AW9110B
Nov. 2017 V1.1
10-LED Driver and GPIO Controller
FEATURES
10-channel LED constant-current driver, each
channel can be used for GPIO
OUT0~OUT5 support 2 intelligent breathing
mode: BLINK and SMART-FADE, breathing
time is adjustable
Support 256 steps linearity dimming, I
MAX
is
37mA
Support GPIO input/output mode
GPIO input mode, internal 8
μ
s debounce
Standard I
2
C interface
I
2
C interface and GPIO can operate at 1.8V
Support shutdown function, low level effective
Simple Voltage Range VCC: 2.5V~5.5V
TQFN 3mmX3mmX0.75mm-20L Package
When OUTx(x=0~9) works in a GPIO input mode,
AW9110B detected input state to occur interrupt
with internal
8
μ
s
debounce.
AW9110B supports two intelligent breathing modes:
BLINK mode and SMART-FADE mode. BLINK
mode allows LED automatic to flash periodically
according the setting time parameter. OUT0~OUT5
support intelligent breathing mode.
AW9110B is available in TQFN3X3-20L package.
The operating voltage range is 2.5V~5.5V.
GENERAL DESCRIPTION
AW9110B is a 10-channel LED controller with I
2
C
interface. Each channel can be used for GPIO. LED
dimming combined with extended GPIO function,
which can give full play to the application value of
single chip.
AW9110B configures the current level to realize 256
steps linear dimming with I
2
C interface. The default
I
MAX
current is 37mA. AW9110B strengthens the
dropout performance of low 6 channel LED driver
and only 60mV current source voltage drop can
provide 20mA LED current that can make it more
suitable for the driver of LCD backlight.
APPLICATIONS
Mobile Phones/ Portable Media Player
Home Appliances
TYPICAL APPLICATION CIRCUIT
VCC
MCU
V
BAT
4.7kΩ(x2)
VCC
SCL
SDA
SHDN
VCC
OUT0
OUT1
OUT2
RGB
OUT3
OUT4
OUT5
RGB
MCU
GND
V
BAT
AW9110B
OUT6
AD1
AD0
INTN
GND
OUT7
OUT8
OUT9
LED
Figure 1
All trademarks are the property of their respective owners.
AW9110B Typical Application Circuit
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1
Copyright © 2014 SHANGHAI AWINIC TECHNOLOGY CO., LTD
AW9110B
Nov. 2017 V1.1
1 PIN CONFIGURATION AND TOP MARK
AW9110B TOP VIEW
OUT9
OUT8
AW9110B MARKING
AD0
19
SCL
20
18
NC
17
SDA
1
2
3
4
5
10
16
15
14
13
GND
OUT7
OUT6
OUT5
OUT4
VCC
GND
INTN
SHDN
9110B
XXXX
9110B-AW9110BTQR
XXXX-Manufactory Trace No
12
11
6
AD1
7
8
OUT1
9
OUT0
OUT2
2 PIN DEFINITION
NO
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
NAME
SDA
VCC
GND
INTN
SHDN
AD1
OUT0
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
OUT7
GND
OUT8
OUT9
NC
AD0
SCL
DESCRIPTION
Serial Data I/O for I
2
C Interface
Power Supply
Power Ground
Interrupt Output, Low Active
Shutdown Pin, Low Active
I
2
C Address Pin
Defaults to GPIO, LED driver configurable, support intelligence breathing mode. The default state
after power on according to the level of AD1/AD0 PIN
Defaults to GPIO, LED driver configurable, support intelligence breathing mode. The default state
after power on according to the level of AD1/AD0 PIN
Defaults to GPIO, LED driver configurable, support intelligence breathing mode. The default state
after power on according to the level of AD1/AD0 PIN
Defaults to GPIO, LED driver configurable, support intelligence breathing mode. The default state
after power on according to the level of AD1/AD0 PIN
Defaults to GPIO, LED driver configurable, support intelligence breathing mode. The default state
after power on according to the level of AD1/AD0 PIN
Defaults to GPIO, LED driver configurable, support intelligence breathing mode. The default state
after power on according to the level of AD1/AD0 PIN
Defaults to GPIO, LED driver configurable. The default state after power on according to the level
of AD1/AD0 PIN
Defaults to GPIO, LED driver configurable. The default state after power on according to the level
of AD1/AD0 PIN
Power Ground
Defaults to GPIO, LED driver configurable. The default state after power on according to the level
of AD1/AD0 PIN
Defaults to GPIO, LED driver configurable. The default state after power on according to the level
of AD1/AD0 PIN
NC
I
2
C Address Pin
Serial Clock Input for I
2
C Interface
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2
OUT3
Copyright © 2014 SHANGHAI AWINIC TECHNOLOGY CO., LTD
AW9110B
Nov. 2017 V1.1
3 FUNCTIONAL BLOCK DIAGRAM
VCC
GND
POR
OSC
INTN
Interrupt
Logic
LP Filter
OUT0
OUT1
AD0
AD1
SCL
SDA
I
2
C
I/F
Cfg
Register
OUT2
CURRENT
SOURCE
LED DRIVE
AND GPIO
PORT
OUT3
OUT4
OUT5
OUT6
OUT7
OUT8
OUT9
GPIO CTL
Register
DIMx
Register
BLINK
SMART-
FADE
AW9110B
Figure 2
FUNCTIONAL BLOCK DIAGRAM
4 TYPICAL APPLICATION CIRCUITS
4.1 Using single chip to realize 10-LED breathing or 6 LCD backlight control
VCC
MCU
V
BAT
6-LCD Backlight or
Breathing LED
4.7kΩ(x2)
VCC
SCL
SDA
SHDN
VCC
OUT0
OUT1
OUT2
2
RGB LED
MCU
RGB LED
OUT3
OUT4
OUT5
4 white or colour
breathing LED
GND
V
BAT
1
AW9110B
OUT6
OUT7
OUT8
OUT9
AD1
AD0
INTN
GND
1. When the anode of LED is connected to VBAT, AD1/AD0 of the chip should be connected to VBAT to ensure the default electricity
state of GPIO is high or high resistance and the LED will be off. The default electricity state of GPIO is decided by AD1/AD0 level.
2. In AW9110B, the dropout performance of low 6-leds are strengthened, we suggest
these leds can be used when driving LCD backlight.
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Copyright © 2014 SHANGHAI AWINIC TECHNOLOGY CO., LTD
AW9110B
Nov. 2017 V1.1
4.2 Using single chip to realize 8-RGB control
VCC
MCU
V
BAT
1uF
4.7kΩ(x2)
VCC
SCL
SDA
SHDN
VCC
OUT6
OUT7
OUT8
OUT9
1
MCU
RGB1
RGB3
RGB5
RGB6
RGB2
RGB4
GND
AW9110B
OUT0
OUT1
OUT2
OUT3
OUT4
OUT5
AD1
AD0
INTN
GND
1.When choosing this application, we must pay attention to the restrictions of light effect. If we need the led turn on at the same time and
they are different color type, the led cathode cannot be connected to the same OUTx pin. Because the Vf of RGB is different; When we
turn on RGB1 and RGB4 at the same time, RGB2 and RGB3 will be turned on. Because the anode and cathode of RGB1/2/3/4 are all on.
So pay attention to the lighting effects when designing the hardware.
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Copyright © 2014 SHANGHAI AWINIC TECHNOLOGY CO., LTD
RGB7
RGB8
AW9110B
Nov. 2017 V1.1
4.3 Using two chips to realize driving more LED
VCC
MCU
4.7kΩ(x2)
V
BAT
1uF
VCC
MCU
VCC
OUT6
OUT7
SCL
OUT8
SDA
SHDN
OUT9
RGB2
RGB4
RGB5
RGB6
RGB7
RGB8
RGB8
RGB1
RGB3
GND
AW9110B
1
OUT0
OUT1
AD1 OUT2
AD0 OUT3
OUT4
INTN OUT5
GND
V
BAT
1uF
VCC
OUT6
OUT7
SCL OUT8
SDA
SHDN
OUT9
RGB2
RGB3
RGB4
RGB6
RGB1
RGB5
RGB7
AW9110B
1
AD1
AD0
INTN
GND
OUT0
OUT1
OUT2
OUT3
OUT4
OUT5
1. The AD configurations are different, so 2 AW9110B can share the same I
2
C bus.
2. When configuring the connection of AD1/AD0, the default electricity state of OUTx pin must be considered to avoid led on directly after
AW9110B power on.
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Copyright © 2014 SHANGHAI AWINIC TECHNOLOGY CO., LTD