TI bq24610锂离子电池开关模式充电控制方案
TI 公司的bq24610/7是高度集成锂离子或离聚合体电池开关模式充电控制器,有固定频率的同步开关PWM控制器,高精度充电电流(±3%)和电压调整(±0.5%),充电预设置,充电终止,适配器电流调整和充电状态监视.输入电压从5V-28V/24V,充电电流高达10A.本文介绍bq24610/7主要特性,功能方框图,典型应用电路,输入滤波器以及评估板EVM主要特性,电路图和材料清单.
The bq24610/7 is highly integrated Li-ion or Li-polymer switch-mode battery charge controller. It offers a constant-frequency synchronous switching PWM controller with high accuracy charge current and voltage regulation, charge preconditioning, termination, adapter current regulation and charge status monitoring.
The bq24610/7 charges the battery in three phases: preconditioning, constant current, and constant voltage. Charge is terminated when the current reaches a minimum user-selectable level. A programmable charge timer provides a safety backup. The bq24610/7 automatically restarts the charge cycle if the battery voltage falls below an internal threshold, and enters a low-quiescent current sleep mode when the input voltage falls below the battery voltage.
bq24610/7主要特性:
600 kHz NMOS-NMOS Synchronous Buck Converter
Stand-alone Charger Support for Li-Ion or Li-Polymer
5V–28V VCC Input Operating Range and Support 1-6 Battery Cells (bq24610) ..
