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LM3724EM5-4.63/NOPB PDF预览

LM3724EM5-4.63/NOPB

更新时间： 2024-11-08 11:12:31
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德州仪器 - TI 监控光电二极管
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具有手动复位功能的低功耗电压监控器和复位 IC | DBV | 5 | -40 to 125

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LM3724EM5-4.63/NOPB 数据手册

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LM3722, LM3723, LM3724  
www.ti.com  
SNVS154E –MAY 2001–REVISED MARCH 2013  
LM3722/LM3723/LM3724 5-Pin Microprocessor Reset Circuits  
Check for Samples: LM3722, LM3723, LM3724  
1
FEATURES  
DESCRIPTION  
The  
LM3722/LM3723/LM3724  
microprocessor  
2
•
Precise Monitoring of 2.5V, 3.3V, and 5V  
Supply Voltages  
supervisory circuits monitor the power supplies in  
microprocessor and digital systems. They provide a  
reset to the microprocessor during power-up, power-  
down, brown-out conditions, and manual reset.  
•
Fully Specified Over Temperature  
–
–
Industrial: −40°C to +85°C  
Extended: −40°C to +125°C  
The LM3722/LM3723/LM3724 asserts a reset signal  
whenever the supply decreases below the factory-  
programmed reset threshold. Reset will be asserted  
for at least 100ms even after VCC rises above the  
reset threshold.  
•
100 ms Minimum Power-On Reset pulse Width,  
190 ms Typical:  
–
–
–
Active-Low RESET Output (LM3722)  
Active-High RESET Output (LM3723)  
The LM3722 has an active-low RESET push-pull  
output. The LM3723 has an active-high RESET push-  
pull output. The LM3724 has an active-low open-drain  
RESET output.  
Active-Low RESET Open Drain Output  
(LM3724)  
•
•
•
•
Guaranteed RESET Output Valid for VCC ≥ 1V  
Low Supply Current, 6µA Typical  
Three standard reset voltage options are available,  
suitable for monitoring 5V, 3.3V, and 2.5V supply  
voltages. Additional reset voltages are also available;  
contact Texas Instruments for details.  
Power Supply Transient Immunity  
Compatible with MAX811/812 Applications  
APPLICATIONS  
With  
a low supply current of only 6µA, the  
LM3722/LM3723/LM3724 are ideal for use in portable  
equipment. The LM3722/LM3723/LM3724 are  
available in the 5-pin SOT-23 package.  
•
•
•
•
•
Microprocessor Systems  
Computers  
Controllers  
Intelligent Instruments  
Portable/Battery-Powered Equipment  
Typical Application Circuits  
V
V
CC  
CC  
V
V
CC  
V
CC  
V
CC  
CC  
R
L
LM3722  
LM3723  
mP  
mP  
LM3724  
RESET  
INPUT  
RESET  
*(RESET)  
RESET  
INPUT  
MR  
MR  
RESET  
PUSHBUTTON  
SWITCH  
PUSHBUTTON  
SWITCH  
GND  
GND  
GND  
GND  
Figure 1. Typical Application Circuit  
Figure 2. Typical Application Circuit with RL  
Connection  
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
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2001–2013, Texas Instruments Incorporated  
1234567...20

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LM3724EM5-4.63/NOPB 替代型号

型号 品牌 替代类型 描述 数据表
LM3724IM5-4.63/NOPB TI

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 具有手动复位功能的低功耗电压监控器和复位 IC | DBV | 5 | -40 to 85

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