MAX9665

19-5000; Rev 4; 7/10 MAX9665/MAX9666/MAX9667 6/8/10-Channel, 10-Bit, Nonvolatile Programmable Gamma and VCOM Reference Voltages General Description The MAX9665/MAX9666/MAX9667 provide multiple programmable reference voltages for gamma correction in TFT LCDs and a programmable reference voltage for VCOM adjustment. All gamma and VCOM reference voltages have a 10-bit digital-to-analog converter (DAC) and buffer with high peak current. This reduces the recovery time of the output voltage when critical levels and patterns are displayed. These devices include multiple-time programmable (MTP) memory to store gamma and VCOM codes on the chip, eliminating the need for external EEPROM. The MTP memory supports up to 300 write operations. The MAX9665/MAX9666/MAX9667 feature an I2C interface to control the programmable reference voltages and a single-wire interface to toggle the VCOM reference voltage up or down. Applications TFT LCDs Ordering Information PART GAMMA CHANNELS TEMP RANGE PINPACKAGE MAX9665ETP+ 6 -40°C to +85°C 20 TQFN-EP* MAX9666ETP+ 8 -40°C to +85°C 20 TQFN-EP* MAX9667ETP+ 10 -40°C to +85°C 20 TQFN-EP* +Denotes a lead(Pb)-free/RoHS-compliant package. *EP = Exposed pad. Pin Configurations OUT0 N.C. OUT1 N.C. OUT2 TOP VIEW 15 14 13 12 11 Features o 6/8/10 Channels Gamma Correction, 10-Bit Resolution o VCOM Driver o Integrated Multiple-Time Programmable Memory o DAC Reference Input o Single-Wire and I2C Programming of VCOM Reference o 950mA Peak Transient Cur...