[原创] IDT P9221－R 15W无线电源接收解决方案

IDT公司的P9221-R是高度集成WPC-1.2.2兼容的15W无线电源接收器,采用磁感器充电技术,接收器把谐振回路的交流(AC)电源转换成电压9V和12V的稳压DC输出.接收器包括一流的32位ARM® Cortex®-M0处理器,和发送器P9242-R一起可组成完整的无线电源系统(15W),DC对DC效率高达87%,支持I2C接口,主要用在快充手机,平板电脑,电源配件和医疗电子.本文介绍了P9221-R主要特性,功能框图,应用电路以及15W评估板P9221-R-EVK主要特性,电路图,材料清单和PCB设计图.

The P9221-R is a high efficiency, Qi-compliant wireless powerreceiver targeted for applications up to 15W. Using magneticinductive charging technology, the receiver converts an AC powersignal from a resonant tank into a regulated DC output voltagesetting with 9V and 12V. The integrated, low RDS (ON) synchronousrectifier and ultra-low dropout offer high efficiencymaking the product ideally suited for battery-operated applications.

The P9221-R includes an industry-leading 32 bit ARM® Cortex®-M0 processor offering a high level of programmability. In addition,the device features proprietary alignment guide information foroptimum coupling between the receiver and the transmitter, aprogrammable current limit, and a patented over-voltage protectionscheme eliminating the need for additional capacitorsgenerally used by the receivers, minimizing the external

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