ILI2511 Single Chip Capacitive Touch Sensor Controller 8F., No.1, Taiyuan 2 St., Zhubei City, Hsinchu County 302, Taiwan (R.O.C.) Tel.886-3-5600099; Fax.886-3-5600055 http://www.ilitek.com

Capacitive Touch Sensor Controller Revision History Version Description Preliminary released Modify the pin description & application circuit. Modify the pin assignment & pin description. Modify the page information of revision history. Modify the feature and application circuit. Modify VDDIO operation voltage Modify Power Sequence Modify Recommended Operating Conditions, DC Characteristics, I2C DC Characteristics Final Specification released Change VDDIO From 5V into 3.3V Add VDDIO 3.3V or 1.8V Input Power Supply Characteristics Add Marking Information Modify Input Power Supply Voltage Range...

Capacitive Touch Sensor Controller

Capacitive Touch Sensor Controller 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). 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...

Capacitive Touch Sensor Controller HV Charge Pump OSC XTAL PLL Figure 3-1: ILI2511 Block Diagram

Capacitive Touch Sensor Controller

Capacitive Touch Sensor Controller 4.2 QFN-88 Pin Description Table 4-1 Pin Type Define Symbol P CLK Description Power pad Clock Input only Output only (Push-pull) Table 4-2 ILI2511 Pin Description Name 3.3V input power supply, connect 1uF capacitor to system ground 3.3V input power supply, connect 1uF capacitor to system ground 3.3V input power supply, connect 1uF capacitor to system ground 1.6V regulator output, connect 1uF capacitor to system ground HV regulator output, connect 1uF capacitor to system ground Charge pump HV output, connect 1uF capacitor to system ground connect to system ground...

Capacitive Touch Sensor Controller I2C interface, data input. Typical touch panel sensing channels Typical touch panel sensing channels and can be configured to driving channels Typical touch panel driving channels connect to system ground

Capacitive Touch Sensor Controller 5. Electrical Characteristics 5.1 Absolute Maximum Ratings Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are for stress ratings. Functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may remain possibility to affect device reliability. Table 5-1: Absolute Maximum Ratings Chip power input ESD Susceptibility HBM (Human Body Mode)(Note...

Capacitive Touch Sensor Controller 5.2 Recommended Operating Conditions Table 5-2: Recommended Operating Conditions Operating Ambient Temperature Range Operating Junction Temperature Range Storage Ambient Temperature Range VDD to GND input power supply voltage Note: The device is not guaranteed to function outside its operating conditions.

Capacitive Touch Sensor Controller 5.3 DC Characteristics Table 5-3: Input Power Supply (VDD3A=VDD3D=3.3V, Room Temperature) Item Digital input power supply voltage* Analog input power supply voltage 3.3V I/O input power supply voltage* 1.8V I/O input power supply voltage* *If VDDIO & VDD3D is not supplied power, there is risk of I/O pin with current leakage Table 5-4: DC Characteristics (VDD3A=VDD3D=3.3V, Room Temperature) Item Operation current Input High Voltage Hysteresis voltage Input Low Voltage, XT_In Input High Voltage, XT_In Output High Voltage /Reset Positive going threshold, /Reset...

Capacitive Touch Sensor Controller Table 5-5: USB DC Characteristics Item Input High (driven) Differential input sensitivity Differential common-mode range Single-ended receiver threshold Receiver hysteresis Output high (driven) Output signal cross voltage Pull-up resistor Pull-down resistor Termination Voltage for upstream port pull up (RPU) Table 5-6: Crystal Characteristics Item Input clock frequency Condition External crysta

Capacitive Touch Sensor Controller Table 5-7: I2C AC Characteristics Parameter HIGH period of the SCL clock Data hold time Data set-up time START condition Capacitive load for each bus line SCL clock frequency Hold time START condition Set-up time for a repeated START Rise time of both SDA and SCL signals (30% to 70%) Fall time of both SDA and SCL signals (70% to 30%) Set-up time for STOP condition Bus free time between a STOP and Noise margin at the LOW level for each connected device Noise margin at the HIGH level for each connected device *SCL = I2C Host must to support clock stretching mode...

Capacitive Touch Sensor Controller 6. Power Sequence 6.1 Power-on Sequence V Start to report location By USB or I2C 1. T1: the time difference between 0.9*VDD and 0.9*VDDIO. T1 must be ≥ 0 sec. 2. T2: the time difference between 0.9*VDDIO and RSTN. T2 must be ≥ 200 us. 3. T3: the time difference between RSTN and Commands.T3 must be ≥ 150 ms. 4. T4: IC start to report point location to host. T4 must be ≥ 300 ms.

Capacitive Touch Sensor Controller 6.2 Power-off to Power-on Sequence V Tg1 : the time difference between power-off and power-on. Tg1 must be > 10us. Tg2 : the time difference between power-off and power-on. Tg2 must be > 10us. Note. During the power off time, the VDD must be lower than 0.5V that make sure the touch controller have been correctly reset.

Capacitive Touch Sensor Controller 7. Package Information 7.1 QFN-88 Package Dimension Bottom View Figure 7-1: Package Information of QFN-88

Capacitive Touch Sensor Controller Column 1: ILITEK Logo Column 2: Product Code Code 1~4: Model Name Code 5: Package Type, Q: QFN Code 6~9: Package Fab Control Number Column 3: Package Assembly Lot No Column 4: Wafer Lot No