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ICL7663S Datasheet(PDF) 8 Page - Intersil Corporation

Part No. ICL7663S
Description  CMOS Programmable Micropower Positive Voltage Regulator
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Maker  INTERSIL [Intersil Corporation]
Homepage  http://www.intersil.com/cda/home
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ICL7663S Datasheet(HTML) 8 Page - Intersil Corporation

   
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All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems.
Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality
Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without
notice. Accordingly, the reader is cautioned to verify that data sheets 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
FN3180.5
July 21, 2005
Generating a Temperature Compensated Display Drive Voltage
Temperature has an important effect in the variation of
threshold voltage in multiplexed LCD displays. As
temperature rises, the threshold voltage goes down. For
applications where the display temperature varies widely, a
temperature compensated display voltage, VDISP, can be
generated using the ICL7663S. This is shown in Figure 11
for the ICM7233 triplexed LCD display driver.
VOUT2
VOUT1
VSET
GND
V+IN
VTC
VDISP
ICM7233
ICL7663S
GND
DATA BUS
V+
+5V
1.8M
300k
2.7M
LOGIC
SYSTEM,
PROCESSOR,
ETC.
GND
FIGURE 11. GENERATING A MULTIPLEXED LCD DISPLAY DRIVE VOLTAGE
ICL7663S


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