5W wireless charging solution based on Yingjixin IP6825

 
 



 
Introduction:
IP6825 is a wireless charging transmitter control SoC chip, compatible with the latest WPC Qi standard, supports A11 or A11a coils, and supports 5W charging.
IP6825 detects the wireless charging receiver through Analog Ping, and establishes communication with the wireless charging receiver through Digital Ping. After the communication is successful, power transmission begins.
The IP6825 decodes the communication packets sent from the receiver and then uses a PID algorithm to change the oscillation frequency to adjust the output power on the coil. The IP6825 terminates power transfer once the battery on the receiver is fully charged.
IP6825 integrates a full-bridge drive circuit and power MOS on-chip, and integrates a voltage & current two-way ASK communication demodulation module; the solution is highly integrated, which can significantly reduce the solution size and BOM cost.
Features
compatible with WPC standard
supports 5W application
supports FOD foreign object detection function
highly sensitive static foreign object detection
supports dynamic FOD detection
low power consumption, high efficiency
static current 4mA
low power consumption automatic detection
measured system charging efficiency up to 78%
adaptive charging current regulation (DPM)
Compatible with all adapters on the market Support charger BOM
as low as 5V 500mA Minimalist integrated NMOS full-bridge driver and full-bridge power MOS integrated internal voltage demodulation Integrated internal current demodulation Multiple protections, high reliability input overvoltage, overcurrent protection NTC Over-temperature protection ESD 4KV input withstand voltage up to 16V Status indication supports up to 2 LED lights to display various charging status indicators Firmware upgrade OTP Memory supports single programming Compatible with NPO capacitors and CBB Capacitor package 3 mm × 3 mm 0.5pitch QFN16 application back Clip, wireless charging base , car wireless charging equipment, wireless mobility