1-Key Capacitive Touch Controller - AWINIC
Description
AW9119
Jan.
2019 V1.
4
1-Key Capacitive Touch Controller Integrated with 9-LED Driver
FEATURES
1 Capacitive key with sensitivity configurable
GENERAL DESCRIPTION
AW9119 integrates 1 capacitive sensor and a
l
RF Noise Filter Tap Gesture detection (Single/Double click) Automatic Calibration for Environmental Change Intrinsic Capacitance Compensation 8-level LED Maximum Current for each LED,
tia SRAM program-controlled 9 LED driver.
By special
programming and register configuring，the touch or gesture can trigger predefined lighting program to generate funny and complicated LED effect, without the aid of external MCU.
max 24.
5mA 256-level Linear/Logarithmic PWM Dimming,9
bits PWM resolution Capacitive Touch status trigger internal LED
program to create complicated touch feedback
The
capacitive
sensor
n takes advantage
of
e advanced Sigma-delta capacitance digital
conversion technology to achieve high sensitivity and anti-noise capacitance detection.
With internal
Compatible I2C Interface, VIO: 1.
8V ~ 3.
3V Single Power Supply, 3.
0V ~ 4.
5V 3mm×3mm QFN20L Package
APPLICATIONS
Mobile Phones, MID Portable Media Player
fid DSP algorithm, the touch and gesture event can be
detected and reported in status register and external interrupt pin.
9 LED driver uses common anode current source
nand PWM dimming.
Each LED is 8-level driver
current selectable with dimming independently
ocontrolled by external MCU 256word*16bit SRAM program.
or
internal
Home Appliances
C
Compatible I2C interface of 400kHz fast mode is provided, the package is 3mm×3mm QFN20L.
It requires only 3.
0V-4.
5V single power supply.
ic TYPICAL APPLICATION CIRCUIT VBAT
in
VBAT 1mF
GND
LED1 LED2 LED3
GND
LED4
aw
MCU
VIO
SCL
4.
7kΩ x3
GND
LED5
LED6
AW9119 LED7
LED8
LED9
SCL
CX
SDA
SDA
REXT
INTN GPO
INTN PDN
CINT
500Ω
10kΩ 4.
7nF
KEY PAD
Figure 1
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www.
awinic.
com.
cn
AW9119 Typical Application...
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