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TTP223 Capacitive Touch Sensor Module – Red is based on a touch-sensing IC (TTP223) capacitive touch switch module. The module provides a single integrated touch sensing area of 11 x 10.5mm with a sensor range of ~5mm. In the normal state, the module output low, low power consumption. When a finger touches the corresponding position, the module output high, if not touched for 12 seconds, switch to low-power mode.
Supports momentary or latching/toggle modes Supports Active High or Active Low output signal modes Dimensions: 15mm x 11mm Input Voltage: 2V-5.5V DC The response time max ~ 60mS in fast mode, ~220mS at low power mode @VDD=3V Sensitivity can adjust by the capacitance (0~50pF) Have two kinds of sampling length by pad option (SLRFTB pin) Stable touching detection of human body for replacing traditional direct switch key Provides Fast mode and Low Power mode selection by pad option (LPMB pin) Provides direct mode toggle mode by pad option (TOG pin) Open drain mode by bonding option, OPDO pin is open drain output, Q pin is CMOS output All output modes can be selected active high or active low by pad option (AHLB pin) Have the maximum on time 100 sec by pad option (MOTB pin) Have external power on reset pin (RST pin) After power-on have about 0.5sec stable-time, during the time do not touch the key pad, and the function is disabled Auto calibration Re-calibration period is about 4.0sec, when key has not be touched