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