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V
BAT
重置
MR
PFO
8
7
6
5
1
2
3
4
V
输出
V
DD
地
PFI
dgk pACKAGE
(t运算 视图)
真实的 大小
3,05 mm x 4,98 mm
V
DD
V
BAT
PFI
Backup
电池
重置
PFO
V
输出
地
R
x
R
y
外部
源
0.1
µ
F
电源
供应
地
重置
i/o
V
CC
Switchover
电容
0.1
µ
F
TPS3619
TPS3620
微控制器
或者
微处理器
手工的
重置
MR
tps3619-33,tps3619-50
tps3620-33,tps3620-50
SLVS387E–APRIL2001–REVISEDSEPTEMBER2004
backup-batterysupervisorsforramretention
•
supplycurrentof40µa(最大值)
TheTPS3619andTPS3620familiesofsupervisory
circuitsmonitorandcontrolprocessoractivityby
•
电池-supplycurrentof100na(最大值)
providingbackup-batteryswitchoverfordataretention
•
precisionsupplyvoltagemonitor3.3v,5v,
ofcmosram.
OtherOptionsonRequest
duringpoweron,resetisassertedwhenthe
•
backup-batteryvoltagecanexceedv
DD
supplyvoltage(v
DD
orV
BAT
)becomeshigherthan1.1
•
poweronresetgeneratorwithfixed100-ms
v.thereafter,thesupplyvoltagesupervisormonitors
ResetDelayTime
V
DD
andkeepsRESEToutputactiveaslongasV
DD
•
voltagemonitorforpower-failor
remainsbelowthethresholdvoltage(v
它
).aninternal
timerdelaysthereturnoftheoutputtotheinactive
低-batterymonitoring
状态(高)toensurepropersystemreset.thedelay
•
batteryfreshnessseal(tps3619)
timestartsafterV
DD
hasrisenaboveV
它
.whenthe
•
管脚-为-pincompatiblewithmax819,
supplyvoltagedropsbelowV
它,
theoutputbecomes
max703,andmax704
起作用的(低)又一次.
•
8-pinmsoppackage
Theproductspectrumisdesignedforsupplyvoltages
•
temperaturerange-40
°
Cto85
°
C
of3.3vand5v.thetps3619andtps3620are
availableinan8-pinmsoppackageandare
characterizedforoperationoveratemperaturerange
的-40
°
Cto85
°
c.
•
FaxMachines
•
设置-topboxes
•
AdvancedVoiceMailSystems
•
portablebattery-poweredequipment
•
ComputerEquipment
•
AdvancedModems
•
AutomotiveSystems
•
portablelong-timemonitoringequipment
•
要点-的-saleequipment
TYPICALOPERATINGCIRCUIT
pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsoftexas
instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
productiondatainformationiscurrentasofpublicationdate.
copyright©2001–2004,texasinstrumentsincorporated
ProductsconformtospecificationsperthetermsoftheTexas
instrumentsstandardwarranty.productionprocessingdoesnot
necessarilyincludetestingofallparameters.
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