Wireless power charger LSI

The TB6865 is wireless power transmitter (TX) IC for Qi low power v1.1 compliant of Wireless Power Consortium (WPC). TB6865 includes ARM Core Tex M3, PWM control, PreDriver ASK demodulate circuits for wiress power transfer system. The IC includes all TX functions needed to construct a standalone wireless power system.

• 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)