參數(shù)資料
型號: BUF20820AIDCPR
廠商: Texas Instruments
文件頁數(shù): 14/29頁
文件大?。?/td> 0K
描述: IC 18CH PROG V-REF GEN 38-HTSSOP
標(biāo)準(zhǔn)包裝: 1
應(yīng)用: TFT-LCD 面板:伽瑪緩沖器,VCOM 驅(qū)動(dòng)器
輸出類型: 滿擺幅
電路數(shù): 18
電流 - 電源: 18mA
電流 - 輸出 / 通道: 100mA
電壓 - 電源,單路/雙路(±): 7 V ~ 18 V
安裝類型: 表面貼裝
封裝/外殼: 38-TFSOP (0.173",4.40mm 寬)裸露焊盤
供應(yīng)商設(shè)備封裝: 38-HTSSOP
包裝: 標(biāo)準(zhǔn)包裝
其它名稱: 296-19400-6
BUF20820
SBOS330E DECEMBER 2005 REVISED OCTOBER 2008
www.ti.com
21
TOTAL TI PANEL SOLUTION
In addition to the BUF20820 programmable voltage
reference, TI offers a complete set of ICs for the LCD panel
market, including gamma correction buffers, various
power-supply solutions, and audio power solutions. See
Figure 19 for the total IC solution from TI.
THE BUF20820 IN INDUSTRIAL
APPLICATIONS
The wide supply range, high output current, and very low
cost make the BUF20820 attractive for a range of medium
accuracy industrial applications such as programmable
power supplies, multi-channel data acquisition systems,
data
loggers,
sensor
excitation
and
linearization,
power-supply generation, and others. Each DAC channel
features 1LSB DNL and INL.
Many systems require different levels of biasing and power
supply for various components as well as sensor
excitation, control-loop set-points, voltage outputs, current
outputs, and other functions. The BUF20820, with its 20
total programmable DAC channels, provides great
flexibility to the entire system by allowing the designer to
change all these parameters via software.
Figure 20 provides various ideas on how the BUF20820
can be used in applications. A micro-controller with
two-wire serial interface controls the various DACs of the
BUF20820. The BUF20820 can be used for:
D sensor excitation
D programmable bias/reference voltages
D variable power-supplies
D high-current voltage output
D 4-20mA output
D set-point generators for control loops.
NOTE: At power-up, the output voltages of the BUF20820
DACs are configured to the programmed OTP memory
values, or (VREFH VREFL)/2 if the OTP values have not been
programmed.
2.7 V5 V
3.3 V
nn
26 V
14 V
15 V
TPA3005D2
TPA3008D2
Audio
Speaker
Driver
Logic and
Timing
Controller
HighResolution
TFTLCS Panel
Source Driver
Gamma Correction
BUF20820
V
COM
Ga
te
D
ri
v
e
r
TPS651xx
LCD
Supply
Figure 19. TI LCD Solution
相關(guān)PDF資料
PDF描述
AD5544BCPZ-RL7 IC DAC 16BIT SER QUAD 32-LFCSP
AD7245AQ IC DAC 12BIT W/REF 24-CDIP
AD7225LPZ-REEL IC DAC 8BIT QUAD W/AMP 28-PLCC
AD558KP IC DAC 8BIT 5-15V IN MONO 20PLCC
VI-2WW-IV-F2 CONVERTER MOD DC/DC 5.5V 150W
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
BUF20820AIDCPRE4 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(bǔ)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
BUF20820EVM 功能描述:放大器 IC 開發(fā)工具 BUF20800-BUF20820 Eval Mod RoHS:否 制造商:International Rectifier 產(chǎn)品:Demonstration Boards 類型:Power Amplifiers 工具用于評估:IR4302 工作電源電壓:13 V to 23 V
BUF22821 制造商:TI 制造商全稱:Texas Instruments 功能描述:Programmable Gamma-Voltage Generator and VCOM Calibrator with Integrated Two-Bank Memory
BUF22821AIDCPR 功能描述:LCD Gamma緩沖器 Prgrmbl Gam-Vltg Gen & Vcom Calibrator RoHS:否 制造商:Maxim Integrated 輸入補(bǔ)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
BUF22821EVM 功能描述:放大器 IC 開發(fā)工具 BUF22821EVM Eval Mod RoHS:否 制造商:International Rectifier 產(chǎn)品:Demonstration Boards 類型:Power Amplifiers 工具用于評估:IR4302 工作電源電壓:13 V to 23 V