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RT9748 是供电池充电使用的 6A 智能开关,内含驱动负载开关的电荷泵电路、输入/输出端电流/电压调节系统和全面的硬件保护设计,它也通过高精度的模拟数字转换器对电流、电压进行测量并通过 I2C 接口进行电池充电参数的上报,用户可通过软件进行 3 种方式的保护和标志设定。
用电荷泵驱动背靠背连接的 N-FET 负载开关
4 路恒流、恒压调节► ICR 输入电流调节► OVR 输出电压调节► BVR 电池电压调节► BCR 电池电流调节
5 种硬件保护设计► VBUS 过压保护► 输入、输出压差超限保护► 反向电流超限保护► 结温过高保护► 输入过流保护
10 通道、12 位 ADC► 高精度► 全部用于电压、电流测量► 各通道用 8/16 次采样数据的平均值作为结果输出
3 种软件实现的保护措施► 输入、输出压降保护预警► VBUS 过热保护► BAT 过热保护
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