BQ24725ARGRR datasheet(11/47 Pages) TI1

Part #	BQ24725ARGRR

Description	1-4 Cell Li Battery SMBus Charge Controller with N-Channel Power MOSFET Selector and Advanced Circuit Protection

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Manufacturer	TI1 [Texas Instruments]

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bq24725A

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SLUSAL0A – SEPTEMBER 2011 – REVISED AUGUST 2014

Typical Characteristics (continued)

,

CH1: Vin, 10V/div , CH2: LODRV, 5V/div, CH3: PHASE, 10V/div

CH1: ILIM, 1V/div

CH4: inductor current, 2A/div, 2ms/div

CH4: inductor current, 1A/div, 4us/div

Figure 3. Current Soft-Start

Figure 4. Charge Disable by ILIM

CH1: PHASE, 10V/div, CH2: LODRV, 5V/div

CH3: HIDRV, 10V/div

CH4: inductor current, 2A/div, 400ns/div

CH4: inductor current, 1A/div, 400ns/div

Figure 5. Continuous Conduction Mode Switching

Figure 6. Cycle-by-Cycle Synchronous to Non-synchronous

Waveforms

CH1: PHASE, 10V/div, CH2: LODRV, 5V/div

CH2: battery current, 2A/div, CH3: adapter current, 2A/div

CH4: inductor current, 2A/div, 4us/div

CH4: system load current, 2A/div, 100us/div

Figure 7. 100% Duty and Refresh Pulse

Figure 8. System Load Transient (Input DPM)

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