Linear LTC4155平板电脑双路电源管理解决方案
Linear 公司的LTC4155是集成了I2C控制和USB OTG双路输入电源管理器和3.5A锂电池充电器,输入电源5V如USB端口和适配器,主要用在平板电脑,超薄移动电脑,智能手机,数码相机,GPS,PDA,视频媒体播放器以及手持媒体设备.本文介绍了LTC4155主要特性,方框图以及多种应用电路.
Dual Input Power Manager/3.5A Li-Ion Battery Charger with I2C Control and USB OTG
The LTC®4155 is a 15 watt I2C controlled power manager with PowerPath™ instant-on operation, high efficiency switching battery charging and USB compatibility. The LTC4155 seamlessly manages power distribution from two 5V sources, such as a USB port and a wall adapter, to a single-cell rechargeable Lithium-Ion/Polymer battery and a system load.
The LTC4155’s switching battery charger automatically limits its input current for USB compatibility, or may draw up to 3A from a high power wall adapter. The high efficiency step-down switching charger is designed to provide maximum power to the application and reduced heat in high power density applications.
..
