概览

描述

The P9261 is a highly integrated, magnetic induction wireless power transmitter controller supporting the WPC Qi specifications or proprietary applications. The P9261 functions with multiple coils in a full-bridge or half bridge inverter configuration.

The P9261, which includes an industry-leading 32-bit ARM® Cortex®-M0 processor, offers a high level of programmability and extremely low standby power consumption. The transmitter generates power through the power coil, detects the presence of a wireless power receiver, decodes the communication packets from the receiver, and adjusts the transmitted power by controlling the voltage based on feedback from the receiver. The transmitter will enable the power receiver to output 15W if the bidirectional communication protocol can be established, or the power receiver will output only 5W for a standard 5W power receiver.

The transmitter detects if a foreign metal object is placed on the transmitter coil. To safeguard the device and the system under fault conditions, the P9261 includes input under-voltage, input overvoltage, output short-circuit, and over-temperature protection.

The microcontroller empowers the user to customize features such as LED patterns, foreign object detection (FOD) threshold settings, or the over-temperature threshold. The device supports the I2C serial interface protocol, which enables the user to control the basic parameters, such as operating mode, switching frequency, input current, and input voltage.

The P9261 is available in a lead-free, space-saving 7 × 7 mm, 48-QFN wettable flank RoHS-compliant package. The product is rated over the operating temperature range of -40ºC to +105ºC.

特性

  • AEC-Q100, grade 2 qualified for automotive applications
  • EMI/EMC performance meets the CISPR-25 specification
  • Supports up to 15W wireless power receivers
  • Wide input voltage range: 4.25V to 21V
  • Fixed frequency and duty cycle wireless power topology
  • WPC 1.2.4 compliant and will support future WPC compatibility; supports multi-coil configurations
  • Embedded 32-bit ARM® Cortex®-M0 processor (trademark of ARM, Ltd.)
  • OTP program memory; also supports external flash memory
  • Supports I2C and SPI interfaces
  • Integrated drivers for external power FETs and current voltage sensing
  • Low standby power
  • Integrated step-down switching regulator for internal blocks to increase overall efficiency
  • Advanced foreign objects detection (FOD) and Q-factor function
  • Supports LEDs for status indication and alignment aid
  • Over-current, over-voltage, and over-temperature protection
  • Dedicated remote temperature sensing

应用

文档

文档标题 类型 日期
PDF187 KB
数据手册 - 简易格式
PDF731 KB
应用文档
PDF692 KB
应用文档
PDF3.23 MB
应用文档
PDF2.39 MB
数据手册
PDF160 KB
End Of Life Notice
PDF627 KB
白皮书

设计和开发

软件与工具

软件下载

文档标题 类型 日期
PDF160 KB
End Of Life Notice
ZIP981 KB
软件和工具 - 软件
XLSX38 KB
软件和工具 - 软件

开发板与套件

开发板与套件

模块

支持

视频和培训

汽车舱内无线充电

使用专为汽车应用设计的瑞萨无线电源发射器,在车辆中更加安全、便捷地为移动设备充电。

视频笔录

我的名字是 Laurence McGarry,就职于瑞萨电子无线电源部门,我来为大家介绍汽车舱内无线充电发射器。

我们试图解决的一个主要挑战就是便利性。 我们一直努力最大化放置的便利性,确保您在步入汽车,就能直接将您的智能手机或智能设备放在汽车舱内的无线充电发射器上,随后立即开始充电。

其次,这还有一个利于驾驶安全的方面。 假如您自己在下雨的夜晚驾车,如果您的周围有很多复杂的连接器和连接线,那么很容易出现事故。 因此,方便且安全地放置无线充电发射器的概念能够减少驾车人员分神,提高安全性。

本演示可让用户直观了解无线充电器的工作原理。 您可以看到只需将智能手机放置在发射器表面,就能立即开始充电。

P9261 器件的关键优势在于,它是一个单芯片系统集成器件,专用于无线充电,因此具备极高的集成度。 它还包含一个 M0 Arm核,能够实现极高的灵活性。

整套交钥匙解决方案还包括客户参考设计或参考板,兼容 15 W 无线充电 Qi 标准。 所有辅助材料在线提供,方便客户复制粘贴参考设计,从而获得汽车发射器的强大起点。 该器件兼容最新的 Qi EPP 15 W 以及所有最新的专有模式标准。