- 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：具有双存储器组和 EEPROM 访问能力的 12 通道伽马电压发生器
- 点击这里打开及下载BUF12840的技术文档资料
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The BUF12840 offers 12 programmable gamma channels with external electrically erasable programmable read-only memory (EEPROM) read capabilities.
The BUF12840 has two separate memory banks that allow simultaneous storage of two different gamma curves to facilitate switching between gamma curves.
All gamma channels offer a rail-to-rail output that typically swings to within 200mV of either supply rail with a 5mA load. All channels are programmed using a two-wire interface that supports standard operations up to 400kHz and high-speed data transfers up to 3.4MHz.
The BUF12840 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 BUF12840 is offered in a QFN-24 package, and is specified from –40°C to +95°C.
- 10-BIT RESOLUTION
- 12-CHANNEL P-GAMMA
- READS FROM EXTERNAL EEPROM
- TWO INDEPENDENT PIN-SELECTABLE MEMORY BANKS
- RAIL-TO-RAIL OUTPUT:
- 300mV Min Swing-to-Rail (10mA)
- 200mV Min Swing-to-Rail (5mA)
- LOW SUPPLY CURRENT
- SUPPLY VOLTAGE: 9V to 20V
- DIGITAL SUPPLY: 2V to 5.5V
- TWO-WIRE INTERFACE: Supports 400kHz and 3.4MHz Operation
- APPLICATIONS
- TFT-LCD REFERENCE DRIVERS
All other trademarks are the property of their respective owners
- Display type
- LCD unipolar
- IC integration
- Gamma buffer
- 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
- Rating
- Catalog
BUF12840的完整型号有：BUF12840AIRGER、BUF12840AIRGET，以下是这些产品的关键参数及官网采购报价：
BUF12840AIRGER，工作温度：-40 to 95，封装：VQFN (RGE)-24，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-3-260C-168 HR，引脚镀层/焊球材料：NIPDAU，TI官网BUF12840AIRGER的批量USD价格：1.848（1000+）
BUF12840AIRGET，工作温度：-40 to 95，封装：VQFN (RGE)-24，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-3-260C-168 HR，引脚镀层/焊球材料：NIPDAU，TI官网BUF12840AIRGET的批量USD价格：2.218（1000+）
BUF12840EVM — BUF12840 评估模块
BUF12840EVM 是用于在各种信号、基准和电源条件下评估 BUF08630 性能的一个平台。
BUF12840EVM User Software
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