Capacitive Touch Sensor Controller

ILI2511

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Version: 1.05

1. Description

The ILI2511 is a single chip capacitive touch sensor controller optimized for POS,

ATM and Industry Capacitive Touch Panel applications. It integrates high speed

Capacitance to Digital Converter (CDC), total 65 channels including high voltage

Driving and Sensing channels, high voltage Charge Pump Controller, high voltage

regulator and 32-bit high performance Micro-controller (MCU). In order to minimize

system design cost, ILI2511 also integrates a USB 5V to 3.3V Low Drop-out

Regulator and supports 1.8V/3.3V input power supply operation for I2C, SPI, UART,

GPIO. With compact QFN-88 package, its package size is 10mm*10mm*1mm and

pad pitch is 0.4mm. ILI2511 meets all Windows 8.1 and Windows 10 requirements

with best user touch experience and highest noise immunity performance.

2. Features

65 channels for capacitive touch panel

Flexible driving or sensing channel assignment

Max TX channel number is 42

Max RX channel number is 41

Programmable driving voltage for driving channels

High voltage charge pump controller with programmable high voltage regulator

High speed ADC converter

Support baseline calibration function

Support mutual-capacitance sensing

Support self-capacitance sensing

Integrated USB5V to 3.3V Low Drop-out Regulator

Support 1.8V and 3.3V Operation of VDDIO for I2C, SPI, UART, GPIO

Built-in noise processing function

Support IEC 61000-4-6 (CS test), Level 3: 10Vrms

Built-in 32-bit high performance Micro-controller (MCU)

Input voltage low level detection circuit

Input voltage power on reset circuit

Driving to Sensing mutual capacitance: 1pF to 4pF