參數(shù)資料
型號(hào)： BUF01900AIDRCR
廠商： TEXAS INSTRUMENTS INC
元件分類： 模擬信號(hào)調(diào)理
英文描述： SPECIALTY ANALOG CIRCUIT, PDSO10
封裝： 3 X 3 MM, 0.90 MM HEIGHT, GREEN, PLASTIC, SON-10
文件頁(yè)數(shù)： 24/26頁(yè)
文件大小： 662K
代理商： BUF01900AIDRCR
BUF01900
BUF01901
SBOS337A OCTOBER 2006 REVISED OCTOBER 2006
www.ti.com
7
APPLICATIONS INFORMATION
OVERVIEW
The BUF0190x family of products consists of a 10-bit digi-
tal-to-analog converter (DAC) that is programmed through
an industry-standard two-wire interface. It contains on-
chip nonvolatile memory that stores a specific DAC value
that is read at power-up. The BUF0190x family consists of
two devices: The BUF01900 contains a voltage buffer that
is capable of driving high-current; the BUF01901 is a low-
er-cost version without the buffer. The BUF0190x is espe-
cially well-suited for VCOM calibration in LCD panels; how-
ever, it can also be used in many other applications.
Figure 14 shows the BUF01900 in a typical configuration.
BUF01900: ON-CHIP BUFFER
Unlike many programmable VCOM calibrators on the mar-
ket, the BUF01900 offers an integrated VCOM buffer with
high current output drive capability. The output is capable
of delivering peak currents over 100mA to within 4V from
the positive supply and to within 2V from the negative sup-
ply. Using this option is very cost-effective and convenient
in systems that do not use multi-channel gamma buffers
with
integrated
VCOM drive. Figure 15 shows the
BUF01900 in a typical configuration.
(1)
Timing
Controller
0.1
F
0.1
F
V
S
V
SD
V
COM
(2)
V
S
10
F
10k
10k
+
1
2
3
4
8
7
6
5
SDA
SCL
A
0
V
SD
V
S
V
COM
V
BIAS
GND
(1) Optional may be needed for stability.
(2) Optional see application text for component selection.
BUF01900
NOTES:
Figure 14. Typical Application Diagram
BIAS
250k
Analog
7V to 18V
R
1
R
2
Digital
2V to 5.5V
SDA
Input Control Logic
SCL
A0
10Bit
DAC
4x OTP
ROM
Switch
Control
Voltage
Regulator
P
rogr
am
C
o
m
and
BUF01900
V
COM
Buffer
V
COM
Panel
Figure 15. BUF01900 Typical Configuration
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
BUF01900AIDRCRG4 功能描述:LCD Gamma緩沖器 Ref Vltg Gen for VCOM Adj 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
BUF01900AIDRCT 功能描述:LCD Gamma緩沖器 Ref Vltg Gen for VCOM Adj 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
BUF01900AIDRCTG4 功能描述:LCD Gamma緩沖器 Ref Vltg Gen for VCOM Adj 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
BUF01900AIPW 功能描述:LCD Gamma緩沖器 Ref Vltg Gen for VCOM Adj 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
BUF01900AIPWG4 功能描述:LCD Gamma緩沖器 Ref Vltg Gen for VCOM Adj 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
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