TTP223 touch sensor IC

TTP223 is a touch sensor IC (Integrated Circuit) that can detect touch on a variety of surfaces such as metal, plastic, and glass. It is commonly used in various electronic projects and devices as a reliable touch sensing solution.

Here are some key details about the TTP223 touch sensor:

Operating voltage: The TTP223 operates on a voltage range of 2.0V to 5.5V, making it compatible with a wide range of microcontrollers and development boards.

Touch detection method: The TTP223 uses a capacitive touch sensing method to detect touch. This method relies on the capacitance changes that occur when a finger or other conductive material comes in contact with a sensor pad.

Number of touch pads: The TTP223 has a single touch pad that can detect touch.

Output signal: The TTP223 provides a digital output signal that goes high when touch is detected, and low when there is no touch.

Sensitivity: The sensitivity of the TTP223 can be adjusted using an external resistor, allowing you to customize the touch detection threshold to suit your needs.

Power consumption: The TTP223 is designed to be low power, consuming only a few micro amps of current when idle, and a few milliamps of current when active.

Pin description

Application diagram

The output can be configured by the logic levels at pin no. 4 and 6. The truth table below shows the function in details.

Overall, the TTP223 is a reliable and versatile touch sensor that can be used in a variety of electronic projects and devices. Its low power consumption, adjustable sensitivity, and digital output signal make it a popular choice among hobbyists and professionals alike. you can get more details from the video below.