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參數(shù)資料
| 型號： | BUF11705 |
| 英文描述： | 22 - V Supply, 10 + 1 Channel Gamma Correction Buffer |
| 中文描述： | 22 - V供電，10 1通道伽瑪校正緩沖器 |
| 文件頁數(shù)： | 11/17頁 |
| 文件大?。?/td> | 317K |
| 代理商： | BUF11705 |
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SBOS349 DECEMBER 2005
www.ti.com
11
CAPACITIVE LOAD DRIVE
The BUF11705 has been designed to sink/source large
dc currents. Its output stage has been designed to
deliver output current transients with little disturbance
of the output voltage. However, there are times when
very fast current pulses are required. Therefore, in LCD
source driver buffer applications, it is quite normal for
capacitors to be placed at the outputs of the reference
buffers. These capacitors improve the transient load
regulation and will typically have values of 100pF or
more. The BUF11705 gamma buffers were designed to
drive capacitances in excess of 100 pF. The output is
able to swing within 150 mV of the rails on
10 mA of output current, as shown in Figure 24.
OUTPUT VOLTAGE vs OUTPUT CURRENT
O
Output Current
mA
0
10
20
30
40
50
5
15
25
35
45
18.0
17.8
17.6
17.4
17.2
17.0
1.0
0.8
0.6
0.4
0.2
0
Channels 15
Channels 610
V
DD
= 18 V
T
A
= 25 C
Figure 24. Gamma Buffer Drive Capability
APPLICATIONS WITH >10 GAMMA CHANNELS
When a greater number of gamma correction channels
are required, two or more BUF11705 devices can be
used in parallel, as shown in Figure 25. This capability
provides a cost-effective way of creating more refer-
ence voltages over the use of quad-channel op amps or
buffers. The suggested configuration in Figure 25
simplifies layout. The various different channel versions
provide a high degree of flexibility and also minimize
total cost and space.
BUF11705
BUF11705
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
OUT11
OUT12
OUT13
OUT14
OUT15
OUT16
GMA11
12
13
14
15
16
OUT17
17
OUT18
18
OUT19
19
OUT20
GMA20
OUT7
OUT8
OUT9
OUT10
GMA1
2
3
4
5
6
7
8
9
GMA10
Figure 25. Creating > 10 Gamma Voltage
Channels
相關PDF資料 |
PDF描述 |
|---|---|
| BUF11705AIPWPR | 22 - V Supply, 10 + 1 Channel Gamma Correction Buffer |
| BUF12800 | REFERENCE VOLTAGE GENERATOR for LCD GAMMA CORRECTION |
| BUF12800AIPWP | REFERENCE VOLTAGE GENERATOR for LCD GAMMA CORRECTION |
| BUF12800AIPWPR | REFERENCE VOLTAGE GENERATOR for LCD GAMMA CORRECTION |
| BUF16820 | 14-Channel GAMMA VOLTAGE GENERATOR with Programmable VCOM Outputs and OTP Memory |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| BUF11705AIPWPR | 功能描述:LCD Gamma緩沖器 22-V Supply 10+1 Ch Correction RoHS:否 制造商:Maxim Integrated 輸入補償電壓: 轉換速度: 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 安裝風格:SMD/SMT 封裝 / 箱體:TQFN-38 封裝:Tube |
| BUF11705AIPWPRG4 | 功能描述:LCD Gamma緩沖器 22-V Supply 10+1 Ch Correction RoHS:否 制造商:Maxim Integrated 輸入補償電壓: 轉換速度: 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 安裝風格:SMD/SMT 封裝 / 箱體:TQFN-38 封裝:Tube |
| BUF12800 | 制造商:BB 制造商全稱:BB 功能描述:REFERENCE VOLTAGE GENERATOR for LCD GAMMA CORRECTION |
| BUF12800AIPWP | 功能描述:LCD Gamma緩沖器 Ref Vltg Generator for Correction RoHS:否 制造商:Maxim Integrated 輸入補償電壓: 轉換速度: 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 安裝風格:SMD/SMT 封裝 / 箱體:TQFN-38 封裝:Tube |
| BUF12800AIPWPG4 | 功能描述:LCD Gamma緩沖器 Ref Vltg Generator for Correction RoHS:否 制造商:Maxim Integrated 輸入補償電壓: 轉換速度: 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 安裝風格:SMD/SMT 封裝 / 箱體:TQFN-38 封裝:Tube |
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