MTCH112T-I/MF

Product Overview

Category: Integrated Circuit (IC)

Use: The MTCH112T-I/MF is a specialized IC designed for touch sensing applications.

Characteristics: - High sensitivity - Low power consumption - Compact size - Easy integration

Package: The MTCH112T-I/MF is available in a small form factor package, making it suitable for space-constrained designs.

Essence: The essence of the MTCH112T-I/MF lies in its ability to accurately detect touch inputs and convert them into digital signals.

Packaging/Quantity: The IC is typically sold in reels or trays, with a quantity of 2500 units per reel.

Specifications

• Supply Voltage: 2.4V - 3.6V
• Operating Temperature Range: -40°C to +85°C
• Communication Interface: I2C
• Number of Touch Channels: 12
• Touch Sensing Method: Mutual Capacitance
• Maximum Capacitive Load: 100 pF
• Power Consumption: 1.5 µA (typical)
• Package Type: Thin QFN

Detailed Pin Configuration

The MTCH112T-I/MF features a total of 20 pins, which are assigned specific functions as follows:

| Pin Number | Pin Name | Function | |------------|----------|----------| | 1 | VDD | Power Supply Voltage | | 2 | SDA | I2C Serial Data Line | | 3 | SCL | I2C Serial Clock Line | | 4-15 | CH0-CH11 | Touch Channel Inputs | | 16 | GND | Ground | | 17-20 | NC | No Connection |

Functional Features

• Accurate touch detection: The MTCH112T-I/MF utilizes mutual capacitance sensing to accurately detect touch inputs, even in the presence of noise or moisture.
• Low power consumption: With a typical power consumption of only 1.5 µA, the IC is ideal for battery-powered devices.
• Easy integration: The I2C interface simplifies the integration of the MTCH112T-I/MF into various microcontroller-based systems.
• High sensitivity: The IC offers high sensitivity, enabling it to detect even the slightest touch inputs.

Advantages and Disadvantages

Advantages: - Accurate touch detection - Low power consumption - Compact size - Easy integration with microcontrollers - High sensitivity

Disadvantages: - Limited number of touch channels (12)

Working Principles

The MTCH112T-I/MF operates based on mutual capacitance sensing. It measures changes in capacitance caused by the presence of a conductive object (such as a finger) near the touch channels. By analyzing these capacitance changes, the IC determines if a touch input has occurred.

Detailed Application Field Plans

The MTCH112T-I/MF is suitable for a wide range of touch sensing applications, including but not limited to: - Consumer electronics (smartphones, tablets, wearables) - Home appliances (touch control panels for ovens, refrigerators, etc.) - Automotive (infotainment systems, touch-sensitive buttons) - Industrial automation (human-machine interfaces, control panels)

Detailed and Complete Alternative Models

• MTCH101: Single-channel touch controller IC
• MTCH105: 5-channel touch controller IC
• MTCH6102: 10-channel touch controller IC
• MTCH6303: 30-channel touch controller IC

These alternative models offer varying numbers of touch channels to suit different application requirements.

Word count: 399 words