041Z Marking, ISL45041IRZ datasheet(1/8 Pages) RENESAS

Part #	ISL45041IRZ

Description	TFT-LCD I2C Programmable VCOM Calibrator

PDF	8 Pages

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Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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1 / 8 page

FN6189 Rev 6.00

Page 1 of 8

Apr 22, 2016

FN6189

Rev 6.00

Apr 22, 2016

ISL45041

TFT-LCD I2C Programmable VCOM Calibrator

DATASHEET

The VCOM voltage of an LCD panel needs to be adjusted to

remove flicker. The ISL45041 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 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

AN1275 and “Ordering Information” on page 2.

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 3mmx3mm DFN (0.8mm max)

• Pb-free (RoHS compliant)

Applications

•LCD panels

Related Literature

• AN1208 “LCD screens don't flicker - or do they?”

• AN1275, “ISL45041EVAL1Z User’s Manual”

FIGURE 1. BLOCK DIAGRAM

GND

I2C

INTERFACE

DAC

REGISTERS

ANALOG DCP

AND

CURRENT SINK

7-BIT EEPROM

SCL

SDA

WP

VDD

AVDD

OUT

SET

1

8

2

5

7

6

3

4

ISL45041

CURRENT SINK

Q1

A1

Similar Description - ISL45041IRZ

Manufacturer	Part #	Datasheet	Description
Maxim Integrated Produc...	MAX1512	682Kb / 12P	EEPROM-Programmable TFT VCOM Calibrator Rev 2; 8/04
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	ISL45041	489Kb / 7P	TFT-LCD I2C Programmable VCOM Calibrator August 12, 2010
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	ISL45041_1012	352Kb / 7P	TFT-LCD I2C Programmable VCOM Calibrator December 17, 2010
	ISL45041IRZ	278Kb / 8P	TFT-LCD I2C Programmable VCOM Calibrator October 30, 2014
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