TI chip simplifies development of Qi charging stations
Extending its power management portfolio, Texas Instruments has introduced a next generation wireless power transfer circuit to support the WirelessPower Consortium (WPC) 1.1 specification.
The bq500212A transmitter, which is now shipping in volume production, is said to require one third fewer components than competitive solutions.
The circuit is also optimised to allow designers to quickly take to market Qi compliant wireless charge pads or stations that can operate from a USB port or 5V power adapter.
The device's standby mode ensures <100mW of standby power with no receiver on the pad and <50mW once the receiver has finished charging.
A hybrid capacitor scheme reduces system bom cost by using a combination of X7R and COG capacitors instead of only relying on COG capacitors.
