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特点
1
2
3
4
8
7
6
5
SENSE1
SENSE2
SENSE3
地
v
dd
MR
重置
重置
d 或 dgn p组件
(top 查看)
TypicalApplications
感觉 1
感觉 2 重置
TPS3307−33
感觉 3
v
dd
地
100nF
重置
v
dd
地
3.3v5v2.5v
470k
Ω
620k
Ω
•
应用程序 使用 dsps,
微控制器 或 微处理器
工业 设备
可编程 控件
汽车 系统
便携式/蓄电池通电设备
智能仪器仪表
无线 通信 系统
笔记本/台式机 计算机
MSP430C325
描述
tps3307-18,tps3307-25,tps3307-33
SLVS199B–DECEMBER1998–REVISEDOCTOBER2004
TRIPLEPROCESSORSUPERVISORS
•
TripleSupervisoryCircuitsforDSPand
处理器-basedsystems
•
电源-onresetgeneratorwithfixeddelay
timeof200ms,noexternalcapacitorneeded
•
温度-compensatedvoltagereference
•
MaximumSupplyCurrentof40µA
•
supplyvoltagerange:2vto6v
•
DefinedRESETOutputFromV
dd
≥
1.1v
•
msop-8andso-8packages
•
温度范围:–40
°
Cto85
°
c
figure1listssomeofthetypicalapplicationsforthetps3307family,andaschematicdiagramfora
处理器-basedsystemapplication.thisapplicationusestipartnumberstps3307-33andmsp430c325.
figure1.applicationsusingthetps3307family
TheTPS3307familyisaseriesofmicropowersupplyvoltagesupervisorsdesignedforcircuitinitialization
primarilyindspandprocessor-basedsystems,whichrequiremorethanonesupplyvoltage.
theproductspectrumofthetps3307-xxisdesignedformonitoringthreeindependentsupplyvoltages:
3.3v/1.8v/adj,3.3v/2.5v/adjor3.3v/5v/adj.theadjustablesenseinputallowsthemonitoringofanysupply
电压>1.25v.
Thevarioussupplyvoltagesupervisorsaredesignedtomonitorthenominalsupplyvoltageasshowninthe
followingsupplyvoltagemonitoringtable.
duringpower-开启,resetisassertedwhenthesupplyvoltagev
dd
becomeshigherthan1.1v.此后,这
supplyvoltagesupervisormonitorstheSENSE
n
inputsandkeepsRESETactiveaslongasSENSE
n
保持
belowthethresholdvoltageV
IT+
.
pleasebeawarethatanimportantnoticeconcerningavailability,标准保修,anduseincriticalapplicationsoftexas
instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
powerpadisatrademarkoftexasinstruments.
productiondatainformationiscurrentasofpublicationdate.
copyright©1998–2004,texasinstrumentsincorporated
ProductsconformtospecificationsperthetermsoftheTexas
instrumentsstandardwarranty.productionprocessingdoesnot
必要包括测试所有参数.
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