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15W wireless power receiver chip compliant with Qi v1.2

Posted: 16 Nov 2015     Print Version  Bookmark and Share

Keywords:Toshiba  power receiver  WPC  wireless transmitter 

Toshiba Corp. has introduced what it boasts as the industry's first wireless power receiver IC with the capability to receive 15W and compliant with Qi v1.2 defined by the Wireless Power Consortium (WPC). The TC7766WBG meets wireless charging times that match or surpass wired charging times, as it triples the received power capability of Toshiba's current product by increasing the rectified voltage without any change in package size, noted the company.

It is suitable for a range of applications including mobile devices such as smartphones and tablets, and industrial devices.

The IC includes all required functions, including rectifier circuits and controllers needed to construct a standalone wireless power transfer RX system. Toshiba's original cutting-edge CD-0.13 process realises a small package and high efficiency, making system integration easy and securing a receiver system with a small footprint.

TC7766WBG

A wireless receiver system using the IC is compatible with a 5W transmitter system using Toshiba's 5W transmitter IC TB6865AFG that is in mass production. In combination with a 15W wireless transmitter system compliant with the Qi v1.2 standard that is under development, the receiver system can receive up to 15W. It supports maximum output current of 1.7A and output voltage settings of 5V to 14V.

A receiver side host controller can exchange information with a compatible transmitter and access TC7766WBG's operation status registers via an I2C interface. This can, for example, allow users to be notified of the wireless charging status in the display of a mobile device.

TC7766WBG block diagram

The TC7766WBG meets wireless charging times that match or surpass wired charging times, as it triples the received power capability of Toshiba's current product by increasing the rectified voltage without any change in package size.

The TB6865AFG is offered in 2.4mm x 3.67mm x 0.5mm WCSP28 package. Samples will be available by the end of this year and the mass production will begin spring 2016.

Wireless transfer power applications





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