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參數(shù)資料
| 型號(hào)： | LM8342 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Programmable TFT VCOM Calibrator with Non-Volatile |
| 中文描述： | 可編程的TFT VCOM校準(zhǔn)與非揮發(fā)性 |
| 文件頁數(shù)： | 13/16頁 |
| 文件大?。?/td> | 951K |
| 代理商： | LM8342 |
Application Section
(Continued)
TABLE 3. P-bit Truth Table
Operation
Read
Read
P-bit
1
0
Description
Programming Ready
Programming Busy
(don’t turn off the device)
Register Write
EEPROM Write
Write
Write
1
0
The LM8342 can be used in I
2
C compatible systems with
clock speeds of up to 400 kbps (Fast mode). For low speed
applications, an initial resistor value for the pull-up resistors
is 15 k
is suitable. When increasing the speed of the
interface bus, the user should decrease the value of the
pull-up resistors.
Typical Application
The following section discusses two typical applications for
the LM8342. In the first application the LM8342 is used as a
programmable current sink, for example to drive a program-
mable bias generator. In the second application the LM8342
is used to adjust the voltage level of a V
COM
driver.
PROGRAMMABLE CURRENT SINK
As described in the “Principle of Operation of the LM8342”
section the LM8342 basically operates as a programmable
current sink.
Figure 7
shows a general current sink
application.
The output current of the LM8342 can be calculated using
Equation (3)
.
(3)
DRIVING A V
COM
LEVEL
Another typical application, given in
Figure 8
, is using the
LM8342 to adjust the “voltage tap” of a resistive voltage
divider. The V
COM
driver buffers the “voltage tap” in this
application.
20139233
FIGURE 7. Programmable Current Sink
L
www.national.com
13
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM8342SD | Programmable TFT VCOM Calibrator with Non-Volatile |
| LM8342SDX | Programmable TFT VCOM Calibrator with Non-Volatile |
| LM883E | 3-Terminal Adjustable Regulator |
| LM883K | 3-Terminal Adjustable Regulator |
| LM883HVKSTL | 3-Terminal Adjustable Regulator |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM8342SD | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| LM8342SD/NOPB | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| LM8342SDX | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| LM8342SDX/NOPB | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| LM8360 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
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