The LP6299 providers a 14-channel programmable gamma buffer and a programmable VCOM buffer for applications in TFT-LCD Panel.Each of the 14-channel gamma buffers is generated using a 10-bit resolution digital-to-analog converter together with a buffer through IIC control.The 14-channel gamma buffer support dynamic switching between two gamma curves by selecting BANK select pin.

The LP6299 also features a programmable operational amplifier that drives the LCD VCOM.This unity-gain buffer is capable of rail-to-rail input and output,fast slew rate,and±150mA output short-circuit current.The VCOM buffer voltage is IIC programmed using 7-bit resolution.

The LP6299 includes EEPROM to store two gamma codes and VCOM codes,and control it through IIC interface at the real time.The LP6299 is available in a space saving QFN32(0.5mm pitch)package.

1,Features
◆IIC Interface Control
◆Input Supply Voltage Range
-2.3V to 3.6V Logic Supply Range
-6.5V to 18V Analog Supply Range
◆14-Channel Programmable Gamma Buffers
-10-Bit,1024-Step Resolution
-±100mA Output Short Circuit
-10V/μs Slew Rate
-Two Bank Select
◆1-Channel Programmable VCOM Buffer
-7-Bits,128-Step Current Output
-±150mA Output Short Circuit
-20V/μs Slew Rate
◆Integrated EEPROM
◆Available in QFN-32(5 mm×5mm)
◆RoHS Compliant and Halogen Free
◆Pb-Free Package.

2,Applications
◆TFT LCD Panels