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LM7812CK

更新时间： 2024-11-25 20:29:11
品牌 Logo 应用领域
德州仪器 - TI 输出元件调节器
页数 文件大小 规格书
7页 168K
描述
12V FIXED POSITIVE REGULATOR, MBFM2, METAL CAN-2

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LM7812CK 技术参数

生命周期：Obsolete零件包装代码：TO-204AA
包装说明：,针数：2
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.65
最大输入电压：27 V最小输入电压：14.5 V
功能数量：1工作温度TJ-Max：125 °C
工作温度TJ-Min：最大输出电流 1：1 A
最大输出电压 1：12.6 V最小输出电压 1：11.4 V
标称输出电压 1：12 V调节器类型：FIXED POSITIVE SINGLE OUTPUT STANDARD REGULATOR
技术：BIPOLARBase Number Matches：1

LM7812CK 数据手册

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LM7805C, LM7812C, LM7815C  
www.ti.com  
SNOSBR7C –MAY 2004–REVISED OCTOBER 2011  
LM78XX Series Voltage Regulators  
Check for Samples: LM7805C, LM7812C, LM7815C  
1
FEATURES  
•
•
•
Output transistor safe area protection  
Internal short circuit current limit  
2
•
•
•
Output current in excess of 1A  
Internal thermal overload protection  
No external components required  
Available in the aluminum TO-3 package  
DESCRIPTION  
The LM78XX series 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.  
Voltage Range  
LM7805C  
LM7812C  
LM7815C  
5V  
12V  
15V  
Connection Diagrams  
Metal Can Package  
TO-3 (K)  
Aluminum  
Figure 1. Bottom View  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
All trademarks are the property of their respective owners.  
2
PRODUCT PREVIEW information concerns products in the  
formative or design phase of development. Characteristic data and  
other specifications are design goals. Texas Instruments reserves  
the right to change or discontinue these products without notice.  
Copyright © 2004–2011, Texas Instruments Incorporated  
1234567

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