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參數(shù)資料
| 型號： | BUF20800AIDCPR |
| 英文描述： | 18-Channel GAMMA VOLTAGE GENERATOR with Two Programmable VCOM Channels |
| 中文描述： | 18通道伽瑪雙通道可編程的VCOM電壓發(fā)生器 |
| 文件頁數(shù)： | 1/27頁 |
| 文件大小： | 765K |
| 代理商： | BUF20800AIDCPR |
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FEATURES
18-CHANNEL GAMMA CORRECTION
2-CHANNEL PROGRAMMABLE V
COM
:
100mA I
OUT
10-BIT RESOLUTION
RAIL-TO-RAIL OUTPUT
LOW SUPPLY CURRENT: 900
μ
A/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
REFH OUT
REFH
Digital
(2.0V to 5.5V)
Analog
(7V to 18V)
REFL
AO
LD
SCL
SDA
REFL OUT
OUT 18
OUT 17
D
Control IF
OUT 1
OUT 2
…
…
18 Output Channels plus
Two V
COM
Channels
BUF20800
D
V
COM OUT1
V
COM OUT2
APPLICATIONS
REPLACES RESISTOR-BASED GAMMA
SOLUTIONS
TFT-LCD REFERENCE DRIVERS
DYNAMIC GAMMA CONTROL
DESCRIPTION
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 V
COM
adjustment, each
with 10-bit resolution.
This programmability replaces the traditional, time-
consuming 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.
BUF20800 RELATED PRODUCTS
FEATURES
18-Channel Programmable, Two V
COM
+ OTP Memory
12-Channel Programmable Buffer, 10-Bit
Programmable V
COM
11-, 6-, 4-Channel Gamma Correction Buffer, 18V Supply
High-Speed V
COM
, 1 and 2 Channels
Complete LCD DC/DC Solution
PRODUCT
BUF20820
BUF12800
BUF01900
BUFxx704
SN10501
TPS65100
BUF20800
SBOS329D JUNE 2005 REVISED OCTOBER 2006
18-Channel GAMMA VOLTAGE GENERATOR
with Two Programmable V
COM
Channels
!
!
www.ti.com
Copyright
20052006, Texas Instruments Incorporated
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.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| BUF20820 | 18-Channel GAMMA VOLTAGE GENERATOR with Two Programmable VCOM Channels |
| BUF20820AIDCPR | 18-Channel GAMMA VOLTAGE GENERATOR with Two Programmable VCOM Channels |
| BUF20820AIDCPRE4 | 18-Channel GAMMA VOLTAGE GENERATOR with Two Programmable VCOM Channels |
| BUF298AF | TRANSISTOR | BJT POWER MODULE | INDEPENDENT | 450V V(BR)CEO | 50A I(C) |
| BUF298AV | TRANSISTOR | BJT POWER MODULE | INDEPENDENT | 450V V(BR)CEO | 50A I(C) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| BUF20800AIDCPRE4 | 功能描述:LCD Gamma緩沖器 18-Ch Vltg Generator w/2 Prog VCOM Chs RoHS:否 制造商:Maxim Integrated 輸入補償電壓: 轉(zhuǎn)換速度: 電源電壓-最大:20 V 電源電壓-最小:9 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-38 封裝:Tube |
| BUF20800ATDCPRQ1 | 功能描述:LCD Gamma緩沖器 AUTO CAT 18CH GAMMA VLTG GEN RoHS:否 制造商:Maxim Integrated 輸入補償電壓: 轉(zhuǎn)換速度: 電源電壓-最大:20 V 電源電壓-最小:9 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-38 封裝:Tube |
| BUF20800-Q1 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:18-CHANNEL GAMMA VOLTAGE GENERATOR WITH TWO PROGRAMMABLE VCOM CHANNELS |
| BUF20820 | 制造商:BB 制造商全稱:BB 功能描述:18-Channel GAMMA VOLTAGE GENERATOR with Two Programmable VCOM Channels |
| BUF20820AIDCPR | 功能描述:LCD Gamma緩沖器 18-Ch Vltg Generator w/2 Prog VCOM Chs RoHS:否 制造商:Maxim Integrated 輸入補償電壓: 轉(zhuǎn)換速度: 電源電壓-最大:20 V 電源電壓-最小:9 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-38 封裝:Tube |
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