G1614 Global Mixed-mode Technology Programmable 12+1+1 Channel Voltage Buffers with NVM for TFT LCD Features Non-Volatile Memory (NVM) Store Setting (at Supply Operation Range : 9V to 20V Least 100 Re-Write Times) 12+1+1 Channels : QFN4X4-24 Package ---12 Channel Rail-to-Rail Programmable Gamma Buffers 10 bits Resolution for each Channel 25mA Output Current for each Channel ---1 Channel Rail-to-Rail Vcom Buffer: 10 Bits Adjustable Output ±100mA Output Current ±300mA Output Short-Circuit Current 50V/μs Slew Rate Programmable VCOM Limits ---1 Channel Rail-to-Rail Repair OP: ±30mA Output Current ±100mA Output Short-Circuit Current 15V/μs Slew Rate ---2 Banks Registers Using BKSEL to Select which Bank Data Output 2 2-Wire I C Slave Mode Interface Applications TFT-LCD Monitors LCD Televisions General Description The G1614 consists of 12+1+1 channel buffers target toward the needs of thin film transistor liquid crystal display (TFT LCD). This device incorporates 12 gamma buffers, one Vcom buffer and one repair op which can be programmed through I2C interface. It contains two register banks which can store two different sets of gamma and VCOM values. Each buffer is capable of driving heavy capacitive loads and offering large current loading (Vcom: 100mA, Gammas: 25mA). The G1614 is available in the QFN4X4-24 package. Ordering Information ORDER NUMBER MARKING TEMP. RANGE PACKAGE (Green) G1614Q51U 1614 -40°C to 85°C QFN4X4-24 Note : Q5:QFN4X4-24 1: Bonding Code U: Tape & reel Pin Configuration Typical Application Circuit 18V AVDD1 8 DAC Reference GMA9 REF REF REF 19 GMA11 GMA12 GMA10 20 21 AVDD2 22 23 24 VCOM VREF AGND 1 18 GMA8 DVDD 2 17 GMA7 SCL 3 16 OPO SDA 4 15 OPI Thermal Pad 9 10 11 12 GMA1 GMA2 GMA3 GMA4 GMA5 8 GMA6 13 7 14 6 AGND 5 A0 AVDD1 BKSEL Bank1 GAMMA VCOM Bank1 GAMMA VCOM Bank1 GAMMA VCOM 10-BIT DAC 9 GMA1 10-BIT DAC 10 GMA2 10-BIT DAC 11 GMA3 10-BIT DAC 12 GMA4 10-BIT DAC 13 GMA5 10-BIT DAC 14 GMA6 16 OPO 15 MUX OPI Source Driver LCD PANEL 18V 23 AVDD2 Bank2 GAMMA VCOM G1614 QFN4X4-24 I2C REG MTP REG Bank2 GAMMA VCOM DAC REG Note: Recommend connecting the Thermal Pad to the Ground for excellent power dissipation. DVDD SCL SDA A0 2 3 4 6 I2C INTERFACE 10-BIT DAC 17 GMA7 10-BIT DAC 18 GMA8 10-BIT DAC 19 GMA9 10-BIT DAC 20 GMA10 10-BIT DAC 21 GMA11 10-BIT DAC 22 GMA12 24 VCOM 10-BIT DAC 1,7 5 AGND BKSEL Ver: 0.1 Jan 13, 2014 TEL: 886-3-5788833 http://www.gmt.com.tw 1