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LM2984T

更新时间： 2024-11-22 22:51:43
品牌 Logo 应用领域
美国国家半导体 - NSC 微处理器
页数 文件大小 规格书
16页 402K
描述
Microprocessor Power Supply System

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中文翻译

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LM2984T 技术参数

是否Rohs认证： 不符合生命周期：Transferred
Reach Compliance Code：not_compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.15
可调阈值：NO模拟集成电路 - 其他类型：POWER SUPPLY SUPPORT CIRCUIT
JESD-30 代码：R-PZFM-T11JESD-609代码：e0
湿度敏感等级：1信道数量：1
功能数量：1端子数量：11
最高工作温度：125 °C最低工作温度：-40 °C
最大输出电流：0.5 A标称输出电压：5 V
封装主体材料：PLASTIC/EPOXY封装代码：ZIP
封装等效代码：ZIP11,.2,.17,67TB封装形状：RECTANGULAR
封装形式：FLANGE MOUNT峰值回流温度（摄氏度）：260
认证状态：Not Qualified子类别：Power Management Circuits
标称供电电压 (Vsup)：14 V表面贴装：NO
技术：BIPOLAR温度等级：AUTOMOTIVE
端子面层：Tin/Lead (Sn/Pb)端子形式：THROUGH-HOLE
端子节距：1.7 mm端子位置：ZIG-ZAG
处于峰值回流温度下的最长时间：40Base Number Matches：1

LM2984T 数据手册

 浏览型号LM2984T的Datasheet PDF文件第2页浏览型号LM2984T的Datasheet PDF文件第3页浏览型号LM2984T的Datasheet PDF文件第4页浏览型号LM2984T的Datasheet PDF文件第5页浏览型号LM2984T的Datasheet PDF文件第6页浏览型号LM2984T的Datasheet PDF文件第7页 
April 1998  
LM2984  
Microprocessor Power Supply System  
General Description  
Features  
n Three low dropout tracking regulators  
n Output current in excess of 500 mA  
n Fully specified for −40˚C to +125˚C operation  
n Low quiescent current standby regulator  
n Microprocessor malfunction RESET flag  
n Delayed RESET on power-up  
n Accurate pretrimmed 5V outputs  
n Reverse battery protection  
The LM2984 positive voltage regulator features three inde-  
pendent and tracking outputs capable of delivering the  
power for logic circuits, peripheral sensors and standby  
memory in a typical microprocessor system. The LM2984 in-  
cludes circuitry which monitors both its own high-current out-  
put and also an external µP. If any error conditions are  
sensed in either, a reset error flag is set and maintained until  
the malfunction terminates. Since these functions are in-  
cluded in the same package with the three regulators, a  
great saving in board space can be realized in the typical mi-  
croprocessor system. The LM2984 also features very low  
dropout voltages on each of its three regulator outputs (0.6V  
at the rated output current). Furthermore, the quiescent cur-  
rent can be reduced to 1 mA in the standby mode.  
n Overvoltage protection  
n Reverse transient protection  
n Short circuit protection  
n Internal thermal overload protection  
n ON/OFF switch for high current outputs  
n P+ Product Enhancement tested  
Designed also for vehicular applications, the LM2984 and all  
regulated circuitry are protected from reverse battery instal-  
lations or 2-battery jumps. Familiar regulator features such  
as short circuit and thermal overload protection are also pro-  
vided. Fixed outputs of 5V are available in the plastic TO-220  
power package.  
Typical Application Circuit  
DS011252-1  
C
must be at least 10 µF to maintain stability. May be increased without bound to maintain regulation during transients. Locate as close as possible to  
OUT  
the regulator. This capacitor must be rated over the same operating temperature range as the regulator. The equivalent series resistance (ESR) of this  
capacitor is critical; see curve.  
Order Number LM2984T  
See NS Package Number TA11B  
© 1998 National Semiconductor Corporation  
DS011252  
www.national.com  
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LM2984T 替代型号

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