Toshiba TB6865FG Power Transmitter and TB6860WBG Receiver for "Free Positioning" Wireless Charging of Mobile Phones
Fully compliant with the Wireless Power Consortium (WPC) Qi1 interface specification, the TB6865FG power transmitter represents the industry's first transmitter to use the WPC's Qi™ A4 transmitter technology for wireless charging. This technology features a two-coil control architecture to enable low-cost battery charging with increased freedom to position a Qi-capable phone on the charging surface.
- For enhanced design flexibility, the TB6865FG can manage the wireless charging of two devices simultaneously and achieves up to 74% efficiency across a majority of the charging area.
- Toshiba's new chipset features high levels of integration to reduce component count, board space and cost in wireless charging applications.
- The TB6865FG transmitter integrates both microcontroller and analog elements including PWM circuitry, switching control, on-board filter and a pre-driver circuit.
- The TB6860WBG receiver combines modulation and control circuitry with a rectifier power pickup, built-in DC-DC converter and protection functions, and a programmable charging profile via I2C control.
- The TB6860WBG integrated DC-DC converter provides for high-efficiency, high-current charging with a charge current of up to 0.95A.
