O-Sense
Toshiba Electronics Europe has announced the launch of the industry’s first[1] single-chip 15W wireless power receiver IC that is compliant with the Qi[2] v1.2 specifications defined by the Wireless Power Consortium (WPC). The new TC7766WBG has been designed for use in mobile devices such as smartphones, tablets and a range of mobile industrial devices.
The TC7766WBG enables fast wireless charging, with charging times similar to, and in some cases less than, wired charging. It accomplishes this by increasing the power reception capability by a factor of three compared to existing products[3], while maintaining a small footprint.
In addition, a receiver side I2C interface[4] compatible host controller can exchange information with a compatible transmitter to enable user-notification of wireless charging status via the mobile device display.
Housed in a WCSP28 package measuring just 2.4mm by 3.67mm by 0.5mm, the TC7766WBG features a host of protection functions as well as all the rectifier circuits and controllers needed to construct a standalone wireless power transfer RX system. The device is constructed using Toshiba’s original cutting-edge CD-0.13 process.
With a maximum output current of 1.7A and adjustable output voltage settings of 5V-14V, the new receiver is compatible with Toshiba’s 5W transmitter IC TB6865AFG[5], as well as with other 15W wireless charging transmitters complying with the Qi v1.2 standard[6].
Notes:
[1] As of November 11, 2015, Toshiba survey.
[2] The international standard for wireless
[3] TC7764WBG (Qi v.1.1.2 compliant 5W receiver IC)
[4] The serial interface developed by Philips
[5] TB6865AFG (Qi v.1.1.2 compliant 5W transmitter IC)
[6] Under development
