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RT9467是适合便携式应用的开关模式单节锂离子/聚合物电池充电器,整合了同步 PWM 控制器、功率开关、输入电流检测、高精准度电压调节和充电终止电路,充电电流通过整合感测电阻器调节,支持 USB On-The-Go (OTG) 应用。RT9467整合了D+/D-引脚,用于USB主机/充电端口检测。RT9467以经过优化的控制策略进行不同模式下的充电速度调节,其模式包括预充模式及快充模式 (恒压与恒流),所有关键的充电参数均可经过 I2C 接口进行程序设计。充电结束以后的电池电压下将到默认的阈值以下时,RT9467会重启充电流程以弥补其电能损失。当外部电源移除以后,RT9467自动进入睡眠模式以降低电池消耗。它还具有欠压保护、过压保护、温度调节和反向漏电保护等功能。RT9467封装为 WQFN-24L 4x4。
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