Wireless power receiver enables charging “as fast as by cable”

August 18, 2015 // By Graham Prophet
Toshiba Electronics’ latest wireless power receiver IC claims to enable mobile devices to be charged wirelessly at comparable rates to a wired conenction. TC7764WBG supports a maximum power output of 5W and is compliant with the Qi standard’s low power specification V.1.1.2, defined by the Wireless Power Consortium (WPC).

Toshiba has configured the TC7764WBG so that maximum output power is increased to 5W and a maximum power conversion efficiency of 95% is achieved, using an efficiency measurement that excludes the influence of the power signal receiving coil and tank capacitors. To ensure mobile device safety, the IC integrates a Qi protocol authentication circuit for power transfers, foreign object detection functions, under-voltage lockout (UVLO) and over-voltage lockout (OVLO) functions for the external power supply bypass option as well as thermal shutdown functions (TSD).

The IC is housed in a WCSP28 package measuring 2.4 x 3.67 x 0.5 mm.

Toshiba Electronics Europe; www.toshiba.semicon-storage.com