The TS81001 from Semtech is a wireless power receiver IC and control unitthat supports systems up to 40 watts. This chipset is fully compliant with the latest Wireless Power Consortium (WPC) Qi specification and PMA specification.
The TS81001 supports indirect (fixed voltage) and single or multi-cell battery charging applications. It performs the necessary coding of packets to send commands to the transmitter to adjust the power level accordingly. This wireless charging IC supports I2C interface and is available in 20 pin 3 x 3 QFN package.