BUF08821_TI 具有集成双列存储器的 8 通道伽玛电压发生器和 Vcom 校准器

BUF08821的基本参数

制造厂商：TI
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：具有集成双列存储器的 8 通道伽玛电压发生器和 Vcom 校准器
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BUF08821的产品详情：

The BUF08821 offers eight programmable gamma channels plus one programmable V_COM channel.

The final gamma and V_COM values can be stored in the on-chip, nonvolatile memory. To allow for programming errors or liquid crystal display (LCD) panel rework, the BUF08821 supports up to 16 write operations to the on-chip memory.

The BUF08821 has two separate memory banks, allowing simultaneous storage of two different gamma curves to facilitate switching between gamma curves.

All gamma and V_COM 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 BUF08821 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 BUF08821 is offered in a HTSSOP-20 PowerPAD package. It is specified from –40°C to +85°C.

BUF08821的优势和特性：

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

BUF08821的参数（英文）：

Display type
LCD unipolar
IC integration
Gamma buffer, VCOM
Vin (Min) (V)
9
Vin (Max) (V)
20
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

BUF08821具体的完整产品型号参数及价格（美元）：

BUF08821的完整型号有：BUF08821AIPWPR、BUF08821BIPWPR，以下是这些产品的关键参数及官网采购报价：

BUF08821AIPWPR，工作温度：-40 to 95，封装：HTSSOP (PWP)-20，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BUF08821AIPWPR的批量USD价格：1.672（1000+）

BUF08821BIPWPR，工作温度：-40 to 95，封装：HTSSOP (PWP)-20，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BUF08821BIPWPR的批量USD价格：1.672（1000+）

BUF08821的评估套件：

BUF08821EVM-USB — BUF08821EVM-USB

The BUF08821EVM is a platform for evaluating the performance of the BUF08821 gamma-voltage generator under various signal, reference and supply conditions. This device offers 8 programmable gamma channels, 1 programmable Vcom channels, and integrated 2 bank memory.

BUF08821EVM Software

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BUF08821的电路图解：

BUF08821的评估套件：