STWLC99 Inductive Wireless Charger Power Receiver

Product Highlights > STWLC99 Inductive Wireless Charger Power Receiver

            STWLC99 Inductive Wireless Charger Power Receiver
                    STMicroelectronics' Qi-compliant inductive wireless charger power receiver is designed for 100 W applications
    

Image of STMicroelectronics STWLC99 Inductive Wireless Charger Power Receiver STMicroelectronics' STWLC99 is a highly integrated wireless power receiver suitable for applications delivering output power up to 100 W. The chip has been designed to support Qi specifications 1.2.4 and 1.3 for inductive communication protocol with Extended Power Profile (EPP) and proprietary ST Super Charge (STSC) protocol for fast charging.

With an integrated low-loss synchronous rectifier and low drop-out linear regulator, STWLC99 achieves high efficiency with low power dissipation. Through the I²C interface, the user can access and modify the configuration parameters for customized applications. The final configuration parameters are stored in embedded Few Times Programmable (FTP) non-volatile memory and automatically retrieved at power-up.

The device can also operate as a wireless transmitter up to 25 W (coil dependent). The device is housed in a chip-scale package to fit real-estate applications with reduced BOM count.

Features

Up to 100 W output power
Up to 25 W output power in Tx mode
Qi 1.2.4 and 1.3 compliant
Integrated low R_DS(ON) synchronous rectifier with ≥98% efficiency
Adaptive rectifier configuration (ARC) mode for spatial freedom
Low drop-out linear regulator with output current and input voltage loops
Programmable output voltage: 4 V to 20 V in steps of 25 mV
64 Mhz 32-bit Arm® Cortex®-M0+ core with 12 KB FTP, 8 KB RAM, 48 KB ROM
11-bit A/D converter
Configurable GPIOs

I²C primary, secondary interface
Watchdog timer
Multi-level ASK modulator; enhanced FSK demodulator
Accurate current sense system for foreign object detection (FOD)
Coil Q-factor measurement for FOD in Tx mode
Overvoltage, overcurrent, and thermal protections
Proprietary protocol for power negotiation and authentication
Suitable for industrial applications, power tools, autonomous robots
Flip chip 121 bumps (4.859 mm x 4.859 mm)