ISL45041_1012 Datasheet, PDF (1/7 Pages) Intersil Corporation – TFT-LCD I2C Programmable VCOM Calibrator

®
Data Sheet
TFT-LCD I²C Programmable VCOM
Calibrator
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 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. Reference Application Note
AN1275 and “Ordering Information”.
Ordering Information
TEMP.
PART NUMBER PART RANGE
(Notes 1, 2, 3) MARKING (°C)
PACKAGE
(Pb-Free)
PKG.
DWG. #
ISL45041IRZ
041Z
0 to +85 8 Ld 3x3 TDFN L8.3x3A
ISL45041EVAL1Z Evaluation Board
NOTE:
1. Add “-T*” suffix for tape and reel. Please refer to TB347 for details
on reel specifications.
2. These Intersil Pb-free plastic packaged products employ special
Pb-free material sets, molding compounds/die attach materials,
and 100% matte tin plate plus anneal (e3 termination finish,
which is RoHS compliant and compatible with both SnPb and
Pb-free soldering operations). Intersil Pb-free products are MSL
classified at Pb-free peak reflow temperatures that meet or
exceed the Pb-free requirements of IPC/JEDEC J STD-020.
3. For Moisture Sensitivity Level (MSL), please see device
information page for ISL45041. For more information on MSL,
please see Technical Brief TB363.
December 17, 2010
ISL45041
FN6189.4
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)
Applications
• LCD Panels
Pinout
ISL45041
(8 LD TDFN)
TOP VIEW
OUT 1
AVDD 2
WP 3
GND 4
PAD
8 SET
7 SCL
6 SDA
5 ^VDD
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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