The ST STWLC33 inductive wireless power receiver from MOZE greatly simplifies the implementation of dual-function handheld devices and improves the user experience, speeding up wireless charging and providing outstanding overall system efficiency. The STWLC33 is also the only ST The 15W receiver, which can act as a 3W transmitter, can charge another receiver using the same coil. The user can wirelessly charge one device while using the device to power the other. In addition, the STWLC33 is still the first in the market Batch can provide the output voltage is 2-cell lithium battery charger in a wireless receiver.
At the heart of the STWLC33 is a 32-bit 32 MHz Arm® Cortex®-M microcontroller with 32 KB of firmware / ROM memory and 8 KB of RAM. The STWLC33 integrates a low-impedance synchronous rectifier and a low-dropout linear regulator Low-power components, the overall system efficiency up to 80%.
STWLC33's patented help to improve the user experience includes active presence detection, which wakes up the system quickly when compatible devices are placed in the charging zone. The STWLC33 also has a special feature that enhances the FOD performance of metal-containing objects This detection feature automatically shuts off the power supply when the charger is too close to prevent overheating. Other features include a 32 MHz PWM timer, an eight-channel analog-to-digital converter (ADC), and configurable general purpose input and output (GPIO) .
ST's STWLC33 inductive wireless power receiver is ideal for very compact wireless applications including tablets, chargers, cell phones, medical devices and wearables. Designers can also integrate the STWLC33 receiver with STWBC-EP in high-speed, chargeable devices Wireless Charge Controller Transmitter The STWLC33 has a companion STEVAL-ISB042V1 evaluation board whose STWLC firmware allows engineers to modify parameters and settings to ensure the STWLC33 power receiver is properly integrated into the final application.