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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 I<sup>2</sup>C 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。
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<div class="spec-list"><ul class="lv1"><li>用电荷泵驱动背靠背连接的 N-FET 负载开关 </li><li>4 路恒流、恒压调节 <ul class="lv2"> <li></li><li>ICR 输入电流调节 </li><li>OVR 输出电压调节 </li><li>BVR 电池电压调节 </li><li>BCR 电池电流调节 </li></ul> </li><li>5 种硬件保护设计 <ul class="lv2"> <li></li><li>VBUS 过压保护 </li><li>输入、输出压差超限保护 </li><li>反向电流超限保护 </li><li>结温过高保护 </li><li>输入过流保护 </li></ul> </li><li>10 通道、12 位 ADC <ul class="lv2"> <li></li><li>高精度 </li><li>全部用于电压、电流测量 </li><li>各通道用 8/16 次采样数据的平均值作为结果输出 </li></ul> </li><li>3 种软件实现的保护措施 <ul class="lv2"> <li></li><li>输入、输出压降保护预警 </li><li>VBUS 过热保护 </li><li>BAT 过热保护 </li></ul> </li></ul></div>
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<div class="spec-list"><ul class="lv1"><li>手持式产品 </li><li>便携式媒体播放器 </li></ul></div>
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