德赢Vwin官网
App
发帖 
提问 
发资料
发视频资料介绍
LM7812
Series Voltage Regulators
General Description
The LM7812series of three terminal regulators is available
with several fixed output voltages making them useful in a
wide range of applications. One of these is local on card
regulation, eliminating the distribution problems associated
with single point regulation. The voltages available allow
these regulators to be used in logic systems, instrumentation,
HiFi, and other solid state electronic equipment. Although
designed primarily as fixed voltage regulators these
devices can be used with external components to obtain adjustable
voltages and currents.
The LM78XX series is available in an aluminum TO-3 package
which will allow over 1.0A load current if adequate heat
sinking is provided. Current limiting is included to limit the
peak output current to a safe value. Safe area protection for
the output transistor is provided to limit internal power dissipation.
If internal power dissipation becomes too high for the
heat sinking provided, the thermal shutdown circuit takes
over preventing the IC from overheating.
Considerable effort was expanded to make the LM78XX series
of regulators easy to use and minimize the number of
external components. It is not necessary to bypass the output,
although this does improve transient response. Input bypassing
is needed only if the regulator is located far from the
filter capacitor of the power supply.
For output voltage other than 5V, 12V and 15V the LM117
series provides an output voltage range from 1.2V to 57V.
Series Voltage Regulators
General Description
The LM7812series of three terminal regulators is available
with several fixed output voltages making them useful in a
wide range of applications. One of these is local on card
regulation, eliminating the distribution problems associated
with single point regulation. The voltages available allow
these regulators to be used in logic systems, instrumentation,
HiFi, and other solid state electronic equipment. Although
designed primarily as fixed voltage regulators these
devices can be used with external components to obtain adjustable
voltages and currents.
The LM78XX series is available in an aluminum TO-3 package
which will allow over 1.0A load current if adequate heat
sinking is provided. Current limiting is included to limit the
peak output current to a safe value. Safe area protection for
the output transistor is provided to limit internal power dissipation.
If internal power dissipation becomes too high for the
heat sinking provided, the thermal shutdown circuit takes
over preventing the IC from overheating.
Considerable effort was expanded to make the LM78XX series
of regulators easy to use and minimize the number of
external components. It is not necessary to bypass the output,
although this does improve transient response. Input bypassing
is needed only if the regulator is located far from the
filter capacitor of the power supply.
For output voltage other than 5V, 12V and 15V the LM117
series provides an output voltage range from 1.2V to 57V.
下载该资料的人也在下载
下载该资料的人还在阅读
更多 >
- dcreg12v3a mj2955 lm7812开源分享
- 长虹LM32机芯液晶彩电电路图.pdf 17次下载
- 基于LM2733升压变换器电路设计 5次下载
- lm358芯片元件库资料下载.pdf 109次下载
- DEM-ADS7812: Demonstration Fix
- LM837,pdf datasheet (Low Noise
- LM系列器件芯片资料集
- LM4510,pdf,datasheet (Synchron
- 三端稳压器7812资料
- lm7812中文资料
- ad7812/ad7811 pdf datasheet
- 7812 pdf datasheet
- LM64194F.pdf
- lm32019t pdf
- lm339 pdf datasheet
- lm358电压上限和下限比较 LM358和LM358P区别是什么 8635次阅读
- LM339N与LM339有什么区别 1.9w次阅读
- MT7812芯片引脚定义及应用电路 1.3w次阅读
- LM7812制作一个12V电源 1.2w次阅读
- 7812稳压块能对多大范围内的电压稳压?7812参数特性及稳压电源电路 3.5w次阅读
- lm7812中文资料汇总（lm7812引脚图功能_内部结构参数及应用电路） 17w次阅读
- lm317中文资料详细（lm317引脚图及功能_工作原理及应用电路） 36.8w次阅读
- lm2596有必要买原装的吗 8139次阅读
- lm2596引脚分配图（lm2596内部框图和电气参数及应用电路） 8.2w次阅读
- l7812cv输出电流是多少 2.2w次阅读
- lm7812稳压电路图_lm7812扩流稳压电路图 5.9w次阅读
- l7812怎么起到稳压作用_l7812工作原理及引脚图 7.6w次阅读
- l7812cv好坏的判断方法介绍 3.8w次阅读
- lm393与lm358的特点及区别 8.4w次阅读
- LM393应用电路及LM393相关的应用资料 2.9w次阅读
上传资料赚积分下载排行
本周
- 1TC358743XBG评估板参考手册
- 1.36 MB | 330次下载 | 免费
- 2开关电源基础知识
- 5.73 MB | 11次下载 | 免费
- 3嵌入式linux-聊天程序设计
- 0.60 MB | 3次下载 | 免费
- 4DIY动手组装LED电子显示屏
- 0.98 MB | 3次下载 | 免费
- 5基于FPGA的C8051F单片机开发板设计
- 0.70 MB | 2次下载 | 免费
- 651单片机窗帘控制器仿真程序
- 1.93 MB | 2次下载 | 免费
- 751单片机PM2.5检测系统程序
- 0.83 MB | 2次下载 | 免费
- 8基于51单片机的RGB调色灯程序仿真
- 0.86 MB | 2次下载 | 免费
本月
- 1OrCAD10.5下载OrCAD10.5中文版软件
- 0.00 MB | 234315次下载 | 免费
- 2555集成电路应用800例(新编版)
- 0.00 MB | 33566次下载 | 免费
- 3接口电路图大全
- 未知 | 30323次下载 | 免费
- 4开关电源设计实例指南
- 未知 | 21549次下载 | 免费
- 5电气工程师手册免费下载(新编第二版pdf电子书)
- 0.00 MB | 15349次下载 | 免费
- 6数字电路基础pdf(下载)
- 未知 | 13750次下载 | 免费
- 7电子制作实例集锦 下载
- 未知 | 8113次下载 | 免费
- 8《LED驱动电路设计》 温德尔著
- 0.00 MB | 6656次下载 | 免费
总榜
- 1matlab软件下载入口
- 未知 | 935054次下载 | 免费
- 2protel99se软件下载(可英文版转中文版)
- 78.1 MB | 537798次下载 | 免费
- 3MATLAB 7.1 下载 (含软件介绍)
- 未知 | 420027次下载 | 免费
- 4OrCAD10.5下载OrCAD10.5中文版软件
- 0.00 MB | 234315次下载 | 免费
- 5Altium DXP2002下载入口
- 未知 | 233046次下载 | 免费
- 6电路仿真软件multisim 10.0免费下载
- 340992 | 191186次下载 | 免费
- 7十天学会AVR单片机与C语言视频教程 下载
- 158M | 183279次下载 | 免费
- 8proe5.0野火版下载(中文版免费下载)
- 未知 | 138040次下载 | 免费
工商网监
评论