Outline

The TB6865AFG is wireless power transmitter (TX) IC for Qi low power v1.1 compliant of Wireless Power Consortium (WPC).

TB6865AFG includes ARM Core Tex M3, PWM control, PreDriver ASK demodulate circuits for wiress power taransfer system.

The IC includes all TX functions needed to construct a standalone wireless power system.

Features

• Cortex-M3 manufactured by ARM is used

• RAM : 8Kbyte

• Flash ROM : 128Kbyte

• Pre driver (Drive 4× Full Bridge circuit) / High Resolution PWM(100Hz step): 16 channels

• 12-bit Analog/Digital Converter(ADC) : 14 channels

• ASK signal input : 4 channels

• Input Output ports : 64 pins

 Large current for LED drive: 6 pins / Control for buzzer: 1 pin

• General-purpose serial interface(UART) : 2 channels

• Serial bus interface(I2C bus) : 1 channel

• 3.3V LDO

• Fail safe function (Over voltage detection , Over current detection, and Thermal shut down)

• Maximum operation frequency

CPU : 20MHz

PWM : 80MHz

• Operating voltage range

Analog and pre driver : 4.5V to 14V

Digital : 2.7V to 3.6V

• Package : LQFP100-P-1414-0.50G (14mm×14mm, 0.5mm pitch)

Applications

Mobile devices (Smartphone, tablet), Mobile accessory etc.