Project IP6805S: QI standard 5W wireless solution

Overview of IP6805S highly integrated 5W wireless charging transmitter controller
IP6805S is a wireless charging transmitter control SoC chip, compatible with WPC standards, supports A11 or A11a coils, and supports 5W
charging.
IP6805S 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 IP6805S 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.
IP6805S integrates a full-bridge drive circuit and power MOS on-chip,
and integrates a voltage & current two-way ASK communication demodulation module; the solution has
high integration, 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 80%
 adaptive charging current regulation (DPM)
 Support charger BOM as low as 5V 500mA
 Minimalist
 integrated NMOS Full-bridge driver and full-bridge power MOS
 integrated voltage demodulation
 Integrated current demodulation
 Multiple protections, high reliability
 Input overvoltage, undervoltage, overcurrent protection
 NTC Overtemperature protection
 ESD 4KV
 input withstand voltage up to 12V
 status indication
 supports up to 2 LED lights to display
 various charging status indications
 Firmware upgrade
 OTP memory
 supports single burning
 
application
 wireless charging base