: LODRV, 5 V/div,
CH4: inductor current, 2 A/div, 4 µs/div
Figure 7. 100% Duty and Refresh Pulse
CH2: battery current, 2 A/div,
CH3: adapter current, 2 A/div,
CH4: system load current, 2 A/div, 100 µs/div
Figure 8. System Load Transient (Input DPM)
CH3: adapter current, 2 A/div,
CH4: battery current, 2 A/div, 10 ms/div
Figure 9. Buck-to-Boost Mode
CH3: adapter current, 2 A/div,
CH4: battery current, 2 A/div, 10 ms/div
Figure 10. Boost-to-Buck Mode
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