Wireless power receiver IC offers low heat generation, Qi compatibility

December 13, 2013 // By Graham Prophet
Toshiba Electronics Europe's TC7761WBG is a wireless power receiver IC that complies with the Qi Standard's Low Power Specifications version1.1.

The IC will be used in wireless power supply applications, such as smartphones and mobile accessories. Fabricated in a combined CMOS-DMOS process it reduces losses by 30%, representing a reduction in heat generation of 70% compared to previous products. It achieves 95% power conversion efficiency. The IC’s built-in protocol authentication circuit, includes a foreign object detection (FOD) function, eliminates the need for an external microcontroller and contributes to simplified system designs.

TC7761WBG has been Qi-certified for an output power of 3.5W, and can handle a maximum output power of 5W.

Toshiba; www.toshiba-components.com