• 128-Step Adjustable Sink Current Output
• 2.25V to 3.3V Logic Supply Voltage Operating Range (2.25V Minimum Programming Voltage)
• Analog Supply Voltage Range 4.5V to 18V for VDD from 2.6V to 3.6V; 4.5V to 13V for VDD from 2.25V to 2.6V
• I²C Interface (Slave and Transmitter) - Address: 1001111
• On-Board 7-Bit EEPROM
• Output Adjustment SET Pin
• Output Guaranteed Monotonic Over-Temperature
• Thin 8 Ld 3mmx3mm DFN (0.8mm max)
• Pb-free available (RoHS compliant)

The V_COM voltage of an LCD panel needs to be adjusted to remove flicker. This part provides a digital interface to control the sink-current output that attaches to an external voltage divider. The increase in output sink current lowers the voltage on the external divider, which is applied to an external V_COM buffer amplifier. The desired V_COM setting is loaded from an external source via a standard 2-wire I²C serial interface. At power up the part automatically comes up at the last programmed EEPROM setting.

An external resistor attaches to the SET pin, and sets the full-scale sink current that determines the lowest voltage of the external voltage divider.

The ISL45041 is available in an 8 Ld 3mmx3mm TDFN package with a maximum thickness of 0.8mm for ultra thin LCD panel design.

An evaluation kit complete with software to control the DCP from a computer is available. Reference Application note AN1207 and Ordering Information.

• LCD Panels