Advanced Wireless-Charging Chip from STMicroelectronics Enables Faster Charging of Smartphones and Tablets

 

STMicro Wireless Charging Chip_IMAGE.jpg
STMicro Wireless Charging Chip_IMAGE


  • New charging controller supports the latest industry standard (Qi Extended Power) for faster charging of smartphones and tablets
  • Patented detection and safety features, with best-in-class standby power, ensure superior user experience and efficiency

 

Geneva, November 9, 2017 - STMicroelectronics (NYSE: STM), a global semiconductor leader serving customers across the spectrum of electronics applications, is powering up wireless charging for mobile devices by introducing one of the world's first chips to support the latest industry standard for faster charging.

Nowadays, people are using their smartphones and tablets so intensively that many need to top up battery power several times a day. With wireless charging, users don't need to carry the charger or a bulky power bank, and can charge their electronic devices as fast as with a cable. Major mobile manufacturers are committing to wireless charging by joining the industry alliances and launching compatible products.

Users on the move, who put their mobiles down to charge for a few minutes - say, during a break or in a meeting -- need the device to be ready to go again when they are. To enable this, the Wireless Power Consortium (WPC) that manages the Qi specification -- a widely adopted industry standard -- has introduced the Extended Power profile for faster charging. By raising the maximum charging power from 5W to 15W, this new profile enables devices to be charged up to three times more quickly.

One of the market's first wireless-charging controllers to support Qi Extended Power, ST's STWBC-EP combines best-in-class energy efficiency, consuming just 16mW in standby and able to wirelessly transfer more than 80% of the total input power, with unique features created by ST to enhance the user experience. These include a patented solution enhancing active presence detection to wake the system quickly when a compatible object is presented for charging. The patented technology also enhances the performance of Foreign Object Detection (FOD), to cut power and prevent overheating if objects containing metals are brought too close to the charger. Other unique innovations enhance power control and energy transfer to maximize efficiency and ease of use.

"ST's Advanced Wireless-Charging chip enables manufacturers to create new, high-power products that offer superior features and efficiency," said Domenico Arrigo, General Manager, Industrial and Power Conversion Division, STMicroelectronics. "The Qi Extended Power support dramatically shortens charging time and our patented detection and safety innovations greatly improve safety and ease of use."

The STWBC-EP provides the level of integration allowing to simplify charger design while providing the flexibility to work with supply voltages ranging from 5V USB power up to 12V.

To help accelerate time to market for product developers, ST has created an associated reference design with a Qi 15W ready-built transmitter board and documentation to get started. ST also has a 15W receiver chip (STWLC33) for use in high-speed chargeable devices, which developers can use to complete their applications.

ST's new wireless-charging chip will be showcased at the Qi Wireless Power Developers Conference and Tradeshow held in San Francisco on November 16-17.

The STWBC-EP is available now, as a 32-lead QFN (5mm x 5mm) device, priced from $3.175 for 1000 pieces.

For further information refer to www.st.com/wbc

 

Technical Notes for Editors:

The STWBC-EP contains a step-up (boost) DC/DC converter and a controller, with the Qi charging algorithms already implemented in firmware to save any need to integrate software and an additional microcontroller in their designs. Together, the converter and controller generate the input power and the control signals for an external half-bridge power stage that drives the charging transmitter antenna. This architecture gives designers flexibility to optimize the external half bridge and its associated gate drivers for use with any supply voltage from 5V to 12V, and to ensure compatibility with USB quick chargers.

The evaluation kit, STEVAL-ISB044V1, includes a 15W Qi MP-A10 reference design, 12V 2A AC/DC adapter, a USB/UART dongle for connection to the PC and USB cable, as well as pre-loaded firmware. In addition to the supporting documentation, a graphical PC-based configuration tool is also provided to help customize settings.

 

About STMicroelectronics

ST is a global semiconductor leader delivering intelligent and energy-efficient products and solutions that power the electronics at the heart of everyday life. ST's products are found everywhere today, and together with our customers, we are enabling smarter driving and smarter factories, cities and homes, along with the next generation of mobile and Internet of Things devices.

By getting more from technology to get more from life, ST stands for life.augmented.

In 2016, the Company's net revenues were $6.97 billion, serving more than 100,000 customers worldwide. Further information can be found at www.st.com

For Press Information Contact:

STMicroelectronics
Michael Markowitz
Director of Technical Media Relations
+1 781 591 0354
michael.markowitz@st.com

Attachments:

A photo accompanying this announcement is available at http://www.globenewswire.com/NewsRoom/AttachmentNg/5454eef6-97f7-4640-aaf0-1b89e63e9794

Attachments:

http://www.globenewswire.com/NewsRoom/AttachmentNg/b1eb3c87-4fd1-4ab2-9d55-f09b44cbf08e




Review Article Be the first to review this article
Aldec

 True Circuits: Ultra PLL

Featured Video
Latest Blog Posts
Anupam BakshiAgnisys Automation Review
by Anupam Bakshi
Automation of the UVM Register Abstraction Layer
Bob Smith, Executive DirectorBridging the Frontier
by Bob Smith, Executive Director
Virtual 2020 CEO Outlook Set for June 17
Colin WallsEmbedded Software
by Colin Walls
Multiple constructors in C++
Jobs
Senior Layout Engineer for EDA Careers at EAST COAST, California
Senior Analog Design Engineers #5337 for EDA Careers at EAST COAST, California
Senior Application Engineer Formal Verification for EDA Careers at San Jose and Austin, California
Software Engineer for EDA Careers at RTP, North Carolina
Upcoming Events
Sensors Expo & Conference at McEnery Convention Center 150 W. San Carlos Street SAN JOSE CA - Jun 22 - 24, 2020
Nanotech 2020 Conference and Expo at National Harbor MD - Jun 29 - 1, 2020
IEEE Computer Society Annual Symposium on VLSI (ISVLSI) 2020 at Limassol Hotel, Amathus Area, Pareklisia Cyprus - Jul 6 - 8, 2020
57th Design Automation Conference 2020 at San Francisco CA - Jul 19 - 23, 2020



© 2020 Internet Business Systems, Inc.
25 North 14th Steet, Suite 710, San Jose, CA 95112
+1 (408) 882-6554 — Contact Us, or visit our other sites:
AECCafe - Architectural Design and Engineering TechJobsCafe - Technical Jobs and Resumes GISCafe - Geographical Information Services  MCADCafe - Mechanical Design and Engineering ShareCG - Share Computer Graphic (CG) Animation, 3D Art and 3D Models
  Privacy PolicyAdvertise