TTP223 Capacitive Touch Sensor Module (2Pcs)

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. An onboard LED will give a visual indication of when the sensor is triggered. When triggered the output of the module will switch from its idle low state to high (default operation). Solder jumpers allow for reconfiguring their mode of operation to be either active low or toggle output.

TTP223 Capacitive Touch Sensor Module. The TTP223 is a touchpad detector IC replicating a single tactile button. The TTP223 is a touchpad detector IC replicating a single tactile button. This touch-detection IC is designed to replace traditional direct button keys with diverse pad sizes.

The TTP223 Capacitive Touch Sensor Module, available in a convenient pack of two, offers a simple and reliable solution for integrating touch-sensitive functionality into electronic projects. Utilizing capacitive sensing technology, these modules detect changes in capacitance caused by a user’s touch, enabling seamless interaction without the need for physical buttons or switches.

Each TTP223 module features a single capacitive touch sensor pad, which can be easily connected to a microcontroller or other digital circuitry. The modules operate on low power and require minimal external components, making them ideal for applications where space and energy efficiency are paramount. Additionally, they offer a compact form factor, allowing for easy integration into various electronic devices and prototypes.

Setting up the TTP223 Capacitive Touch Sensor Modules is straightforward, requiring only a few connections to power and input/output pins. These modules typically feature an onboard voltage regulator, allowing them to be powered from a wide range of supply voltages, typically between 2.5V and 5.5V. This versatility makes them compatible with various microcontroller platforms and power sources commonly found in electronic projects.

Once connected, the TTP223 modules can detect touch inputs with high sensitivity and reliability. They feature built-in debounce circuitry to filter out noise and ensure accurate touch detection, minimizing false triggers and improving overall user experience. Additionally, the modules offer adjustable sensitivity settings, allowing users to fine-tune the responsiveness of the touch sensor to suit their specific application requirements.

Trigger-setting mode: (1- > Short ; 0- > No Short)

AB=00: No-lock High TTL level output;
AB=01: Self-lock High TTL level output;
AB=10: No-lock Low TTL level output;
AB=11: Self-lock Low TTL level output;

Features :

1. Supports momentary or latching/toggle modes.
2. Supports Active High or Active Low output signal modes.
3. Dimensions : 15mm x 11mm.
4. Input Voltage: 2 Volt – 5.5 Volts DC.
5. The response time max ~ 60mS in fast mode, ~220mS at low power mode @VDD=3V.
6. Sensitivity can be adjusted by the capacitance(0~50pF).
7. Have two kinds of sampling length by pad option(SLRFTB pin).
8. Stable touching detection of the human body for replacing traditional direct switch key.
9. Provides Fast mode and Low Power mode selection by pad option(LPMB pin).
10. Provides direct mode、toggle mode by pad option(TOG pin).
11. Open-drain mode by bonding option, OPDO pin is open drain output, Q pin is CMOS output.
12. All output modes can be selected as active high or active low by pad option(AHLB pin).
13. Have the maximum on time 100sec by pad option(MOTB pin).
14. Have an external power-on reset pin(RST pin).
15. After power-on have about 0.5sec stable time, during that time do not touch the keypad, and the function is disabled.
16. Auto calibration.
17. Re-calibration period is about 4.0 sec when the key has not been touched.

Package Includes :

2 x TTP223 TOUCH KEY MODULE