BUF16821

現行

具整合式 2 組記憶體的 16 通道 Gamma 電壓產生器和 Vcom 校準器

產品詳細資料

Display type LCD unipolar IC integration Gamma buffer, VCOM Vin (min) (V) 9 Vin (max) (V) 20 Applications 13 to 21 inches, 21 inches and above, 7 inches or less, 7 to 13 inches Source driver voltage (min) (V) 9 Source driver voltage (max) (V) 20 Level shifter/scan driver (Ch) 0 Features Gamma buffer, I2C interface, VCOM or op amp Rating Catalog Operating temperature range (°C) -40 to 85
Display type LCD unipolar IC integration Gamma buffer, VCOM Vin (min) (V) 9 Vin (max) (V) 20 Applications 13 to 21 inches, 21 inches and above, 7 inches or less, 7 to 13 inches Source driver voltage (min) (V) 9 Source driver voltage (max) (V) 20 Level shifter/scan driver (Ch) 0 Features Gamma buffer, I2C interface, VCOM or op amp Rating Catalog Operating temperature range (°C) -40 to 85
HTSSOP (PWP) 28 62.08 mm² 9.7 x 6.4
  • 10-BIT RESOLUTION
  • 16-CHANNEL P-GAMMA
  • 2-CHANNEL P-VCOM
  • 16x REWRITABLE NONVOLATILE MEMORY
  • TWO INDEPENDENT PIN-SELECTABLE MEMORY BANKS
  • RAIL-TO-RAIL OUTPUT
    • 300mV Min Swing-to-Rail (10mA)
    • > 300mA Max IOUT
  • LOW SUPPLY CURRENT
  • SUPPLY VOLTAGE: 9V to 20V
  • DIGITAL SUPPLY: 2V to 5.5V
  • I2C™ INTERFACE: Supports 400kHz and 3.4MHz
  • APPLICATIONS
    • TFT-LCD REFERENCE DRIVERS

PowerPAD is a trademark of Texas Instruments.
I2C is a trademark of NXP Semiconductors.
All other trademarks are the property of their respective owners.

  • 10-BIT RESOLUTION
  • 16-CHANNEL P-GAMMA
  • 2-CHANNEL P-VCOM
  • 16x REWRITABLE NONVOLATILE MEMORY
  • TWO INDEPENDENT PIN-SELECTABLE MEMORY BANKS
  • RAIL-TO-RAIL OUTPUT
    • 300mV Min Swing-to-Rail (10mA)
    • > 300mA Max IOUT
  • LOW SUPPLY CURRENT
  • SUPPLY VOLTAGE: 9V to 20V
  • DIGITAL SUPPLY: 2V to 5.5V
  • I2C™ INTERFACE: Supports 400kHz and 3.4MHz
  • APPLICATIONS
    • TFT-LCD REFERENCE DRIVERS

PowerPAD is a trademark of Texas Instruments.
I2C is a trademark of NXP Semiconductors.
All other trademarks are the property of their respective owners.

The BUF16821 offers 16 programmable gamma channels and two programmable VCOM channels.

The final gamma and VCOM values can be stored in the on-chip, nonvolatile memory. To allow for programming errors or liquid crystal display (LCD) panel rework, the BUF16821 supports up to 16 write operations to the on-chip memory.

The BUF16821 has two separate memory banks, allowing simultaneous storage of two different gamma curves to facilitate switching between gamma curves.

All gamma and VCOM channels offer a rail-to-rail output that typically swings to within 150mV of either supply rail with a 10mA load. All channels are programmed using an I2C interface that supports standard operations up to 400kHz and high-speed data transfers up to 3.4MHz.

The BUF16821 is manufactured using Texas Instruments' proprietary, state-of-the-art, high-voltage CMOS process. This process offers very dense logic and high supply voltage operation of up to 20V. The BUF16821 is offered in a HTSSOP-28 PowerPAD™ package, and is specified from -40°C to +85°C.

The BUF16821 offers 16 programmable gamma channels and two programmable VCOM channels.

The final gamma and VCOM values can be stored in the on-chip, nonvolatile memory. To allow for programming errors or liquid crystal display (LCD) panel rework, the BUF16821 supports up to 16 write operations to the on-chip memory.

The BUF16821 has two separate memory banks, allowing simultaneous storage of two different gamma curves to facilitate switching between gamma curves.

All gamma and VCOM channels offer a rail-to-rail output that typically swings to within 150mV of either supply rail with a 10mA load. All channels are programmed using an I2C interface that supports standard operations up to 400kHz and high-speed data transfers up to 3.4MHz.

The BUF16821 is manufactured using Texas Instruments' proprietary, state-of-the-art, high-voltage CMOS process. This process offers very dense logic and high supply voltage operation of up to 20V. The BUF16821 is offered in a HTSSOP-28 PowerPAD™ package, and 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 Programmable Gamma-Volt Generator & Vcom Calibrator w/Integrated 2-Bank Memory datasheet (Rev. C) 2011年 7月 12日
EVM User's guide BUF16821EVM-USB User Guide (Rev. A) 2016年 5月 31日
Application note Driving Capacitive Loads with Gamma Buffers 2012年 11月 20日
EVM User's guide BUF16821EVM Evaluation Board and Software Tutorial 2008年 2月 27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)。

開發板

BUF16821EVM-USB — BUF16821 評估模組 USB

The BUF16821EVM-USB is a platform for evaluating the performance of the BUF16821 under various signal, reference, and supply conditions.

使用指南: PDF
TI.com 無法提供
開發模組 (EVM) 的 GUI

SBOC255 BUF16821 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
BUF16821 具整合式 2 組記憶體的 16 通道 Gamma 電壓產生器和 Vcom 校準器
支援軟體

SBOC405 BUF16821EVM-USB 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
BUF16821 具整合式 2 組記憶體的 16 通道 Gamma 電壓產生器和 Vcom 校準器 BUF16821-Q1 具有整合式 2 組記憶體的汽車、16 通道 Gamma 電壓產生器和 Vcom 校準器
硬體開發
開發板
BUF16821EVM-USB BUF16821 評估模組 USB
支援軟體

SBOC406 BUF16821EVM-USB 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
BUF16821 具整合式 2 組記憶體的 16 通道 Gamma 電壓產生器和 Vcom 校準器 BUF16821-Q1 具有整合式 2 組記憶體的汽車、16 通道 Gamma 電壓產生器和 Vcom 校準器
硬體開發
開發板
BUF16821EVM-USB BUF16821 評估模組 USB
模擬型號

BUF16821 DAC OUTPUT Unencrypted PSpice Model Package

SBOMB83.ZIP (43 KB) - PSpice Model
模擬型號

Gamma Buffer I2C IBIS Model

SBOM409.ZIP (39 KB) - IBIS Model
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 (...)
封裝 針腳 CAD 符號、佔位空間與 3D 模型
HTSSOP (PWP) 28 Ultra Librarian

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  • 認證摘要
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  • 晶圓廠位置
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