A4WP compliant high frequency wireless charging receiver\nfront end

主要特性

• 25 V tolerant antenna input pins
• Automatic over-voltage protection of the antenna inputs
• 6.78 MHz compatible integrated rectifier
• High efficiency with an active rectifier and a DC-to-DC converter
• Integrated LDOs (1.8 V and 3.3 V up to 100 mA) with auto enable and discharge path
• Integrated DC-to-DC buck regulator with 5 V, 1.2 A output
• Multi-channel 12-bit ADC subsystem
• Temperature sensor (NTC) analog interface
• USB bus power supply detection
• 400 kHz I²C-bus slave interface
• Software and power-on reset of the on-chip digital controller
• Programmable rectifier modes: active, half-active and passive
• 2 digital General Purpose Input and Output ports (GPIOs) with open-drain outputs and up to 60 V tolerance for control and communication applications
• 2 digital General Purpose Input and Output ports (GPIOs) with open-drain outputs and 25 V tolerance for control and communication applications
• Protection circuitry:
  • Automatic over-power protection
  • Automatic AC short to ground for OVP option
  • Automatic DC-to-DC over-voltage protection lock out option
  • Over-temperature protection
  • Over-voltage protection
  • Under-voltage protection
  • Under-voltage lockout (for LDOs and DC-to-DC controller)
• Specified from -40 °C to +85 °C ambient temperature
• 3.56 mm x 3.41 mm WLCSP with 0.5 mm pitch