TTP223 Touch Key Module

Description:-

The TTP223 Touch Key Module is based on a touch-sensing IC (TTP223) capacitive touch switch module. A capacitive touch sensor module based on the dedicated TTP223 touch sensor IC. The module provides a single integrated touch sensing area of 11 x 10.5mm with a sensor range of ~5mm.

Features :-

Input Voltage : 2 Volt – 5.5 Volts DC.

The response time max ~ 60mS in fast mode, ~220mS at low power mode @VDD=3V.

Sensitivity can adjust by the capacitance(0~50pF).

Stable touching detection of the human body for replacing traditional direct switch key.

Provides direct mode toggle mode by pad option(TOG pin).

After power-on have about 0.5sec stable-time, during the time do not touch the keypad, and the function is disabled.

Auto calibration and Re-calibration period is about 4.0 sec when the key has not be touched.