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BUF20800

現行

具兩個可編程 VCOM 通道的 18 通道 Gamma 電壓產生器

立即訂購
產品規格表

BUF20800

現行
產品規格表 立即訂購

產品詳細資料

Display type LCD unipolar IC integration Gamma buffer, VCOM Vin (min) (V) 7 Vin (max) (V) 18 Applications 13 to 21 inches, 21 inches and above, 7 inches or less, 7 to 13 inches 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 Operating temperature range (°C) -40 to 95
Display type LCD unipolar IC integration Gamma buffer, VCOM Vin (min) (V) 7 Vin (max) (V) 18 Applications 13 to 21 inches, 21 inches and above, 7 inches or less, 7 to 13 inches 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 Operating temperature range (°C) -40 to 95
HTSSOP (DCP) 38 62.08 mm² 9.7 x 6.4
  • 18-CHANNEL GAMMA CORRECTION
  • 2-CHANNEL PROGRAMMABLE VCOM:
    100mA IOUT
  • 10-BIT RESOLUTION
  • RAIL-TO-RAIL OUTPUT
  • LOW SUPPLY CURRENT: 900µA/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.
  • 18-CHANNEL GAMMA CORRECTION
  • 2-CHANNEL PROGRAMMABLE VCOM:
    100mA IOUT
  • 10-BIT RESOLUTION
  • RAIL-TO-RAIL OUTPUT
  • LOW SUPPLY CURRENT: 900µA/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.

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 VCOM 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.

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 VCOM 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.
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技術文件

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類型 標題 日期
* Data sheet 18-Channel, Gamma Voltage Generator with Two Programmable Vcom Channels datasheet (Rev. E) 2007年 12月 5日
Application note Driving Capacitive Loads with Gamma Buffers 2012年 11月 20日
EVM User's guide BUF20800/BUF20820EVM User Guide 2011年 4月 8日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

支援軟體

SBOC395 — BUF20800-20820 EVM Source Code

支援產品和硬體

支援產品和硬體

產品
LCD 及 OLED 顯示器電源和驅動器
BUF20800 — 具兩個可編程 VCOM 通道的 18 通道 Gamma 電壓產生器
下載
支援軟體

SBOC396 — BUF20800/BUF20820 EVM Software

支援產品和硬體

支援產品和硬體

產品
LCD 及 OLED 顯示器電源和驅動器
BUF20800 — 具兩個可編程 VCOM 通道的 18 通道 Gamma 電壓產生器
下載
模擬型號

Gamma Buffer I2C IBIS Model

SBOM409.ZIP (39 KB) - IBIS Model
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模擬型號

INA271 Generic Spice Model Listing (Rev. A)

SBOC286A.ZIP (37 KB) - Spice Model
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模擬型號

INA271 TINA-TI Reference Design (Rev. B)

SBOC285B.TSC (176 KB) - TINA-TI Reference Design
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模擬型號

INA271 TINA-TI Spice Model (Rev. A)

SBOM313A.ZIP (6 KB) - TINA-TI Spice Model
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模擬工具

PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
要求
封裝 針腳 CAD 符號、佔位空間與 3D 模型
HTSSOP (DCP) 38 Ultra Librarian
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