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LM2925T

更新时间： 2024-11-04 22:51:43
品牌 Logo 应用领域
美国国家半导体 - NSC 稳压器
页数 文件大小 规格书
8页 226K
描述
Low Dropout Regulator with Delayed Reset

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中文翻译

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LM2925T 技术参数

是否Rohs认证： 不符合生命周期：Obsolete
包装说明：, SIP5,.1,67TBReach Compliance Code：unknown
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.79可调性：FIXED
最大回动电压 1：0.6 V标称回动电压 1：0.8 V
最大绝对输入电压：26 V最大输入电压：26 V
最小输入电压：6 VJESD-30 代码：R-PSFM-T5
JESD-609代码：e0最大电网调整率：0.05%
最大负载调整率：0.05%功能数量：1
输出次数：1端子数量：5
工作温度TJ-Max：125 °C工作温度TJ-Min：-40 °C
最大输出电流 1：0.75 A最大输出电压 1：5.25 V
最小输出电压 1：4.75 V标称输出电压 1：5 V
封装主体材料：PLASTIC/EPOXY封装等效代码：SIP5,.1,67TB
封装形状：RECTANGULAR封装形式：FLANGE MOUNT
峰值回流温度（摄氏度）：NOT SPECIFIED认证状态：Not Qualified
调节器类型：FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR子类别：Other Regulators
表面贴装：NO技术：BIPOLAR
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：SINGLE
处于峰值回流温度下的最长时间：NOT SPECIFIED最大电压容差：5%
Base Number Matches：1

LM2925T 数据手册

 浏览型号LM2925T的Datasheet PDF文件第2页浏览型号LM2925T的Datasheet PDF文件第3页浏览型号LM2925T的Datasheet PDF文件第4页浏览型号LM2925T的Datasheet PDF文件第5页浏览型号LM2925T的Datasheet PDF文件第6页浏览型号LM2925T的Datasheet PDF文件第7页 
April 1998  
LM2925  
Low Dropout Regulator with Delayed Reset  
LM2925 cannot be harmed by temporary mirror-image inser-  
tion. Familiar regulator features such as short circuit and  
thermal overload protection are also provided.  
General Description  
The LM2925 features a low dropout, high current regulator.  
Also included on-chip is a reset function with an externally  
set delay time. Upon power up, or after the detection of any  
error in the regulated output, the reset pin remains in the ac-  
tive low state for the duration of the delay. Types of errors de-  
tected include any that cause the output to become unregu-  
lated: low input voltage, thermal shutdown, short circuit,  
input transients, etc. No external pull-up resistor is neces-  
sary. The current charging the delay capacitor is very low, al-  
lowing long delay times.  
Features  
n 5V, 750 mA output  
n Externally set delay for reset  
n Input-output differential less than 0.6V at 0.5A  
n Reverse battery protection  
n 60V load dump protection  
n −50V reverse transient protection  
n Short circuit protection  
n Internal thermal overload protection  
n Available in plastic TO-220  
n Long delay times available  
n P+ Product Enhancement tested  
Designed primarily for automotive applications, the LM2925  
and all regulated circuitry are protected from reverse battery  
installations or two-battery jumps. During line transients,  
such as a load dump (60V) when the input voltage to the  
regulator can momentarily exceed the specified maximum  
operating voltage, the 0.75A regulator will automatically shut  
down to protect both internal circuits and the load. The  
Typical Application Circuit  
Connection Diagram  
TO-220 5-Lead  
DS005268-2  
Order Number LM2925T  
See NS Package Number T05A  
DS005268-1  
*
Required if regulator is located far from power supply filter.  
**  
C
must be at least 10 µF to maintain stability. May be increased  
OUT  
without bound to maintain regulation during transients. Locate as close as  
possible to 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.  
FIGURE 1. Test and Application Circuit  
© 1998 National Semiconductor Corporation  
DS005268  
www.national.com  
12345678

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