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MAX6828

更新时间： 2024-12-01 14:57:51
品牌 Logo 应用领域
亚德诺 - ADI 监控微处理器
页数 文件大小 规格书
13页 1584K
描述
双路、超低电压、SOT23封装、微处理器监控电路，带有手动复位及看门狗定时器

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中文翻译

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MAX6828 数据手册

 浏览型号MAX6828的Datasheet PDF文件第2页浏览型号MAX6828的Datasheet PDF文件第3页浏览型号MAX6828的Datasheet PDF文件第4页浏览型号MAX6828的Datasheet PDF文件第5页浏览型号MAX6828的Datasheet PDF文件第6页浏览型号MAX6828的Datasheet PDF文件第7页 
MAX6826-MAX6831  
Dual Ultra-Low-Voltage SOT23 µP Supervisors  
with Manual Reset and Watchdog Timer  
General Description  
Features  
● Monitor Primary V  
Supplies from +1.8V  
The MAX6826–MAX6831 are ultra-low-voltage micropro-  
cessor (µP) supervisory circuits designed to monitor two  
power supplies and have manual reset and watchdog  
input functions. These devices assert a system reset  
if any of the monitored supplies fall below the prepro-  
grammed thresholds, and maintain reset for a minimum  
timeout period after the supplies rise above the threshold.  
Microprocessor supervisors significantly improve system  
reliability and accuracy compared to separate ICs or  
discrete components. These devices monitor primary  
voltages from +1.8V to +5.0V and secondary voltages  
from +0.9V to +2.5V. These devices are guaranteed to be  
CC  
to +5.0V and Secondary V  
from +0.9V to +2.5V  
Supplies  
CC2  
● User Adjustable RESET IN Down to +0.63V  
(MAX6826/MAX6827/MAX6828)  
● 140ms (min) Reset Timeout Delay  
● 1.6s Watchdog Timeout Period  
● Manual Reset Input  
● Three Reset Output Options  
Push-Pull RESET  
Push-Pull RESET  
in the correct state for V  
down to +1.0V.  
Open-Drain RESET  
CC  
A variety of preprogrammed reset threshold voltages  
are available (see the Threshold Suffix Guide). The  
devices include manual reset and watchdog inputs.  
The MAX6829/MAX6830/MAX6831 provide a factory-  
trimmed threshold to monitor a 2nd voltage down to  
+0.9V. The MAX6826/MAX6829 have a push-pull  
RESET, the MAX6827/MAX6830 have a push-pull  
RESET and the MAX6828/MAX6831 have an open-drain  
RESET. The MAX6826/MAX6827/MAX6828 have an  
auxiliary monitor that allows user adjustable input to  
monitor voltages down to +0.6V. see Selector Guide for  
functions available.  
● Guaranteed Reset Valid Down to V  
= +1.0V  
CC  
● Immune to Short Negative V  
● No External Components  
Transients  
CC  
● Small 6-pin SOT23 Packages  
Ordering Information  
†
PART  
TEMP RANGE  
PIN-PACKAGE  
6 SOT23  
MAX6826_UT-T  
MAX6827_UT-T  
MAX6828_UT-T  
MAX6829_ _UT-T  
MAX6830_ _UT-T  
MAX6831_ _UT-T  
-40°C to +125°C  
-40°C to +125°C  
-40°C to +125°C  
-40°C to +125°C  
-40°C to +125°C  
-40°C to +125°C  
6 SOT23  
6 SOT23  
6 SOT23  
6 SOT23  
Applications  
6 SOT23  
● Portable/Battery-  
● Intelligent Instruments  
● Critical µP Monitoring  
†Insert the desired suffix letter (from Standard versions table)  
into the blanks to complete the part number.  
Powered Equipment  
● Embedded Controllers ● Multivoltage Systems  
Devices are available in both leaded and lead-free packaging.  
Specify lead-free by replacing “-T” with “+T” when ordering.  
Pin Configuration  
Standard Versions Table*  
TOP VIEW  
MAX6826/MAX6827/MAX6828  
RESET(RESET)  
1
2
3
6
5
4
V
CC  
L
S
R
Z
V
MAX6826–  
MAX6831  
GND  
RESET IN/V  
WDI  
CC2  
MR  
SOT23-6  
*Samples are typically available for standard versions only. The  
MAX6826/MAX6827/MAX6828 require a 2.5k minimum order  
increment for all versions. Contact factory for availability.  
(RESET) MAX6827/MAX6830 ONLY  
RESET IN FOR MAX6826/MAX6827/MAX6828 ONLY  
FOR MAX6829/MAX6830/MAX6831 ONLY  
V
CC2  
Typical Operating Circuit, Threshold Suffix Guide, and  
Selector Guide appear at end of data sheet.  
Standard Versions Table continued at end of data sheet.  
19-1867; Rev 3; 7/14  
1234567...13

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