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.
bq24271中文数据手册:点击下载
更多原理图及源代码热门应用电路：立刻点击
