STMicroelectronics STWBC86 Qi-Compatible Wireless Power Transmitter

STMicroelectronics STWBC86 Qi-Compatible Wireless Power Transmitter is a highly integrated monolithic solution for applications up to 5W. The STWBC86 features an integrated low-impedance full/half-bridge inverter, achieving high efficiency and low power dissipation.

The STMicro STWBC86 provides an I²C interface that enables the customization of firmware and platform parameters. Configuration of the device is through the embedded FTP. The STWBC86 can implement additional firmware patching to improve application flexibility.

The Flip Chip package and low BOM count make the STWBC86 suitable for very compact applications.

Features

WPC Qi 1.2.4 compatible Power Class 0 BPP
Power Tx reference design based on A11a topology
Up to 5W output power transfer on the receiver side
Wide input voltage range of 4.75V to 20V
Monolithic solution with integrated Half-bridge/Full-bridge inverter and drivers for high efficiency and low BOM
32-bit, 64MHz ARM Cortex microcontroller with 8KB SRAM
FTP (Few Times Programmable) for Firmware patching and advanced features

On-chip current sense
10-bit A/D converter
I²C interface
Fully configurable GPIOs
Accurate voltage/current measurements for FOD
Current limit and thermal protection
Robust ASK, FSK communication
Flip chip 72 bumps (3.26mm x 3.67mm)

Applications

Smartphone charging
Medical electronics
Smart wearable, hearable charging

STMicroelectronics STWBC86 Qi-Compatible Wireless Power Transmitter

Features

Applications

Block Diagram

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