DATA SHORT
To request the full datasheet, please visit
www.intersil.com/products/isl24858
ISL24858
15-Channel I
2
C Programmable TFT-LCD Reference Voltage Generator with Integrated
EEPROM, and Ultra-Low Power Operation
The ISL24858 is a programmable reference voltage generator
for TFT-LCDs featuring ultra-low power operation. The
ISL24858 contains an I
2
C programmable, 10-bit, 14-channel
gamma reference voltage generator with buffered outputs, a
10-bit programmable V
COM
calibrator, a high output current
V
COM
amplifier, and internal EEPROM to store all reference
voltage data. The EEPROM features an endurance of 10,000
write cycles.
Combining gamma and V
COM
reference voltage generators
with low power operation and EEPROM, the ISL24858 provides
a complete reference voltage solution ideal for tablet, monitor,
and mobile TFT-LCD applications.
The ISL24858 is available in a super thin 28 Ld 4x5mm
X2QFN thermally enhanced package. It is specified for
operation over the -40°C to +105°C ambient temperature
range.
FN8295
Rev 2.00
August 2, 2012
Features
• 15-Channel Reference Voltage Outputs, I
2
C Programmable:
- 14-Channel Gamma References, 10-bit Resolution with
Buffered Outputs
- 1-Channel V
COM
Calibrator with 10-bit Resolution
• High Output Current V
COM
Amplifier
• Ultra-low Power Operation, Ideal for Tablet and Mobile
Applications: Typical Quiescent Power, 12mW @ 8V A
VDD
• EEPROM Endurance: 10,000 Write Cycles
- Read/Write Capable Over 2.25V to 3.6V D
VDD
Range
• 6.3V to 19V Analog Supply Operating Range
• 2.25V to 3.6V Digital Supply Operating Range
• 28 Ld 4x5mm Super Thin X2QFN Package
• Pb-free (RoHS Compliant)
Applications
• Tablet, Notebook, Monitor TFT-LCD
• Mobile - 2D/3D TFT-LCD
• General-Purpose Reference Voltage Generator
GAMMA
T F T -L C D P A N E L
T IM IN G
CONTRO L
(T C O N )
C O L U M N D R IV E R S
IS L 2 4 8 5 8
G A M M A B U F F E R (C O L U M N
D R IV E R D A C R E F E R E N C E
V O L T A G E S ), A N D V
C O M
R E FE R EN C ES
GATE
D R IV E R S
DATA
L IN E
SE LE C T
L IN E
TFT
T F T -L C D S C R E E N
STORAGE
C A P A C IT O R
L C P IX E L
V
COM
C A L IB R A T O R
V
COM
D R IV E R
COMMON
(V
C O M
)
FIGURE 1. TYPICAL APPLICATION: TFT-LCD REFERENCE VOLTAGE GENERATOR
FN8295 Rev 2.00
August 2, 2012
Page 1 of 2
ISL24858
© Copyright Intersil Americas LLC 2012. All Rights Reserved.
All trademarks and registered trademarks are the property of their respective owners.
For additional products, see
www.intersil.com/en/products.html
Intersil products are manufactured, assembled and tested utilizing ISO9001 quality systems as noted
in the quality certifications found at
www.intersil.com/en/support/qualandreliability.html
Intersil products are sold by description only. Intersil may modify the circuit design and/or specifications of products at any time without notice, provided that such
modification does not, in Intersil's sole judgment, affect the form, fit or function of the product. Accordingly, the reader is cautioned to verify that datasheets are
current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its
subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see
www.intersil.com
FN8295 Rev 2.00
August 2, 2012
Page 2 of 2
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