Overview
Description
The ISL24833 is an 18-channel, 10-bit I2C programmable reference voltage generator for TFT-LCDs with dual bank outputs. It also provides an I2C 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.
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)
Comparison
Applications
Applications
- TFT-LCD Column Driver Reference Generator
- TFT-LCD VCOM Calibrator and Driver
- General-Purpose Reference Voltage Generators
Documentation
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| Type | Title | Date |
| Datasheet - Short-form | PDF 199 KB | |
| Training | PDF 258 KB | |
| Training | PDF 325 KB | |
| Application Note | PDF 564 KB | |
| Datasheet | PDF 917 KB | |
| Product Advisory | PDF 363 KB | |
| Product Change Notice | PDF 135 KB | |
| Product Change Notice | PDF 30 KB | |
| Application Note | PDF 357 KB | |
9 items
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Design & Development
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
| QFN | Tube | 1440 | 3 | Get Samples, | |
| QFN | Reel | 2500 | 3 | Get Samples, |
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