Wireless power transmitter IC features 15W capability

24th February 2016

Toshiba

Jordan Mulcare

0 0

Datasheet

Toshiba has launched a compact and efficient wireless power transmitter IC with a 15W transmission capability. In combination with a host MCU, the TC7718FTG realises a wireless power transmission system compliant with WPC Qi version 1.2. Built on Toshiba’s CD-0.13 semiconductor process, the TC7718FTG combines a small package with high efficiency.

This simplifies system integration and ensures charging systems with small footprints. A 15W wireless transmitter system based on the IC will recharge devices quickly, at a rate equal to or faster than wired chargers.

The IC is suitable for smartphone and tablet charging stand applications. In addition, the 15W rating of the device extends the possibility of wireless charging to industrial products and other higher power applications that may require more energy or longer charging times than consumer devices.

Wireless transmitters that use the IC will allow designers to create Qi v1.2-compatible charging stations capable of operating with powers up to 15W. Combining with Toshiba’s TC7764WBG receiver delivers systems that can transmit 5W, while 10W charging is possible by using the TC7765WBG receiver IC. Both devices are already in mass production.

Toshiba’s TC7766WBG receiver IC supports systems for transferring up to 15W and mass production of this device will commence shortly.

Toshiba’s electromagnetic induction transmitter IC integrates a full-bridge gate driver, an LDO with a 3.3V output and a low-pass filter for recovery of an ASK signal. The TC7718FTG is supplied in a compact P-VQFN36 package and can handle input voltages from 4.5 to 25V. Operating frequency is from 110 to 205kHz.