原标题：IDT P9038 Qi兼容5W发送器解决方案

　　IDT公司的P9038是集成了全桥逆变器的Qi兼容的8W无线功率发送器,具有WPC指标1.2.2,工作电压4.6V-6.9V,和接收器系列P902x组成完整的无线电源系统方案.P9038还提供电阻编程的外无检测(FOD),内置过流保护和可编的过压/超温保护.主要用在装备,PC外设,坚固耐用的电子齿轮,小型设备和电池供电的电子设备.本文介绍了P9038主要特性,功能框图和应用电路,以及评估板P9038-R-EVK 5W无线功率发送器参考设计主要特性,电路图,材料清单和PCB设计图.

　　The P9038 is a WPC-compliant Wireless Power Transmitterfor A5 and A11 designs operating from 5V suppliesconforming with WPC Specification 1.2.2. Operating in the WPC-compliant mode, the integrated full-bridge invertersupports 8W power transfer utilizing the P902x Receiverfamily, and ensures efficient switching with EMI/RFI emissionsthat are better than the requirements of the WPCspecification.

　　To safeguard the device and the system under faultconditions, the P9038 offers resistor programmable ForeignObject Detection, built-in Over-Current protection, andprogrammable Over-Voltage / Over-Temperature protection.

　　This transmitter is extremely easy to use and provides acomplete WPC-compliant solution with minimum externalparts count, requiring significantly less board space and lowertotal solution cost than competing products.

　　The P9038 is available in a compact 7 x 7 mm VFQFPNpackage, and it is rated for -40° to +85°C temperature range.

　　P9038主要特性:

　　• 4.5V to 6.9V input operating voltage range, supporting:

　　• USB or AC adapter

　　• USB dedicated charger port (DCP) detection

　　• WPC-1.2.2 compliant for A5 or A11-type coils

　　• Integrated, high-efficiency power stage with low RDS(ON)

　　• Integrated foreign object detection & current sense

　　• Excellent EMI performance eliminates need for EMI filter

　　• Supports up to 8W power transfer to the receiver

　　• Demodulates and Decodes Communication Packets fromWPC-compliant Receivers

　　• I2C Interface for EEPROM access

　　• Programmable input over-voltage protection

　　• Programmable soft start

　　• Current limit and over-temperature protection

　　• -40° to +85°C temperature range

　　• 7 x 7 mm 56-VFQFPN package

　　P9038应用:

　　• Furniture

　　• PC peripherals

　　• Rugged electronic gear

　　• Small appliances

　　• Battery-powered electronics

　　评估板P9038-R-EVK 5W无线功率发送器参考设计

　　The P9038-R-EVK is a turnkey 5 Watt, Qi-compliant wireless power transmitter reference kit for fast prototyping and design integration. The kit consists of an easy-to-use reference board and comprehensive support collateral that significantly eases design-in effort and minimizes time-to-market.

　　An associated layout module enables direct instantiation on to a system board, while an optimized and fully-tested Bill-of-Materials (BOM) takes the guess-work out of component selection. The P9038-based solution is well-suited for a wide range of applications, including PC peripherals, furniture, medical devices, and other portable devices still hindered by traditional contact-based charging bases or cables.

　　P9225-R-EVK

　　Wireless Power Receiver Evaluation Kit for P9225-R

　　The P9225-R-EVK is a turnkey 5 Watt, wireless power receiver kit supporting both WPC and PMA standards. The kit consists of an easy-to-use reference board and comprehensive support collateral that significantly eases design-in effort and minimizes time-to-market.

　　An associated layout module enables direct instantiation on to a system board, while an optimized and fully-tested Bill-of-Materials (BOM) takes the guess-work out of component selection. The P9225-R based solution is well-suited for a wide range of applications such as medical devices, and other portable devices still hindered by traditional contact-based charging bases or cables.

　　Need a wireless power transmitter too? See the P9038-R-EVK.

　　Features

　　70mm² total PCB area

　　Supports up to 5W power transfer

　　WPC-1.2.4 compliant, PMA SR1 compatible

　　Programmable output voltage: 4.5V to 5.5V

　　Patented over-voltage protection clamp eliminating external capacitors

　　Embedded 32-bit ARM® Cortex®-M0 processor

　　Compact form factor for fast prototyping

　　Layout module provided for direct copy and paste to system board

　　Optimized PCB reference layout and fully-tested BOM (check BOM)

　　Supported by extensive library of digital support collateral

　　评估板P9038-R-EVK主要特性:

　　WPC 1.1.2 (Qi) compliant for interoperability w/ other devices

　　Compact form factor for fast prototyping

　　Layout module provided for direct copy to system board

　　2-layer PCB reference layout and fully-tested BOM (check BOM)

　　4.5 V to 6.9 V input, designed for 5 W output on the receiver side

　　Integrated power stage for low BOM / mfg. cost and small PCB area

　　Input in-rush control prevents surges with inexpensive power adapters

　　High-quality transmitter coil by Wurth Elektronik (learn more)

　　Kit contains: reference board and USB cable

　　See the P9038 on SchemeIt™ online schematic drawing tool

　　Supported by extensive library of digital support collateral (see below)

　　评估板P9038-R-EVK包括:

　　• One fully-assembled P9038-R-EVK reference board

　　• USB to Micro USB cable

　　• Application notes, datasheets, manuals, guides, videos,layout files, and other digital resources can be found at:idt.com/P9038-R-EVK

　　图.评估板P9038-R-EVK外形图

　　评估板P9038-R-EVK材料清单:

　　详情请见:

IDT_P9038-R-EVK-Manual_MAR_20150923.pdf

IDT_P9038-Datasheet_DST_20160801.pdf