The STWBC is the digital controller for wireless battery charger (WBC) transmitters (TX) from STMicroelectronics, offering the most flexible and efficient solution for controlling power transfer to a receiver (RX) in WBC-enabled applications such as phones, wearables, and other battery powered devices that use electromagnetic induction for recharging.
As a member of the Qi Wireless Power Consortium and the PMA (Power Matters Alliance), ST ensures full compatibility with these leading wireless charging protocols and holds certification for the Qi 1.1.2 A11 standard.
The STWBC performs all the functions for transmitter control: thanks to the internal 96 MHz clock and supporting both half-bridge and full bridge topologies, it is able to precisely control the amount of transmitted power to match the requirements of the receiving unit in terms of maximizing the efficiency of the power transfer.
The STWBC comes with firmware options to offer customers the ability to personalize their end product without the need of external microcontrollers:
A turnkey Qi 1.1.2 A11 certified solution, fully interoperable with Qi enabled mobile phones.
API (application programming interface) access to customize the underlying firmware, for example modifying the behavior of the LEDs or GPIOs in response to the receiver behavior and supporting I²C and UART communication within a network.
The STWBC Qi 1.1.2 A11 certified solution is available in the STMicroelectronics STEVAL-ISB027V1 reference design, intended for all Qi compatible receivers such as in Qi enabled mobile phones.
In the reference design the STWBC integrates the foreign object detection (FOD): the digital feedback between TX and RX units allows the detection of metal objects close to the receiver that could result in potential hazards, enabling the STWBC to stop power transmission when such objects are detected.
The reference design is offered together with a complete ecosystem to support customers in building their applications, including the Qi 1.1.2 A11 certified board (STEVAL-ISB027V1), API libraries and documentation to develop software customizations, as well as a comprehensive graphical user interface to monitor real-time performance and diagnostics.
|DS10790: Digital controller for wireless battery charger (WBC) transmitters Qi 1.1.2 A11 certified, PMA compatible||3.1||1 MB|
|STWBC Wireless battery charger||09.2017||1 MB|
|Brochure Power management guide||10.2018||4 MB|
|ST-LINK/V2||ST||ST-LINK/V2 in-circuit debugger/programmer for STM8 and STM32|
|IAR-EWSTM8||IAR||IAR Integrated development environment and optimizing C compiler for STM8|
|Wireless Power Transfer||WURTH ELEKTRONIK||Wurth Elektronik Wireless Power Coils offer the best performance with highest Q-factor and lowest RDC values.|
|STSW-ISB027FW||ST||Firmware for STEVAL-ISB027V1 QiA11 wireless power transmitter evaluation board based on STBWC|
|STSW-STWBCFWDT||ST||STWBC firmware downloader tool|
|STSW-STWBCGUI||ST||Graphical user interface for wireless power transmitter evaluation boards based on the STWBC chip family|
|STEVAL-ISB027V1||ST||Qi A11 wireless charger transmitter evaluation board based on STWBC|
|Contract Design for Manufacturing||LACROIX Electronics||CDM consists in the full design, industrialization and manufacturing of an electronic product performed by LACROIX Electronics teams for manufacturers.|
|Design for eXcellence||LACROIX Electronics||DfX refers to all methods and tools used by LACROIX Electronics to carry out the advanced industrialization of an electronic assembly or sub-assembly.|
|Electronics Manufacturing Services||LACROIX Electronics||LACROIX Electronics supports manufacturers in their electronics subcontracting projects and offers a complete manufacturing and testing service.|
|Evatronix Electronic Design Services||Evatronix||We deliver embedded design services in the fields of electronic and mechanical hardware as well as embedded software.|
|Part Number||Marketing Status||Package||Grade||ECCN (US)||Unit Price (US$) *||Quantity||Country of Origin||Operating Temperature (°C) (max)||Operating Temperature (°C) (min)||Output Power (W) (typ)||More info||Order from ST||Order from Distributors|
|STWBC||Active : Product is in volume production||VFQFPN 32 5x5x1.0||Industrial||3A991A2||2.875||1000||PHILIPPINES||105||-40||5||MORE INFO||Buy Direct Add to cart||DISTRIBUTOR AVAILABILITY|
|STWBCTR||Active : Product is in volume production||VFQFPN 32 5x5x1.0||Industrial||3A991A2||2.875||1000||PHILIPPINES||105||-40||5||MORE INFO||DISTRIBUTOR AVAILABILITY|
|Part Number||Marketing Status||Package||Grade||RoHS Compliance Grade||Material Declaration**|
|STWBC||Active||VFQFPN 32 5x5x1.0||Industrial||Ecopack2|
|STWBCTR||Active||VFQFPN 32 5x5x1.0||Industrial||Ecopack2|
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.