Reference Designs

TI design TIDA-00334 wireless power supply transmitter is an application of the bq500212A IC in a small form factor design targeted at low power wearable devices.     Input voltage to the unit is 5V from a Micro USB connector.  The low power design will support output power at the receiver up to 2.5W. All key transmitter circuits are laid out in a 30mm area which matches the diameter the Wurth coil P/N 760308101103.  This area is slightly larger than a US Quarter or 2 Euro coin.  PCB is 38mm X 76mm (1.5” X 3.0”) but area for the circuit is inside the 30mm coil diameter is about 700mm2.