Managing the 12-watt power transfer necessary for wireless charging of tablets, and compatible with the Qi low-power specification version 1.1 defined by the Wireless Power Consortium (WPC), the TC7765WBG offers a comparable user experience to that of conventional wired charging for tablets, as well as smartphones and other portable devices, said TAEC.
The TC7765WBG wireless power receiver controller IC is built with Toshiba's mixed-signal process using a high-performance MOSFET design that is said to maximize power efficiency and thermal performance. The IC combines modulation and control circuitry with a rectifier power pickup, I2C interface and circuit protection functions. The IC is compliant with the Qi spec’s "Foreign Object Detection" (FOD), which prevents heating of any metal objects in the path of wireless power transfer between the receiver and the transmitter.
The 12-W receiver IC is designed in the same size package as Toshiba's 5-W wireless power receiver controller TC7763WBG – a WCSP 28 2.4- x 3.67- x 0.5-mm package. When the TC7765WBG is combined with a copper coil, charging IC and peripheral components it creates a wireless power receiver. Combining the receiver with a Qi-compliant wireless power transmitter that contains a Toshiba wireless power transmitter IC such as TB6865AFG Enhanced version forms a complete wireless power charging solution, said the company.
Availability: Samples of the TC7765WBG wireless power receiver IC will be available at the end of January 2015, with mass production set to begin in Q2 2015.