December 11, 2012
New chipset with two-coil transmitter offers WPC Qi™ technology and design efficiencies allowing mobile product placement anywhere on the battery charging pad
SAN JOSE, Calif., — Toshiba America Electronic Components, Inc. (TAEC)*, a committed leader that collaborates with technology companies to create breakthrough designs, today announced its free positioning wireless charging chipset consisting of a high-efficiency power transmitter and receiver for charging smartphones and other mobile products anywhere on the battery charging pad.
The Toshiba chipset is fully compliant with the Wireless Power Consortium (WPC) Qi interface specification, A4, A8, A12 and A14. It includes the TB6865FG power transmitter and TB6860WBG receiver and features a two-coil control architecture for cost-effective battery charging. The position of a mobile device is detected by the TB6865FG and only one of the coils is energized for charging, thereby preserving efficiency and allowing product freedom of placement. As a result, end users can place a Qi-capable mobile product on a Qi-compliant charging surface and achieve up to 74 percent efficiency across a majority1 of the charging area. In addition, the design flexibility of the TB6865FG allows the control of two coils, so two mobile products can be charged simultaneously.
Toshiba's new chipset is built with the company's microcontroller and analog IC technology and features high levels of integration to reduce component count, board space and cost in wireless charging applications. The TB6865FG transmitter integrates both microcontroller and analog elements including PWM circuitry, switching control, on-board filter and a pre-driver circuit. The TB6860WBG receiver combines modulation and control circuitry with a rectifier power pickup, built-in high-performance DC-DC buck converter and protection functions.
The TB6860WBG offers a programmable charging profile via I2C control. The latter provides an integrated DC-DC converter for high-efficiency, high-current charging with a charge current of up to 1.2A. Integrated protection for the receiver IC covers input voltage, output current and over-temperature conditions.
The TB6865FG is supplied in a LQFP100 14mm x 14mm package while the TB6860WBG is supplied as a WCSP39 4.25mm x 2.65mm device.
Toshiba has been a member of the WPC since it joined the consortium in 2011. In addition to wireless charging solutions built around inductive coupling, the company is also actively involved in research to develop commercial solutions that extend charging distances through the use of resonance coupling .
The Toshiba power transmitter and receiver chipset, TB6865FG and TB6860WBG, for free positioning wireless charging will begin sampling in the first quarter of 2013. Pricing for the TB6865FG is $5.00 and the TB6860WBG is priced at $3.00.
Through proven commitment, lasting relationships and advanced, reliable electronic components, Toshiba enables its customers to create market-leading designs. Toshiba is the heartbeat within product breakthroughs from OEMs, ODMs, CMs, distributions and fabless chip companies worldwide. A committed electronic components leader, Toshiba designs and manufactures high-quality flash memory-based storage solutions, discrete devices, displays, advanced materials, medical tubes, custom SoCs/ASICs, imaging products, microcontrollers and wireless components that make possible today's leading cell phones, MP3 players, cameras, medical devices, automotive electronics and more.
Toshiba America Electronic Components, Inc. is an independent operating company owned by Toshiba America, Inc., a subsidiary of Toshiba Corporation, Japan's largest semiconductor manufacturer and the world's third largest semiconductor manufacturer Gartner, 2010 WW Semiconductor Revenue, March 2012). Toshiba Corporation was founded in 1875 and today has over 554 subsidiaries and affiliates, with 210,000 employees worldwide. Visit Toshiba's web site at www.toshiba.co.jp/index.htm.
1Rated efficiency can be achieved except at the four edges of the charging pad and within few millimeters above the charging pad
Information in this press release, including product pricing and specifications, content of services and contact information, is current and believed to be accurate on the date of the announcement, but is subject to change without prior notice. Technical and application information contained here is subject to the most recent applicable Toshiba product specifications. In developing designs, please ensure that Toshiba products are used within specified operating ranges as set forth in the most recent Toshiba product specifications and the information set forth in Toshiba's "Handling Guide for Semiconductor Devices," or "Toshiba Semiconductor Reliability Handbook."
Qi is a trademark of the Wireless Power Consortium
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