IP6826 wireless charger

Based on the IP6826 wireless charging transmitter control SoC solution,
it is compatible with the latest WPC Qi v1.2.4 standard, supports A11, A11a, MP-A2 coils, and supports 5W, Apple 7.5W, Samsung 10W, and 15W.
Please check the attachment for more information on charging.
 
Progress: 2023.03.05 V1.0 board verification was successful and supports Huawei 10w+ fast charging.
 
The project introduction
is compatible with WPC v1.2.4 standard
5V input 5W applications;
9V input 5W, 7.5W, 10W applications;
12V input 5W, 7.5W, 10W, 15W applications.
Highly sensitive static foreign object detection (can be adjusted by capacitor)
Input overvoltage, overcurrent, undervoltage protection function
supports AFC, PD3.0 Input request
supports DPDM Fast charge input request
supports Qi protocol BPP, PPDE certification
supports NTC Overtemperature protection
 
PCB size It can be greatly reduced and adapted to the housing. If you need to reduce the size, please change the PCB frame along the coil.
The BOM is matched and the schematic diagram is used as the reference. It is recommended to use the 10u type coil. The reason why the size
 
of the open source protocol
CC-BY-NC-SA 3.0
 
project pictures
is enlarged is because it fits the color PCB that was previously proofed as a cover.
 
Note:
Regarding the resonant capacitor of the wireless charger, please use CBB capacitor (cheap, but large in size - used in this solution) or NP0 capacitor (expensive, but small in size - please use 1206 package).
The loop area between the resonant capacitor and coil and IP6826 needs to be as small as possible, and should be kept away from low-voltage signal traces such as LED, NTC, and IO.
The coil generates heat during normal operation, so please pay attention to providing good heat dissipation conditions.