- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄358818 > LM2479NA (NATIONAL SEMICONDUCTOR CORP) 120V Triple Bias Clamp PDF資料下載
參數(shù)資料
| 型號： | LM2479NA |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 模擬信號調(diào)理 |
| 英文描述： | 120V Triple Bias Clamp |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PDIP8 |
| 封裝： | PLASTIC, DIP-8 |
| 文件頁數(shù)： | 3/4頁 |
| 文件大小： | 78K |
| 代理商： | LM2479NA |
Typical Performance Characteristics
(V
CC
= +120V), Test Circuit - Figure 3 unless otherwise specified.
THEORY OF OPERATION
The circuit diagram of the LM2479 is shown in Figure 1. The
DC clamp circuit amplifies the input signal by -18 and the
gain is set by the resistor ratio of 18R and R. The output
requires pull-up resistor to 120V. Figure 2 shows the test
circuit used for evaluation of the LM2479 Clamp Amplifier. A
high impedance voltmeter (100M
) is used for DC measure-
ments at the output. The DC transfer function is shown in
Figure 4.
APPLICATION HINTS
Power Supply Bypass
The LM2479 should have proper power supply bypassing for
optimum performance. A 0.1μF capacitor should be con-
nected from the supply pin, V
, to ground, as close to the
supply and ground pins as is practical. Additionally, a 1.0μF
electrolycelectrolytictic capacitor should be connected from
the supply pin to ground. The electrolytic capacitor should
also be placed reasonably close to the LM2479’s supply and
ground pins.
Application Circuit
The application circuit shown in Figure 5 is designed to help
clamp the voltage at the output of the driver to the desired
level. Capacitor C
stabilizes the entire node at the anode of
the clamp diode, D
, by creating a low impedance at high
frequencies. Figure 5 also shows the standard application
circuit topology when used with an LM246X CRT driver. It
shows all the components necessary to optimize perfor-
mance as well as to protect against damage from a CRT arc
event. No additional components are required to protect the
LM2479 from arc damage.
Demonstration Hardware
National Semiconductor has designed a demonstration
neckboard for the LM126X, LM246X, and the LM2479
chipset. To obtain demonstration boards contact the National
Semiconductor Sales Office in your region.
DS101391-4
FIGURE 4. V
out
vs V
in
DS101391-7
FIGURE 5. One Channel of the LM2479 and LM246X
Application Circuit
L
www.national.com
3
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM2479 | 120V Triple Bias Clamp |
| LM2485 | 220V Triple Bias Clamp with G1 Blank Amplifier |
| LM2485NA | RES 9.1 OHM 1/2W 5% CARBON FILM |
| LM24P20 | Medium Size Graphic Type LCD Module |
| LM2501 | Mobile Pixel Link (MPL) Camera Interface Serializer and Deserializer |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM248 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:QUAD BIPOLAR OPERATIONAL AMPLIFIERS |
| LM2480 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:80V Triple Bias Clamp |
| LM2480NA | 制造商:OC White Company 功能描述:CRT DRVR 85V 8-Pin PDIP Rail |
| LM2480NA/NOPB | 功能描述:IC TRIPLE BIAS CLAMP 80V 8-DIP RoHS:是 類別:集成電路 (IC) >> PMIC - 顯示器驅(qū)動器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 顯示器類型:真空熒光 (VF) 配置:5 x 7（矩陣） 接口:串行 數(shù)字或字符:- 電流 - 電源:3.5mA 電源電壓:2.7 V ~ 3.6 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:16-SSOP（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:16-QSOP 包裝:帶卷 (TR) |
| LM2481 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:145V Triple Bias Clamp |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。