BQ24702PWRG4

多化学类型电池充电控制器和系统电源选择器 MULTICHEMISTRY BATTERY CHARGER CONTROLLER AND SYSTEM POWER SELECTOR

DESCRIPON

The bq24702/bq24703 is a highly integrated battery charge controller and selector tailored for notebook and sub-notebook PC applications. The bq24702/bq24703 uses dynamic power management DPM to minimize battery charge time by maximizing use of available wall-adapter power. This is achieved by dynamically adjusting the battery charge current based on the total system adapter current.

FEATURES

Dynamic Power Management, DPM Minimizes Battery Charge Time

Integrated Selector Supports Battery Conditioning and Smart Battery Learn Cycle

Zero Volt Operation

Selector Feedback Circuit Ensures Break-Before-Make Transition

±0.4% Charge Voltage Accuracy, Suitable for Charging Li-Ion Cells

±4% Charge Current Accuracy

300-kHz Integrated PWM Controller for High-Efficiency Buck Regulation

Depleted Battery Detection and Indication to Protect Battery From Over Discharge

20-µA Sleep Mode Current for Low Battery Drain

24-Pin TSSOP Package and 5 mm ×5 mm QFN package bq24703 only