TTP223 Touch Button Module Self-Locking Inching Capacitive Switch

The TTP223 Touch Key Module is an advanced capacitive touch switch module based on the dedicated TTP223 touch-sensing IC. This module features a single integrated touch sensing area measuring 11 x 10.5 mm, with a sensor range of approximately 5 mm, allowing for responsive interaction without the need for physical buttons.

An onboard LED provides a clear visual indication when the sensor is triggered, enhancing user feedback. Upon activation, the output of the module switches from its idle low state to high, showcasing its default operation mode. Additionally, solder jumpers on the module allow for easy reconfiguration of its operation mode, enabling options for either active low or toggle output to suit different application requirements.

The TTP223 effectively replicates the functionality of a single tactile button while offering greater design flexibility. This touch detection IC is ideal for replacing traditional mechanical buttons, enabling designers to utilize diverse pad sizes and create sleek, modern interfaces in various devices, from consumer electronics to home automation systems. Its compact size and ease of integration make the TTP223 an excellent choice for enhancing user experience in any project.

TTP223 Touch Button Module Features :

• Supports momentary or latching/toggle modes.
• Supports Active High or Active Low output signal modes.
• Dimensions : 15mm x 11mm.
• 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).
• Have two kinds of sampling length by pad option(SLRFTB pin).
• Stable touching detection of the 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 100sec 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 keypad, and the function is disabled.
• Auto calibration.
• Re-calibration period is about 4.0 sec when the key has not be touched.

Package Includes :

• 1 x TTP223 Touch Button Module Self-Locking Inching Capacitive Switch