Datasheet - Distec€¦ · I2C slave interface, up to 400Kb/s Built-in oscillator Built-in 1.2V LDO...

The information contained in this document has been carefully researched and is, to the best of our

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Datasheet

ILITEK

ILI2117A

ILI2117A

ILI2117A Capacitive Touch Controller

Datasheet

Version: V1.05 Release Date: Jan. 26.2018

ILI TECHNOLOGY CORP.

8F, No.1, Taiyuan 2nd

St., Jhubei City, Hsinchu County 302,

Taiwan, R.O.C

Tel.886-3-5600099; Fax.886-3-5600055 http://www.ilitek.com

http://www.ilitek.com/

Capacitive Touch Controller ILI2117A

2018/01/26 Page 2 of 13 Version: 1.05 The information contained herein is the exclusive property of ILI Technology Corp. and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of ILI Technology Corp.

List of Chapters

1 DESCRIPTION ................................................................................................................................................ 4

2 FEATURE ........................................................................................................................................................ 4

3 BLOCK DIAGRAM .......................................................................................................................................... 5

4 PIN CONFIGURATION ................................................................................................................................... 6

4.1 QFN48 (5X5MM2, 0.35MM PITCH SIZE) ...................................................................................................... 6

4.2 PINOUT DESCRIPTION ............................................................................................................................... 7

5 ELECTRICAL CHARACTERISTICS ............................................................................................................... 8

5.1 ABSOLUTE MAXIMUM RATINGS .................................................................................................................. 8 5.2 DC CHARACTERISTICS .............................................................................................................................. 8 5.3 ESD INFORMATION ................................................................................................................................... 9 5.4 AC CHARACTERISTICS OF THE SDA AND SCL ON I

2C INTERFACE ................................................................ 9

6 PACKAGE INFORMATION ........................................................................................................................... 10

6.1 QFN48 5X5X0.5MM3 .............................................................................................................................. 10

6.2 MARKING DESCRIPTION .......................................................................................................................... 11

7 APPLICATION ............................................................................................................................................... 12

7.1 POWER ON SEQUENCE ............................................................................................................................ 12 7.2 POWER OFF SEQUENCE .......................................................................................................................... 12



List of Figures Figure 3-1: ILI2117A Block Diagram ..................................................................................................................... 5

Figure 4-1: ILI2117A (QFN48) Package Diagram ................................................................................................. 6

Figure 5-1: The timing of I2C Interface ................................................................................................................. 9

Figure 6-1: Package Information of QFN48 5x5x0.5mm3 .................................................................................. 10

Figure 6-2: Marking Information of QFN48 Package (top view) ......................................................................... 11

Figure 7-1: Power on Sequence ......................................................................................................................... 12

Figure 7-2: Power off Sequence ......................................................................................................................... 12

List of Tables Table 4-1: ILI2117A Pin Assignments .................................................................................................................... 7

Table 5-1: Absolute Maximum Ratings .................................................................................................................. 8

Table 5-2: Power Supply ....................................................................................................................................... 8

Table 5-3: DC Characteristics (Topr = 25℃) ........................................................................................................ 8

Table 5-4: ESD Information ................................................................................................................................... 9

Table 5-5: Characteristics of the SDA and SCL bus lines ..................................................................................... 9

Table 6-1: Package Information .......................................................................................................................... 10

Table 6-2: Marking Information ........................................................................................................................... 11

Table 7-1: Power on Sequence .......................................................................................................................... 12

Table 7-2: Power off Sequence .......................................................................................................................... 12



1 Description

ILI2117A is a single chip capacitive touch controller optimized for Mobile, Tablet, Industrial application. It is a

SOC with specialized 32-bit MCU and 41 programmable channels. ILI2117A is designed to perform the best

performance and supported up to 7” application. The 10-point touch is supported as default setting. Report rate

is up to 100Hz.

2 Feature

Channel: 41 programmable capacitive driving and sensing channel

Package: 48 pin, QFN 5x5mm2_0.35P

32-bit MCU

Flash memory & SRAM embedded

I2C slave interface, up to 400Kb/s

Built-in oscillator

Built-in 1.2V LDO for digital circuit

Programmable INT level: 1.2V, 1.5V, 1.8V and VDD

14-bit ADC

X, Y resolution up to 2048 pixels x 2048 pixels

Automatic background capacitance tracking

Enhance immunity to RF interference and AC charger noise

All sensor pins pass HBM: +/-4KV, MM: +/-400V

Operation Voltage: 2.8V ~ 3.6V

High Sensitivity & Passive Stylus: Sensor pitch x 0.8 and min 4mm

Glove: 2mm PMMA material Passive Stylus

Waterproof

No false point when water drop and mist

2 fingers operation when water mist

Normal operation after wipping water

Support Smart Wake Up

Support Letter (o,w,m,e,c,>,<,V,^,etc.), double click wake up function

User Define

Tools

Sensor Test Tool

FPC Test Tool

Tunning Tool

Cover Glass thickness support up to 3mm

Noise immunity: Sine wave 20Vpp

CS 10V : 2 fingers

EFT: 1KV AC, 0.5KV DC



3 Block Diagram

AFE DIGITAL FUNCTIONS

ANALOG FUNCTIONS

INTERFACE

I2C

GPIO

High Resolution

CDC

Programmable

for Tx/Rx

32-bit MCU

POR

LVDInternal 52M

Oscillator

SRAM

Flash

Watchdog Timers

Regulator

CDC Control

Figure 3-1: ILI2117A Block Diagram



4 Pin Configuration

4.1 QFN48 (5x5mm2, 0.35mm pitch size)

Pin 1

1

22

21

20

19

18

17

16

15

1413

12

11

10

9

8

7

6

5

4

3

2

23

24

28

27

26

25

36

35

34

33

32

31

30

29

48

47

46

45 43

42

41

40

39

37

CAP_SEN

SE03

SCL

CAP_SENSE02

CAP_SENSE00

PVDD_CP

VDD

VDD12

CHIP_EN

SDA

INT

CAP_SEN

SE07

CAP_SEN

SE06

CAP_SEN

SE10

CAP_SEN

SE09

CAP_SEN

SE08

CAP_SEN

SE04

CAP_SEN

SE05

CAP_SEN

SE11

CAP_SEN

SE14

CAP_SEN

SE13

CAP_SEN

SE12

CAP_SEN

SE28

CAP_SEN

SE27

CAP_SENSE26

CAP_SENSE01

38

CAP_SENSE18

CAP_SENSE17CAP_SEN

SE16

CAP_SEN

SE15

CAP_SENSE25

CAP_SENSE24

CAP_SENSE23

CAP_SENSE22

CAP_SENSE21

CAP_SENSE20

CAP_SEN

SE38

CAP_SENSE19CAP_SEN

SE29

CAP_SEN

SE30

CAP_SEN

SE31

CAP_SEN

SE32

CAP_SEN

SE33

CAP_SEN

SE34

CAP_SEN

SE35

CAP_SEN

SE36

CAP_SEN

SE37

44

EXT_CLK

/CAP_SEN

SE40

CAP_SEN

SE39

Figure 4-1: ILI2117A (QFN48) Package Diagram

ILI2117A



4.2 Pinout Description

Table 4-1: ILI2117A Pin Assignments

Pin Out Name Type Description

1 SDA Digital I/O w/ 5V-tolerant I2C Serial Data Input/Output

2 SCL Digital I/O w/ 5V-tolerant I2C Serial Clock Input/Output

3 INT Digital I/O w/ 5V-tolerant Interrupt signal/ Supports output open drain type

4 CHIP_EN Digital Input w/ 5V-tolerant

Chip Enable

(For 5V interface application, a resistor larger than

100ohm should be series connected between the host and

the touch controller.)

5 VDD12 1.2V Power Internally generated digital power supply; connect 1uF

X5R ceramic capacitor to Ground

6 VDD 3.3V Power 2.8V~3.6V power supply; connect 1uF X5R ceramic

capacitor to Ground

7 PVDD_CP High Voltage Power Internally generated high voltage power supply, connect 1uF X5R ceramic capacitor to Ground.

8-47 CAP_SENSE00-

CAP_SENSE40 Analog Input/ Output

Capacitive touch sensor input or driver output; CAP_SENSE40 can also be used as external sync clock input

48 EXT_CLK Digital Input External Sync Clock Input, can also be used as capacitive

touch sensor input or driver output

Note: E-pad should be connected to system GND net.

SDA/SCL supports output open drain type



5 Electrical Characteristics

5.1 Absolute Maximum Ratings

Table 5-1: Absolute Maximum Ratings

Item Symbol Min Typ Max Unit

System power supply voltage VDD 3.6 V

High voltage power supply VPVDD_CP 3.6 3.7 V

Analog input voltage VINANA VDD V

Digital input voltage VINDIG 5 V

Storage temperature TSTG -40 150 ℃

Notes: Stresses above those listed in Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only and does not imply functional operation of the device. Exposure to absolute maximum ratings for extended periods may affect device reliability.

5.2 DC Characteristics

Table 5-2: Power Supply

Item Symbol Min Typ. Max Unit

System power supply voltage VDD 2.8 3.3 3.6 V

Ambient operating temperature TA -40 85 ℃

Junction Temperature TJ 125 ℃

Table 5-3: DC Characteristics (Topr = 25℃)

Item Symbol Min Typ. Max Unit

Input Voltage, High 1 (VIH1)1 1 V

Input Voltage, High 2 (VIH2)2 1.3 V

Input Voltage, Low (VIL) 0.5 V

Output Voltage, High 1 (VOH)3 See Note3 V

Output Voltage, Low (VOL) 0.1 V

Specifications are subjected to change without notice.

Notes:

1. V IH1 includes pins CHIP_EN, SDA, SCL, INT

2. V IH2 includes pin EXT_CLK

3. VOH is for INT output voltage level which is programmable by registers. Typical values are 1.2V/1.5V/1.8V/VVDD.



5.3 ESD Information

Table 5-4: ESD Information

Item Symbol Min Typ. Max Unit Condition

Human Body Mode (HBM) HBM ±4 KV

Machine Mode MM ±400 V

5.4 AC Characteristics of the SDA and SCL on I2C interface

S

SDA

SCL

Sr P S

tf trtftSU;DAT

tHD;STA tHD;DAT tHIGH tSU;STA

tSU;STO

trtSPtHD;STAtLow tBUF

Figure 5-1: The timing of I2C Interface

Table 5-5: Characteristics of the SDA and SCL bus lines

Symbol Parameter 100KHz 400KHz

Min Max Unit Min Max Unit

fSCL SCL clock frequency 0 100 kHz 0 400 KHz

tHD;STA

Hold time (repeated) START condition.

After this period, the first clock pulse is

generated

4.0 – µs 0.6 – µs

tLOW LOW period of the SCL clock 4.7 – µs 1.3 – µs

tHIGH HIGH period of the SCL clock 4.0 – µs 0.6 – µs

tSU;STA Set-up time for a repeated START

condition 4.7 – µs 0.6 – µs

tHD;DAT Data hold time 0 3.45 µs 0 0.9 µs

tSU;DAT Data set-up time 250 – ns 100 – ns

tr Rise time of both SDA and SCL signals – 1000 ns – 300 ns

tf Fall time of both SDA and SCL signals – 300 ns – 300 ns

tSU;STO Set-up time for STOP condition 4.0 – µs 0.6 – µs

tBUF Bus free time between a STOP and

START condition 4.7 – µs 1.3 – µs



6 Package Information

6.1 QFN48 5x5x0.5mm3

(Unit: mm)

Figure 6-1: Package Information of QFN48 5x5x0.5mm3

Table 6-1: Package Information

Symbol Min Normal Max Unit

A 0.40 0.45 0.50 mm

D 4.90 5.00 5.10 mm

E 4.90 5.00 5.10 mm

D2 3.50 - 3.80 mm

E2 3.50 - 3.80 mm

b 0.13 0.18 0.23 mm

e 0.30 0.35 0.40 mm

L 0.30 0.40 0.50 mm



6.2 Marking Description

A

F

G

C D E

B

Figure 6-2: Marking Information of QFN48 Package (top view)

Table 6-2: Marking Information

Symbol Description

A Index PIN

B ILITEK logo

C Product Name：2117A

D Package type：QZ ( QFN )

E Control Code：The code will be updated by production control

F Assembly Lot No.：The code will be updated by production control(1st Code is A)

G Wafer Lot No.：The code will be updated by production control(1st Code is A)



7 Application

7.1 Power on Sequence

Note: After CHIP_EN set to high, INT requires Tset1 to set to inactive state The INT PIN can be defined by touch firmware design. It can be active HIGH or active LOW.

Figure 7-1: Power on Sequence

Table 7-1: Power on Sequence

Parameter Standard Mode

Unit Min Max

Tset1 1.5 ms

Tset2 200 ms

Tvdd2en 100 us

7.2 Power off Sequence

Figure 7-2: Power off Sequence

Table 7-1: Power off Sequence

Parameter Standard Mode

Unit Min Max

Tset3 1 ms



Document Revision History

Version Data Author Description

1.00 2017/02/17 Bert Chang New Create

1.01 2017/04/27 Andrew H. Fixed the VDD、SDA、SCL、INT voltage tolerant

1.02 2017/06/06 Bert change To modify the Feature description

1.03 2017/10/19 Andrew H. Add INT initial status define

1.04 2018/01/02 Andrew H. Fixed the ESD SPEC and IC feature

1.05 2018/01/26 Andrew H. Fixed the ESD SPEC (10V: 2 fingers)

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Datasheet - Distec€¦ · I2C slave interface, up to 400Kb/s Built-in oscillator Built-in 1.2V LDO...

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Transcript of Datasheet - Distec€¦ · I2C slave interface, up to 400Kb/s Built-in oscillator Built-in 1.2V LDO...