ISL45042
®
Data Sheet
August 29, 2007
FN6072.7
LCD Module Calibrator
Features
The V
COM
voltage of an LCD panel needs to be adjusted to
• 128-Step Adjustable Sink Current Output
• 2.6V to 3.6V Logic Supply Voltage Operating Range
• 4.5V to 20V Analog Supply Voltage Range
remove flicker. The ISL45042 can be used to digitally adjust
a panel’s V voltage by controlling its output sink current.
COM
The output of the ISL45042 is connected to an external
voltage divider and an external V buffer amplifier. In this
COM
application, the user can control the V
• Rewritable EEPROM for Storing the Optimum VCOM
Value
voltage with 7-Bit
COM
accuracy (128 steps). Once the desired V
setting is
COM
• Output Adjustment Enable/Disable Control
• Output Guaranteed Monotonic Over-Temperature
• Two Pin Adjustment, Programming and Enable
• Ultra Thin 8 Ld 3mmx3mm DFN (0.8mm max)
• Pb-free Available (RoHS compliant)
obtained, the settings can be stored in the non-volatile
EEPROM memory, which would then be automatically
recalled during every power-up.
The V
COM
adjustment and non-volatile memory
programming is through a single interface pin (CTL). Once
the desired programmed value is obtained, the Counter
Enable pin (CE) can be used to prevent further adjustment
or programming.
Applications
• LCD Panels
The full-scale sink current of the ISL45042 is set using an
external resister connected to the SET pin. The full-scale
sink current determines the lowest voltage of the external
voltage divider.
Ordering Information
TEMP.
PART
RANGE
(°C)
PKG.
DWG. #
The ISL45042 is available in an 8 Ld 3mmx3mm TDFN
package with a maximum thickness of 0.8mm for ultra thin
LCD panel design.
PART NUMBER MARKING
PACKAGE
ISL45042IR
042I
042I
-40 to +85 8 Ld 3x3 TDFN
L8.3x3A
L8.3x3A
ISL45042IR-T*
-40 to +85 8 Ld 3x3 TDFN
Tape and Reel
Pinout
ISL45042
(8 LD TDFN)
TOP VIEW
ISL45042IRZ
(Note)
042Z
-40 to +85 8 Ld 3x3 TDFN
(Pb-free)
L8.3x3A
L8.3x3A
OUT
AVDD
N/C
1
2
3
4
8
7
6
5
SET
CE
ISL45042IRZ-T* 042Z
(Note)
-40 to +85 8 Ld 3x3 TDFN
Tape and Reel
(Pb-free)
CTL
VDD
ISL45042IRZ-TK* 042Z
(Note)
-40 to +85 8 Ld 3x3 TDFN
Tape and Reel
L8.3x3A
GND
(Pb-free)
*Please refer to TB347 for details on reel specifications.
NOTE: 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.
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2003, 2005, 2006, 2007. All Rights Reserved.
1
All other trademarks mentioned are the property of their respective owners.
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