BQ24725A_17 Datasheet, PDF (11/47 Pages) Texas Instruments – 1-4 Cell Li+ Battery SMBus Charge Controller with N-Channel Power MOSFET Selector and Advanced Circuit Protection

www.ti.com
Typical Characteristics (continued)
bq24725A
SLUSAL0A – SEPTEMBER 2011 – REVISED AUGUST 2014
CH1: Vin, 10V/div , CH2: LODRV, 5V/div, CH3: PHASE, 10V/div
CH4: inductor current, 2A/div, 2ms/div
Figure 3. Current Soft-Start
,
CH1: ILIM, 1V/div
CH4: inductor current, 1A/div, 4us/div
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
Figure 5. Continuous Conduction Mode Switching
Waveforms
CH1: PHASE, 10V/div, CH2: LODRV, 5V/div
CH3: HIDRV, 10V/div
CH4: inductor current, 1A/div, 400ns/div
Figure 6. Cycle-by-Cycle Synchronous to Non-synchronous
CH1: PHASE, 10V/div, CH2: LODRV, 5V/div
CH4: inductor current, 2A/div, 4us/div
Figure 7. 100% Duty and Refresh Pulse
CH2: battery current, 2A/div, CH3: adapter current, 2A/div
CH4: system load current, 2A/div, 100us/div
Figure 8. System Load Transient (Input DPM)
Copyright © 2011–2014, Texas Instruments Incorporated
Product Folder Links: bq24725A
Submit Documentation Feedback
11