The BQ500511 from Texas Instruments is a wireless power transmitter controller that supports received power up to 5W. This Qi-Certified IC supports the WPC v1.2 specification for 5W operation and integrates the logic functions required to create a Qi-compliant. The BQ500511 supports accurate foreign object detection (FOD) that prevents heating of objects between transmitter and receiver coils. The device features Dynamic Power Limiting (DPL) that enables operation from input sources with limited power and has 10 configurable LED modes that indicate charging state and fault status. It is available in 40-pin VQFN package that measures 6 x 6 mm.