ICL7663S 查看數據表（PDF） - Intersil

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ICL7663S

CMOS Programmable Micropower Positive Voltage Regulator

Intersil 

ICL7663S

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.

+5V

LOGIC

SYSTEM,

PROCESSOR,

ETC.

GND

V+IN

VOUT1

VOUT2

ICL7663S

VSET

VTC

1.8MΩ

300kΩ

GND

2.7MΩ

V+

ICM7233

VDISP

GND

DATA BUS

FIGURE 11. GENERATING A MULTIPLEXED LCD DISPLAY DRIVE VOLTAGE

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