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Multi key touch IC

Capacitive multi-key touch detection IC
CT8224D-2

CT8224D-2 is a capacitive key touch and proximity sensing switch control chip, which replaces the traditional mechanical switch. The product adopts CMOS

Process manufacturing, stable structure and performance, low power consumption, and multiple output modes can be configured through pins.

The chip can support up to 2-channel input detection and corresponding output. 

Product detail

 Working voltage: 2.4~5.5V

  Low power consumption mode is about 6uA (±25% @VDD=3.7V, CS=22nF)

  The power-on initialization is completed within 1s after the power supply is stable, and all functions are disabled during this period

 The chip can be debugged with ultra-high sensitivity for special application products

  Automatic calibration function, can quickly and automatically adapt to changes in the working environment

 High reliability, chip software built-in debounce function

  Through software configuration into a variety of output modes, the sensitivity of the input channel can be adjusted independently

  Good anti-interference performance, ESD up to 4KV

  The product can be used on the surface of glass, ceramics, plastics, acrylic and other media

  The product is SOP-8L package with better adaptability