NCS12802 Datasheet, PDF (1/21 Pages) ON Semiconductor – Programmable Gamma Voltage Reference Generator with Integrated Auto-read

NCS12802
12-Channel I²C
Programmable Gamma
Voltage Reference
Generator with Integrated
Auto-read
The NCS12802 is a 12− channel programmable voltage reference
generator providing the gamma correction references to the
TFT−LCD panel through the source driver circuit.
The twelve output voltage references are programmed through an
I²C interface which can operate at standard and high speed. The output
buffers can be finely tuned due to the 10 bit DAC precision (1024
steps). In addition, the NCS12802 features an auto−read function
which allows uploading binary data from an external EEPROM. To
support this capability, the device can act as both slave and master I²C.
In order to accelerate the dynamic correction process, the
NCS12802 has two separate register banks. It can simultaneously
store two different curves.
The NCS12802 is proposed in a QFN24 package and an operating
temperature range from −40°C to +95°C.
Features
• 12−Channel Gamma Generator
• 1024−step Resolution (10 bits)
• Dual Bank
• Rail−to−Rail Outputs
• Auto−read Function to Communicate with External EEPROM
• Two Wire Digital Programming Interface
• Low Power Supply Current of 800 mA per Channel
• Digital Power Supply from 2.3 V to 5.0 V
• Operating Voltage from 9 V to 17.5 V
• I²C Programming Interface (Standard and Fast−Speed)
• ESD Human Body Model Protection 2 kV,
Machine Model 300 V
• Operating Temperature Range: −40°C to +95°C
• Available in a QFN−24 Package with Exposed Pad
• This is a Pb−Free Device*
Typical Application
• TFT−LCD TV Panels
• LCD Monitor Panels
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
http://onsemi.com
24 PIN QFN, 4x4
MN SUFFIX
CASE 485L
MARKING
DIAGRAM
1
NCS
12802
ALYWG
G
A
= Assembly Location
L
= Wafer Lot
Y
= Year
W
= Work Week
G
= Pb−Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
Device
Package
Shipping^†
NCS12802MNTXG QFN−24 3000 / Tape &
(Pb−Free)
Reel
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
© Semiconductor Components Industries, LLC, 2012
1
June, 2012 − Rev. 0
Publication Order Number:
NCS12802/D