bq24271参考设计电路|电池充电器应用电路

bq24271是高度集成的单节锂离子电池充电器和系统电源路径管理器件，主要针对空间有限且含有大容量电池的便携式应用。此篇主要介绍了bq24271特性、应用范围、参考设计电路以及电路分析，帮助大家缩短设计时间。

bq24271特性：具有独立电源路径控制的高效开关模式充电器；安全且精确的电池管理功能；可使用I2C接口设定充电参数；基于电压的NTC监控输入

bq24271典型应用范围：手持产品；便携式媒体播放器；便携式设备；上网本和便携式互联网器件

bq24271参考设计应用电路：

图1bq24271内部结构图

The bq24271 are highly integrated single cell Li-Ion battery charger and system power path management devices targeted for space-limited, portable applications with high capacity batteries. The single cell charger has several input current limits which allow operation from either a USB port or higher power input supply (i.e. AC adapter or wireless charging input) for a versatile solution.

图2bq24271参考设计图

Thebq24271 is highly integrated single cell Li-Ion battery chargers and system power path management devices targeted for space-limited, portable applications with high capacity batteries. The singleinput,single cell charger operates from either a USB port or alternate power source (i.e. wall adapter or wireless power input) for a versatile solution.

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