MAX11811ETP+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Touchscreen Controller
• Characteristics: High-performance, low-power consumption
• Package: 20-TQFN (4x4)
• Essence: Enables touch input functionality in electronic devices
• Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

• Supply Voltage: 1.71V to 3.6V
• Operating Temperature Range: -40°C to +85°C
• Resolution: Up to 4096 x 4096
• Interface: I2C
• Touch Sensing Channels: 16
• Power Consumption: < 10µA in Deep Sleep Mode

Detailed Pin Configuration

The MAX11811ETP+T has a 20-pin TQFN package with the following pin configuration:

1. VDD: Power supply voltage
2. GND: Ground
3. INT: Interrupt output
4. SDA: I2C serial data input/output
5. SCL: I2C serial clock input
6. XN[0]: Analog input for X-axis touch position
7. XP[0]: Analog input for X-axis touch position
8. YN[0]: Analog input for Y-axis touch position
9. YP[0]: Analog input for Y-axis touch position
10. XN[1:15], XP[1:15], YN[1:15], YP[1:15]: Additional analog inputs for touch positions
11. REF: Reference voltage input
12. CREF: Capacitive reference input
13. CS: Chip select input
14. RESET: Reset input
15. AVDD: Analog power supply voltage
16. AGND: Analog ground
17. TEST: Test mode input
18. VBAT: Backup battery input
19. BATSW: Battery switch control
20. VIO: Digital I/O voltage

Functional Features

• Capacitive touch sensing technology
• Multi-touch support
• Low-power consumption for extended battery life
• High-resolution touch position detection
• Integrated reference and backup battery support
• Interrupt-driven operation for efficient processing

Advantages and Disadvantages

Advantages: - High-performance touch controller - Supports multi-touch functionality - Low power consumption extends device battery life - Compact package size allows for integration in small form factor devices

Disadvantages: - Limited to I2C interface, may not be compatible with all systems - Requires external components for complete touch sensing system implementation

Working Principles

The MAX11811ETP+T utilizes capacitive touch sensing technology to detect touch inputs on a touchscreen surface. It employs an array of touch sensing channels to accurately determine the X and Y coordinates of touch positions. The IC communicates with the host device through the I2C interface, providing touch data and receiving commands.

Detailed Application Field Plans

The MAX11811ETP+T is widely used in various electronic devices that require touch input functionality. Some common application fields include:

1. Smartphones and tablets
2. Portable gaming consoles
3. Automotive infotainment systems
4. Industrial control panels
5. Home automation interfaces

Detailed and Complete Alternative Models

1. MAX11801ETG+: Similar specifications and features, different package (24-TQFN)
2. MAX11812ETP+: Higher resolution (up to 8192 x 8192), otherwise similar specifications and features
3. MAX11813ETP+: Lower power consumption (< 5µA in Deep Sleep Mode), otherwise similar specifications and features

Note: This is not an exhaustive list of alternative models. Please refer to the manufacturer's documentation for a complete list of available options.

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