Products

ON Semiconductor - LC717A30UR

The LC717A30UR is a high performance, low cost, and highly usable capacitance converter for electrostatic capacitive touch and proximity sensors.

8 capacitance-sensing input channels ideal for use in any end products that needs an array of switches. The LC717A30UR facilitates a short system development time through its automatic calibration function and minimal external components. The detection result (ON/OFF) for each sensor is read out by the serial interface (I2C or SPI).


Target applications

  • Smart key, Control switches, Car audio and Proximity
  • Home Appliance, White goods and Induction Cooking
  • Security lock
  • PC Peripherals, Audio Visual equipment
  • Remote control switches

Features

  • Detection system: Differential capacitive detection using mutual capacitance
  • Sensor input pads: Operates with small to large capacitance sensor input pads
  • Input capacitance resolution: Capacitance detection down to femto-Farad level
  • Measurement time 16 ms for 8 sensors
  • Minimal external components
  • Selectable interface : I²C or SPI
  • Current consumption : 0.8 mA (VDD = 5.5 V)
  • Supply voltage : 2.6 to 5.5 V
  • AEC-Q100 qualified and PPAP capable

ON Semiconductor LC717A30UR Capacitance-Digital-Converter for Electrostatic Capacitive Touch Sensors

Benefits

  • Superior sensitivity performance - even not only wearing multiple layers of gloves, air gap, or thick materials but also gesture.
  • Reducing cost because of being unnecessary to supplement sensitivity.
  • Achieving layout freely because of receiving hardly from parasitic capacitance.
  • High adaptability by internal both noise reduction and correspondence system for environment changing.
  • Advantage tolerance for malfunction prevention of water.


Block diagram

ON Semiconductor LC717A30UR Capacitance-Digital-Converter for Electrostatic Capacitive Touch Sensors

 

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