CPT112S-A02-GMR

Product Overview

Category

The CPT112S-A02-GMR belongs to the category of capacitive touch controllers.

Use

This product is primarily used for touch sensing applications, enabling user interaction with electronic devices through touch input.

Characteristics

• Capacitive touch technology
• High sensitivity and accuracy
• Low power consumption
• Compact size
• Easy integration into various electronic systems

Package

The CPT112S-A02-GMR is available in a small surface-mount package, making it suitable for space-constrained designs.

Essence

The essence of this product lies in its ability to accurately detect touch inputs and convert them into digital signals for further processing.

Packaging/Quantity

The CPT112S-A02-GMR is typically packaged in reels or trays, with quantities varying based on customer requirements.

Specifications

• Operating voltage: 2.4V - 5.5V
• Current consumption: <1µA in sleep mode, <10µA in active mode
• Communication interface: I2C
• Touch channels: 12
• Sensing method: Mutual capacitance
• Operating temperature range: -40°C to +85°C

Detailed Pin Configuration

The CPT112S-A02-GMR features the following pin configuration:

1. VDD: Power supply voltage
2. GND: Ground reference
3. SDA: Serial data line (I2C)
4. SCL: Serial clock line (I2C)
5. IRQ: Interrupt request output
6. TCH0-TCH11: Touch channel inputs

Functional Features

• Multi-touch support
• Gesture recognition
• Proximity detection
• Noise filtering
• Adjustable sensitivity
• Built-in self-calibration

Advantages and Disadvantages

Advantages

• High sensitivity allows for precise touch detection
• Low power consumption prolongs battery life in portable devices
• Compact size enables integration into space-constrained designs
• Multi-touch and gesture recognition enhance user experience
• Proximity detection adds versatility to applications

Disadvantages

• Limited number of touch channels may restrict complex touch interactions
• Sensitivity to environmental factors such as moisture or dirt may affect performance

Working Principles

The CPT112S-A02-GMR utilizes mutual capacitance sensing technology. When a conductive object, such as a finger, approaches the touch surface, it causes a change in the capacitance of the electrode. The touch controller detects this change and converts it into digital signals, which are then processed to determine the touch position and perform various functions.

Detailed Application Field Plans

The CPT112S-A02-GMR finds application in various fields, including: 1. Consumer electronics: smartphones, tablets, wearable devices 2. Home appliances: touch-sensitive control panels for ovens, refrigerators, etc. 3. Automotive: infotainment systems, touchscreens in cars 4. Industrial control: human-machine interfaces, control panels 5. Medical devices: touch-enabled medical equipment

Detailed and Complete Alternative Models

1. CPT113S-A01-GMR
2. CPT114S-A03-GMR
3. CPT115S-A04-GMR
4. CPT116S-A05-GMR

These alternative models offer similar functionality and features, with variations in specifications and pin configurations to cater to different design requirements.

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