QT113-D

Product Overview

• Category: Electronic Component
• Use: Capacitive Touch Sensor IC
• Characteristics: High sensitivity, low power consumption
• Package: DIP (Dual Inline Package)
• Essence: Integrated circuit for touch sensing applications
• Packaging/Quantity: Available in reels of 1000 units

Specifications

• Operating Voltage: 2.5V to 5.5V
• Operating Current: 1.5μA (typical)
• Sensing Method: Capacitive
• Number of Channels: 1
• Output Type: Digital
• Response Time: 60ms (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The QT113-D has a total of 8 pins arranged as follows:

┌───┬───┐ │ 1 │ 2 │ ├───┼───┤ │ 3 │ 4 │ ├───┼───┤ │ 5 │ 6 │ ├───┼───┤ │ 7 │ 8 │ └───┴───┘

1. VDD: Power supply voltage input
2. GND: Ground reference
3. SNS: Capacitive touch sensor input
4. OUT: Digital output indicating touch detection
5. NC: Not connected
6. NC: Not connected
7. NC: Not connected
8. NC: Not connected

Functional Features

• High sensitivity allows for reliable touch detection even with small capacitance changes.
• Low power consumption makes it suitable for battery-powered devices.
• Single-channel design simplifies integration into various applications.
• Digital output provides easy interfacing with microcontrollers or other digital circuits.

Advantages and Disadvantages

Advantages: - High sensitivity ensures accurate touch detection. - Low power consumption extends battery life. - Simple integration due to the single-channel design. - Digital output simplifies interfacing with other circuits.

Disadvantages: - Limited to a single touch sensing channel. - Requires external components for proper operation.

Working Principles

The QT113-D operates based on capacitive sensing principles. It detects changes in capacitance caused by the presence of a conductive object, such as a human finger, near the touch sensor input pin. When a touch is detected, the IC generates a digital output signal indicating the touch event.

Detailed Application Field Plans

The QT113-D can be used in various applications that require touch sensing capabilities. Some potential application fields include:

1. Consumer Electronics:

   • Touch-sensitive buttons and sliders on remote controls.
   • Capacitive touch panels for smartphones and tablets.

2. Home Automation:

   • Touch-based light switches and dimmers.
   • Proximity sensors for automatic door opening systems.

3. Automotive:

   • Touch-sensitive controls for infotainment systems.
   • Capacitive touch buttons on steering wheels.

4. Industrial Control:

   • Human-machine interface (HMI) panels with touch input.
   • Touch-sensitive control panels for machinery and equipment.

Detailed and Complete Alternative Models

1. QT114-D: Similar to QT113-D but with 4 touch sensing channels.
2. QT100A: Capacitive touch sensor IC with integrated LED driver.
3. AT42QT1010: Single-key capacitive touch sensor IC with adjustable sensitivity.

These alternative models offer similar functionality and can be considered as alternatives to the QT113-D depending on specific requirements.

Word count: 430 words