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概述
The LP6298 providers a 14-channel programmable gamma buffer and 1-channel 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 LP6298 also features a programmable operational amplifier that drives the LCD VCOM. This unity-gain buffer is capable of rail-to-rail output, fast slew rate, and ±140mA output short-circuits current. The VCOM buffer voltage is IIC programmed using 7-bit resolution.The LP6298 includes EEPROM to store gamma codes and VCOM codes, and control it through IIC interface at the real time. The LP6298 is available in a space saving QFN24 (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)
8
输出短路电流(mA)
±70
电源抑制比(dB)
-
特点
14+1
封装
TQFN-24 (4*4)
特征
特征
◆IIC Interface Control (0x74, 0x75)
◆Integrated EEPROM
◆Input Supply Voltage Range
◆2.9V to 3.6V Logic Supply Range
◆6.5V to 18V Analog Supply Range
◆14-Channel Programmable Gamma Buffers
◆10-Bit, 1024-Step Resolution
◆±70mA Output Short Current
◆±20mA Operation Current
◆8V/μs Slew Rate
◆1-Channel Programmable VCOM Buffer
◆7-Bits, 128-Step Current Output
◆±140mA Output Short Current
◆±70mA Operation Current
◆25V/μs Slew Rate
◆Protection Function
◆Under Voltage Lockout
◆Short Circuit Protection
◆Over Temperature Protection
◆Check Sum Function
◆Available in QFN-24 (4mm×4mm)
◆RoHS Compliant and Halogen Free
◆Pb-Free Package
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