- Operating Voltage: 2.5 ~ 5V DC
- Dimensions : 15mm x 11mm
- Supports momentary or latching/toggle modes.
- Supports Active High or Active Low output signal modes.
- Sensitivity can adjust by the capacitance(0~50pF).
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. 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.
Specification:
- Operating Voltage: 2.5 ~ 5V DC
- Dimensions : 15mm x 11mm
Features:
- Supports momentary or latching/toggle modes.
- Supports Active High or Active Low output signal modes.
- The response time max is ~ 60mS in fast mode and ~220mS at low power mode @VDD=3V.
- Sensitivity can be adjusted 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 the traditional direct switch key.
- Provides Fast mode and Low Power mode selection by pad option(LPMB pin).
- Provides direct mode, and toggle mode by pad option(TOG pin).
- In the open-drain mode by bonding option, the OPDO pin is an open-drain output, Q pin is the CMOS output.
- All output modes can be selected as active high or active low by pad option(AHLB pin).
- Have the maximum on-time 100sec by pad option(MOTB pin).
- Have an external power-on reset pin(RST pin).
- After power-on it has about 0.5sec stable time, during that 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 been touched.
Pin Description:
- VCC: External 3.3V-5V
- GND: External GND
- DO: Digital output interface, could be connected to MCU IO port
Package Included:
1 x TTP223 Touch Key Switch Module Touching Button Self-Locking/No-Locking Capacitive Switches Single Channel (Red)