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Mingjiada Electronics supplies the original STWLC99JR in line with Qi standard inductive wireless charging power receiver chip

Overview:

The STWLC99 is a highly integrated wireless power receiver chip for applications with output power up to 100 W. The chip is designed to support the Qi 1.3 inductive communication protocol specification, as well as the Fast Charge Extended Power Profile (EPP) and ST's proprietary Supercharge (STSC) protocol.

STWLC99 built-in low loss synchronous rectifier and low voltage drop linear regulator for high efficiency and low power consumption.

The user can access and modify the configuration parameters of the custom application through the I2C interface, and the final configuration parameters are stored in the built-in finite subprogrammable (FTP) non-volatile memory and automatically retrieved at power-on.

The device can also be used as a wireless transmitter with transmission power up to 25 W (depending on the coil used)

The device is packaged on a chip scale and is suitable for space-limited applications, effectively reducing the amount of material.

Features

Output power up to 100 W

Output power up to 25 W in transmit mode

Comply with Qi 1.3 standard

Integrated low RDS-ON synchronous rectifier, efficiency ≥ 98%

ARC (Adaptive Rectifier Configuration) mode for improved spatial freedom

Low voltage drop linear regulator with output current and input voltage control loop

Programmable output voltages ranging from 4V to 20V (25 mV steps)

64 MHz 32-bit Arm® Cortex®-M0+ core, 12 KB FTP, 8 KB RAM, 48 KB ROM

11 bit A/D converter

GPIO can be configured

I2C Main interface and secondary interface

Watchdog timer

Multistage ASK modulator, enhanced FSK demodulator

Accurate current detection system for foreign object detection (FOD)

Coil quality factor measurement can be performed in the emission mode to achieve FOD

Over voltage, over current and over heat protection

Power negotiation and validation of proprietary protocols

Suitable for industrial applications, power tools, autonomous robots

121 Bump flip chip (4.859 mm x 4.859 mm)

Applications

• Smartphones, tablets, laptops

• Cordless power tools

• Mobile power supply