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BUF12800

更新时间： 2024-01-25 01:51:28
品牌 Logo 应用领域
BB 电压发生器
页数 文件大小 规格书
20页 280K
描述
REFERENCE VOLTAGE GENERATOR for LCD GAMMA CORRECTION

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BUF12800 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active零件包装代码：TSSOP
包装说明：HTSSOP, TSSOP24,.25针数：24
Reach Compliance Code：compliantHTS代码：8542.39.00.01
Factory Lead Time：1 week风险等级：5.03
其他特性：ALSO REQUIRES A 7V TO 18V SUPPLY模拟集成电路 - 其他类型：ANALOG CIRCUIT
JESD-30 代码：R-PDSO-G24JESD-609代码：e4
长度：7.8 mm湿度敏感等级：2
信道数量：12功能数量：1
端子数量：24最高工作温度：85 °C
最低工作温度：-40 °C封装主体材料：PLASTIC/EPOXY
封装代码：HTSSOP封装等效代码：TSSOP24,.25
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：260电源：5,18 V
认证状态：Not Qualified座面最大高度：1 mm
子类别：Other Analog ICs最大供电电压 (Vsup)：5.5 V
最小供电电压 (Vsup)：2.3 V标称供电电压 (Vsup)：5 V
表面贴装：YES技术：CMOS
温度等级：INDUSTRIAL端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式：GULL WING端子节距：0.65 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：4.4 mmBase Number Matches：1

BUF12800 数据手册

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BUF12800  
SBOS315 − DECEMBER 2004  
REFERENCE VOLTAGE GENERATOR  
for LCD GAMMA CORRECTION  
FD EATURES  
AD PPLICATIONS  
12-CHANNEL GAMMA CORRECTION  
10-BIT RESOLUTION  
TFT-LCD REFERENCE DRIVERS  
REFERENCE VOLTAGE GENERATORS  
INDUSTRIAL PROCESS CONTROL  
D
D
D
D
D
D
D
D
D
D
DOUBLE-BUFFERED DAC REGISTERS  
INTEGRATED REFERENCE BUFFERS  
RAIL-TO-RAIL OUTPUT  
LOW SUPPLY CURRENT: 900µA/ch  
SUPPLY VOLTAGE: 7V to 18V  
DIGITAL SUPPLY: 2.7V to 5.5V  
DESCRIPTION  
The BUF12800 is a programmable voltage reference  
generator designed for dynamic gamma correction in  
TFT-LCD panels. It provides 12 programmable outputs,  
each with 10-bit resolution.  
INDUSTRY-STANDARD TWO-WIRE INTERFACE  
− High-Speed Mode: 3.4MHz  
D
D
HIGH ESD RATING:  
− 4kV HBM, 1kV CDM, 200V MM  
TI’s new, small geometry, state-of-the-art, analog CMOS  
process allows the use of one digital-to-analog converter  
(DAC) per channel while still maintaining a very small chip  
size. This topology has the advantage of significantly  
increased programming speed over existing program-  
mable buffers.  
DEMOBOARD AND SOFTWARE AVAILABLE  
V
V
REFH  
3
SD  
S
4
1, 2  
BUF12800  
Programming of each output occurs through an industry-  
standard, two-wire serial interface. Unlike existing  
programmable buffers, the BUF12800 offers a high-  
speed, two-wire interface mode that allows clock speeds  
up to 3.4MHz. The BUF12800 features a double-buffered  
DAC register structure that significantly simplifies imple-  
mentation of dynamic gamma control. This further reduces  
programming time, especially when many channels have  
to be updated simultaneously.  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
Out A  
Out B  
Out C  
Out D  
Out E  
Out F  
Out G  
Out H  
Out I  
Reference pins set the high and low voltages of the output  
range. They are internally buffered, which simplifies  
design. They may be connected to external resistors to  
divide the output range for finer resolution of outputs.  
The BUF12800 is available in a TSSOP-24 PowerPAD  
package. It is specified from −40°C to +85°C.  
Out J  
Out K  
Out L  
BUF12800 RELATED PRODUCTS  
FEATURES  
PRODUCT  
11-ChannelGamma Correction Buffer, Int V  
BUF11702  
BUF07703  
BUF06703  
BUF05703  
BUFxx704  
BUF20800  
COM  
COM  
6-Channel Gamma Correction Buffer, Int V  
6-Channel Gamma Correction Buffer  
4-Channel Gamma Correction Buffer, Int V  
High-Supply Voltage Gamma Buffers  
6
5
SDA  
SCL  
Control IF  
8
COM  
7
10  
REFL  
9
11, 12  
LD  
A0  
20-Channel Programmable Buffer, 10-Bit, V  
COM  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments  
semiconductor products and disclaimers thereto appears at the end of this data sheet.  
PowerPAD is a registered trademark of Texas Instruments. All other trademarks are the property of their respective owners.  
ꢀꢁ ꢂ ꢃꢄ ꢅ ꢆꢇ ꢂꢈ ꢃ ꢉꢆꢉ ꢊꢋ ꢌꢍ ꢎ ꢏꢐ ꢑꢊꢍꢋ ꢊꢒ ꢓꢔ ꢎ ꢎ ꢕꢋꢑ ꢐꢒ ꢍꢌ ꢖꢔꢗ ꢘꢊꢓ ꢐꢑꢊ ꢍꢋ ꢙꢐ ꢑꢕꢚ ꢀꢎ ꢍꢙꢔ ꢓꢑꢒ  
ꢓ ꢍꢋ ꢌꢍꢎ ꢏ ꢑꢍ ꢒ ꢖꢕ ꢓ ꢊ ꢌꢊ ꢓ ꢐ ꢑꢊ ꢍꢋꢒ ꢖ ꢕꢎ ꢑꢛꢕ ꢑꢕ ꢎ ꢏꢒ ꢍꢌ ꢆꢕꢜ ꢐꢒ ꢇꢋꢒ ꢑꢎ ꢔꢏ ꢕꢋꢑ ꢒ ꢒꢑ ꢐꢋꢙ ꢐꢎ ꢙ ꢝ ꢐꢎ ꢎ ꢐ ꢋꢑꢞꢚ  
ꢀꢎ ꢍ ꢙꢔꢓ ꢑ ꢊꢍ ꢋ ꢖꢎ ꢍ ꢓ ꢕ ꢒ ꢒ ꢊꢋ ꢟ ꢙꢍ ꢕ ꢒ ꢋꢍꢑ ꢋꢕ ꢓꢕ ꢒꢒ ꢐꢎ ꢊꢘ ꢞ ꢊꢋꢓ ꢘꢔꢙ ꢕ ꢑꢕ ꢒꢑꢊ ꢋꢟ ꢍꢌ ꢐꢘ ꢘ ꢖꢐ ꢎ ꢐꢏ ꢕꢑꢕ ꢎ ꢒꢚ  
Copyright 2004, Texas Instruments Incorporated  
www.ti.com  
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