
Maxim Integrated
General Description
The MAX8738 is an I2C-programmable VCOM-adjustment solution for thin-film transistor (TFT) liquid-crystal displays (LCDs). The MAX8738 simplifies the labor-intensive VCOM-adjustment process and replaces mechanical potentiometers, which significantly reduces labor costs, increases reliability, and enables automation.
FEATUREs
♦ 7-Bit Adjustable Sink-Current Output
♦ Resistor-Adjustable, Full-Scale Range
♦ Guaranteed Monotonic Output Over Operating
Range
♦ 2-Wire I2C Interface
♦ EEPROM Stores VCOM Setting
♦ 4.5V to 20V Analog Supply Voltage Range
(VAVDD)
♦ 60µA (max) AVDD Supply Current
♦ 16.1V to 28V EEPROM Programming Supply
Voltage Range (VHV)
♦ <1µA HV Supply Current (Not in Program Mode)
♦ 8-Pin µMAX
APPLICATIONs
LCD Panels
Notebook Computers
Display Products
LCD TVs