STWBC - ST Microelectronics

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

STWBC
Manufacturer

ST Microelectronics
ChipWorker Part#

CW58474696
Category

Battery Management IC
Package

VFQFPN-32
Description

STWBC Series 5.5V Digital Controller for Wireless Battery Charger - VFQFPN-32
Documentation

Datasheet

STWBC Global Supplier

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STWBC Specifications

Attribute	Attribute Value

Part Number	STWBC
Manufacturer	ST Microelectronics
ChipWorker Part#	CW58474696
Category	Battery Management IC
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	32 Pin
Case/Package	VFQFPN-32
Number of Outputs	1 Output
Output Power	5 W
Input Voltage (Max)	5.5 V
Input Voltage (Min)	3 V
Operating Temperature (Max)	105 ℃
Operating Temperature (Min)	-40 ℃
Input Voltage	5 V
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Size-Height	0.88 mm
Operating Temperature	-40℃ ~ 105℃
Product Lifecycle Status	Active
Packaging	Tray
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
ECCN Code	EAR99

Product Description

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.
**Key Features**
Digital controller for wireless battery charger transmitter
Multiple Qi certified and PMA standard compatible
Support for up to 5 W applications
Mobile
Wearable, sports gear, medical
Remote controllers
Native support to half-bridge and full bridge topologies
5 V supply voltage
2 firmware options
Turnkey solution for quick design
APIs available for application customization1
Peripherals available via APIs
ADC with 10 bit precision and 1 MΩ input impedance
UART
I2 C master fast/slow speed rate
GPIOs
Memory
Flash and E2 PROM with read-while-write (RWW) and error correction code (ECC)
Program memory: 32 KBytes Flash; data retention 15 years at 85 °C after 10 kcycles at 25 °C
Data memory: 1 KByte true data E2 PROM; data retention:15 years at 85 °C after 100 kcycles at 85 °C
RAM: 6 KBytes
Reference design features
2 layers PCBs
Active object detection
Graphical user interface for application monitoring
Evaluation boards
Operating temperature: -40 °C up to 105 °C
Package: VFQFPN32

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- Vacuum packed
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- Electrical testing
- Surface testing

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