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.
应用
◆TFT LCD Panels
数据参数
数据参数
电压参数(V)
6.5~18
压摆率(V/uS)
10
输出短路电流(mA)
±100
电源抑制比(dB)
-
特点
14+1
封装
TQFN-32 (5*5)
特征
特征
◆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