廬
ISL45042
Data Sheet
June 21, 2005
FN6072.3
LCD Module Calibrator
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. Once the desired VCOM
setting is obtained, the settings can be stored in the non-
volatile memory, which would then be automatically recalled
during every power-up.
The VCOM adjustment and non-volatile memory
programming is through a single interface pin. An additional
pin is used to prevent programming.
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 ISL45042 is available in an 8-pin 3mm x 3mm Thin DFN
package with a maximum thickness of 0.8mm for ultra thin
LCD panel design.
Features
鈥?128-Step Adjustable Sink Current Output
鈥?2.6V to 3.6V Logic Supply Voltage Operating Range
鈥?4.5V to 20V Analog Supply Voltage Range
鈥?Rewritable EEPROM for storing the optimum VCOM value
鈥?Output Adjustment Enable/Disable Control
鈥?Output Guaranteed Monotonic Over Temperature
鈥?Two Pin Adjustment, Programming and Enable
鈥?Ultra Thin 8-Pin 3mm x 3mm DFN (0.8mm max)
鈥?Pb-Free Plus Anneal Available (RoHS Compliant)
Applications
鈥?LCD Panels
Ordering Information
PART NO.
ISL45042IR
TEMP.
RANGE (擄C)
-40 to 85
-40 to 85
PACKAGE
8 Ld 3x3 Thin DFN
8 Ld 3x3 Thin DFN
Tape and Reel
8 Ld 3x3 Thin DFN
(Pb-free)
8 Ld 3x3 Thin DFN
Tape and Reel (Pb-free)
PKG.
DWG. #
L8.3x3A
L8.3x3A
Pinout
ISL45042 (THIN DFN)
TOP VIEW
OUT 1
AVDD 2
N/C 3
GND 4
8
7
6
5
SET
CE
CTL
V
DD
ISL45042IR-T
ISL45042IRZ
(Note)
ISL45042IRZ-T
(Note)
-40 to 85
L8.3x3A
-40 to 85
L8.3x3A
NOTE: Intersil Pb-free plus anneal products employ special Pb-free
material sets; molding compounds/die attach materials and 100%
matte tin plate termination finish, which are 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.
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CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
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Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright 漏 Intersil Americas Inc. 2003, 2005. All Rights Reserved.
All other trademarks mentioned are the property of their respective owners.
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