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RT1652 是符合 WPC Low Power V1.2 标准的无线电源接收器 IC,内部集成了同步全桥整流器、低压差调节器和完成控制和通讯的逻辑控制器,可接收来自兼容 WPC 标准的无线发送器发出的交流电源信号并提供可达 5W 的输出功率,可作为电源供应器为手机或消费类设备充电。RT1652 的输出亦可直接与锂离子电池连接并工作于直充模式以电池充电流程(预充电/定电流/定电压)对电池进行充电,简化充电系统的设计并带来充电效率的提升。RT1652 的逻辑控制器支持双向通讯,其中包括能以幅度键控调制方式向发送器发送信号。它也提供异物检测功能以符合 WPC V1.2 版本以后的要求,能将其接收到的功率信息反馈给发送器以供其判断是否有异物出现在磁接口上,提高了安全级别。RT162 能以可程控的方式动态调节整流器的输出电压以提高效率,使传输效率最大化。其电流限制可根据负载状况进行调节,可根据外接 NTC 电阻的反馈进行温度调节,还具有欠压闭锁保护、过压保护和过热保护等功能。
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