ADT6610
ADT6610
Data Sheet
* This specifications are subject to be changed without notice
Aug. 25. 2011
1/21
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ADT6610
Revision History
Version
0.0
-. First Version
Contents
Date
2011. 8. 25
* This specifications are subject to be changed without notice
Aug. 25. 2011
2/21
http://www.ad-tech.co.kr
ADT6610
GENERAL DESCRIPTION
The ADT6610 is a 3-channel constant current LED driver that has a wide
range of output currents. The ADT6610 controls LED brightness with a Pulse
Width Modulation (PWM) scheme that gives the application the capability of
displaying a billion colors in an RGB cluster. The maximum current is set by
an external resistor.
FEATURES
16SOP
• Constant output current range : 5mA to 100mA with three external resistors
• 3 channel constant current LED sink driver for RGB LED clusters
•
Two wire only transmission interface
- Clock re-generation to recover the clock duty cycle
• 8/12/16bit grayscale PWM control
• Supply voltage range : 5 ~ 18V
• Embedded voltage regulator : VDD generation
• Maximum sinking output voltage : 18V
• 5V CMOS compatible input
• Package : SOP16, SSOP16
• Maximum serial input frequency : 10MHz
• Built in internal RC oscillator is 10MHz
• RoHS-compliant package
16SSOP
APPLICATION
•
•
•
•
Channel sign
Architectural lighting
LED curtain display or LED strip
Neon sign replacement
* This specifications are subject to be changed without notice
Aug. 25. 2011
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ADT6610
PIN CONFIGURATION
DI
CKI
STSEL
MODE0
MODE1
REXTA
REXTB
REXTC
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
DO
CKO
VCC
VDD
GND
OUTA
OUTB
OUTC
PIN DESCRIPTION
PIN NO.
1
2
3
STSEL
PIN NAME
DI
CKI
Input terminal for serial data input.
Input terminal for serial clock input.
Waiting time selection pin for strobe signal.
L
H
4,5
20us
5ms
FUNCTION
Input data transfer mode selection.
MODE1
L
MODE0, MODE1
L
H
H
H
L
H
12 bit luminance data transfer
Reserved
16 bit luminance data transfer
MODE0
L
descriptions
8 bit luminance data transfer
6,7,8
REXTA, REXTB, REXTC
OUTC, OUTB, OUTA
GND
VDD
VCC
CKO
DO
External resistors are connected between those pins and GND for driver
current setting.
Output terminal for constant current output.
GND
Regulator output voltage.
High supply voltage.
Output terminal for serial clock output.
Output terminal for serial data output when CKI is ‘L”.
9,10,11
12
13
14
15
16
* This specifications are subject to be changed without notice
Aug. 25. 2011
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http://www.ad-tech.co.kr
ADT6610
BLOCK DIAGRAM
OUTA
OUTB
OUTC
REXTA
REXTB
REXTC
Comparator B
Comparator C
Comparator A
Reference
Current
PWM
Counter
Oscillator
16 bit Display Data Register
16 bit Display Data Register
16bit Control Data Register
VDD
Regulator
VCC
Strobe
Generator
16
16
16
24/36/48 bit Data Register
16
DI
16
16
DO
48 bit Shifter Register
CKO
CKI
Bit
Selection
GND
MODE0 MODE1
* This specifications are subject to be changed without notice
Aug. 25. 2011
5/21
http://www.ad-tech.co.kr
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