ISL24833

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18-Channel Programmable I2 C TFT-LCD Reference Voltage Generator

Product Status: Mass Production

OVERVIEW

The ISL24833 is an 18-channel, 10-bit I2 C programmable reference voltage generator for TFT-LCDs with dual bank outputs. It also provides an I2 C programmable, 1-channel, 8-bit VCOM calibrator with VCOM amplifier and internal EEPROM.

The two output banks are capable of switching quickly (<1µs) enabling rapid switching between two gamma curves (or operational modes) in TFT-LCD applications. The ISL24833 also integrates two banks of EEPROM that can store all reference voltage data. The EEPROM is capable of >300 write cycles.

Combining gamma and VCOM reference voltage generators with low power operation and EEPROM, the ISL24833 provides a complete reference voltage solution ideal for large area TFT-LCD display applications.

The ISL24833 is available in a 32 Ld 5mmx6mm QFN thermally enhanced package. It is specified for operation across the -40°C to +85°C temperature range.

KEY FEATURES

  • 18-channel I2C programmable 10-bit DACs
  • Integrated I2C programmable 8-bit VCOM calibrator
  • One VCOM op amp
  • Two banks of EEPROM storage (rewriteable >300 times)
  • Fast output bank switching: <1µs typical
  • Analog supply: 12V to 18V at 15mA (unloaded)
  • Digital supply: 2.5V to 3.3V at 1.3mA (unloaded)
  • I2C serial interface
  • Pb-free (RoHS compliant)

BLOCK DIAGRAM

 Block Diagram

PARAMETRICS

Parameters
ISL24833
Basic Information
生产状态
Mass Production
器件/通道数量
18
供电电压Vs范围 (V)
10.8 to 19
总线/输出接口
I2C
总线接口速度
0.4 MHz
轨到轨
Out
IS
15 mA
资质级别
Standard
温度范围
-40 to +85

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