The P9415-R from Renesas is a Wireless Power Transmitter/Receiver IC (TRx) that can be configured to receive or transmit an AC power signal through magnetic induction. It is based on WattShare technology that can enable the receiving device to also be used as a wireless charging hub.
When the device is configured as a wireless power transmitter, it uses an on-chip full/half-bridge inverter, a PWM generator, a modulator/demodulator for communication, and a microcontroller to produce an AC power signal to drive the external L-C tank. As a receiver, the P9415-R receives an AC power signal from a wireless transmitter and converts it into rectified output voltage, which can be used to power devices or supply the charger input in mobile applications. It delivers as a 15 W of power as a receiver. The P9415-R integrates a high-efficiency Synchronous Full Bridge Rectifier and control circuitry to modulate the load to send message packets to the Transmitter (Tx) to optimize power delivery.
This highly-integrated single-chip IC features Multiple-time programmable (MTP) non-volatile memory that enables customers to customize the design parameters such as default output voltage and FOD thresholds.
The P9415-R includes over-temperature and voltage protection. Fault conditions associated with power transfer are managed by an industry-leading 32-bit ARM® Cortex®-M0 processor offering a high level of programmability while consuming extremely low standby power. The processor can also control GPIOs to indicate operating and fault modes. The device is available in an ultra-small 53-WLCSP package that measures 2.82 x 4.22 x 0.50 mm and is an ideal wireless power solution for a wide range of mobile devices and accessories.
