BUF20800_TI 具有两个可编程 VCOM 通道的 18 通道伽马电压发生器

BUF20800的基本参数

制造厂商：TI（德州仪器，Texas Instruments）
产品类别：电源管理
技术类目：LCD 和 OLED 显示电源和驱动器
功能描述：具有两个可编程 VCOM 通道的 18 通道伽马电压发生器
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BUF20800的产品详情：

The BUF20800 is a programmable voltage reference generator designed for gamma correction in TFT-LCD panels. It provides 18 programmable outputs for gamma correction and two channels for V_COM adjustment, each with 10-bit resolution.

This programmability replaces the traditional, timeconsuming process of changing resistor values to optimize the various gamma voltages and allows designers to determine the correct gamma voltages for a panel very quickly. Required changes can also be easily implemented without hardware changes.

The BUF20800 uses TI’s latest, small-geometry analog CMOS process, which makes it a very competitive choice for full production, not just evaluation.

Programming of each output occurs through an industry-standard, two-wire serial interface. Unlike existing programmable buffers, the BUF20800 offers a high-speed mode that allows clock speeds up to 3.4MHz.

For lower channel count, please contact your local sales or marketing representative.

The BUF20800 is available in an HTSSOP-38 PowerPAD™ package. It is specified from –40°C to +85°C.

BUF20800的优势和特性：

18-CHANNEL GAMMA CORRECTION
2-CHANNEL PROGRAMMABLE VCOM: 100mA IOUT
10-BIT RESOLUTION
RAIL-TO-RAIL OUTPUT
LOW SUPPLY CURRENT: 900A/ch
SUPPLY VOLTAGE: 7V to 18V
DIGITAL SUPPLY: 2.0V to 5.5V
INDUSTRY-STANDARD, TWO-WIRE INTERFACE: 3.4MHz High-Speed Mode
HIGH ESD RATING: 4kV HBM, 1kV CDM, 200V MM
DEMO BOARD AND SOFTWARE AVAILABLE
APPLICATIONS
- REPLACES RESISTOR-BASED GAMMA SOLUTIONS
- TFT-LCD REFERENCE DRIVERS
- DYNAMIC GAMMA CONTROL

PowerPAD is a registered trademark of Texas Instruments. All other trademarks are the property of their respective owners.

BUF20800的参数（英文）：

Display type
LCD unipolar
IC integration
Gamma buffer, VCOM
Vin (Min) (V)
7
Vin (Max) (V)
18
Source driver voltage (Min) (V)
7
Source driver voltage (Max) (V)
18
Level shifter/scan driver (ch)
0
Features
Gamma buffer, I2C interface, VCOM or op amp
Rating
Catalog

BUF20800具体的完整产品型号参数及价格（美元）：

BUF20800的完整型号有：BUF20800AIDCPR，以下是这些产品的关键参数及官网采购报价：

BUF20800AIDCPR，工作温度：-40 to 95，封装：HTSSOP (DCP)-38，包装数量MPQ：2000个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网BUF20800AIDCPR的批量USD价格：2.596（1000+）

BUF20800的评估套件：

BUF20800-20820 EVM Source Code

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BUF20800的电路图解：

BUF20800的评估套件：