Overview

Description

The VCOM 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 VCOM buffer amplifier. The desired VCOM 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 3mm x 3mm 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.

Features

  • 128-step adjustable sink current output
  • 2.25V to 3.6V logic supply voltage operating range (2.6V minimum programming voltage)
  • 4.5V to 18V analog supply voltage operating range (10.8V minimum programming voltage)
  • I2C interface with addresses 100111x and 100110x
  • On-chip 7-bit EEPROM
  • Output adjustment SET pin
  • Output guaranteed monotonic over-temperature
  • Thin 8 Ld 3mm x 3mm DFN (0.8mm max)
  • Pb-free (RoHS compliant)

Comparison

Applications

Applications

  • LCD panels

Documentation

Type Title Date
Datasheet PDF 520 KB
Application Note PDF 564 KB
Product Advisory PDF 363 KB
Product Change Notice PDF 151 KB
Product Change Notice PDF 223 KB
Product Change Notice PDF 269 KB
Application Note PDF 298 KB
Application Note PDF 357 KB
8 items

Design & Development

Boards & Kits

Boards & Kits

Models