[原创] IDT P9222－R低功率无线电源5W接收器解决方案

IDT公司的P9222－R是集成的单片低功率高达5W的无线电源接收器(Rx).器件接收从无线功率发送器如P9235A-RB WPC Qi BPP无线发送器IC发送的AC功率信号,把它转换成整流输出电压,可以用来给各种无线功率应用的功率器件或给电池充电器输入供电.P9222-R接收器(Rx)集成了高效率同步全桥整流器(SFBR)和用来发送信息包到发送器(Tx)的控制电路,以达到最佳的电源传输.器件包括超温和欠压/过压保护,内部的过压箝位保护整流输出不能高于过压设定的电平,特别是接收器快速从低耦合位置变换到高耦合位置时.器件还集成了32位ARM® Cortex®-M0处理器,提供高水平的编程性和设计参数,它能通过I2C接口或外接的EEPROM进行配置.P9222-R在轻负载是效率高,非常适合于低功耗应用如耳塞充电.独到的Ping检测特性使用户很容易连接无线充电器,并在电池充电终止时提高了热性能,而低欠压锁住(UVLO)阈值使得接收器能在很弱的数字Ping强度信号就能起动.P9222-R主要用在无线耳塞充电,可穿戴和健美跟踪,移动设备和助听器充电.本文介绍了P9222-R主要特性,框图和应用框图,以及WPC v1.2.4兼容无线功率发送系统框图,无线功率评估板P9222-R-EVK主要特性,电路图,材料清单和PCB设计图.

The P9222-R is an integrated single-chip wireless power receiver IC (Rx) for up to 5W applications. The device receives an AC power signal from a wireless power transmitter, such as the P9235A-RB WPC Qi BPP Wireless Transmitter IC, and converts it to a rectified output voltage, which can be used to power devices or supply the battery charger input in a wide range of wireless power applications. The receiver (Rx) integrates a high-efficiency synchronous full bridge rectifier (SFBR) and control circuits used to send message packets to the transmitter (Tx) in order to optimize power delivery.
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