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描述(持续)
PACKAGEDISSIPATIONRATINGS
ABSOLUTEMAXIMUMRATINGS
bq29312A
SLUS629A–JANUARY2005–REVISEDAUGUST2005
thesedeviceshavelimitedbuilt-inesdprotection.theleadsshouldbeshortedtogetherorthedevice
placedinconductivefoamduringstorageorhandlingtopreventelectrostaticdamagetothemosgates.
thecommunicationsinterfaceallowsthehosttoobserveandcontrolthecurrentstatusofthebq29312a.它
enablescellbalancing,entersdifferentpowermodes,setsoverloadlevels,setstheoverloadblankingdelaytime,
setsshort-circuitthresholdlevelsforchargeanddischarge,andsetstheshort-circuitblankingdelaytime.
cellbalancingofeachcellisperformedviaacellbypasspath,whichisenabledviatheinternalcontrolregister
accessibleviatheI
2
ccompatibleinterface.themaximumbypasscurrentissetviaanexternalseriesresistor
andinternalfetonresistance(typical400
Ω
).
ORDERINGINFORMATION
(1)
PACKAGED
T
一个
tssop(pw)
(2)
qfn(rth)
(3)
–40°cto85°cbq29312apwr-sabq29312arth
(1)forthemostcurrentpackageandorderinginformation,seethepackageoptionaddendumattheendofthisdocument,orseetheti
websiteatwww.德州仪器.com.
(2)thebq29312acanbeorderedintapeandreelbyaddingthesuffixrtotheorderablepartnumber,ie:bq29312apwrbq29312arthr.
(3)theqfnpackageisalsomadeavailableinminireel,addsuffixttotheorderablepartnumber,ie:bq29312artht.
POWERRATING
POWERRATINGDERATINGFACTOR
包装
T
一个
≤
25°CABOVET
一个
≤
25°C
T
一个
≤
70°CT
一个
=85°C
pw874mw6.99w/°c559mw454mw
overoperatingfree-airtemperaturerangeunlessotherwisenoted
(1)(2)
bq29312A
V
CC
supplyvoltagerangepack,bat–0.3vto34v
vc1,vc2,vc3,vc4–0.3vto34v
sr1,sr2–1.0vto1.0v
vc5–1.0vto4.0v
V
I
Inputvoltagerange
vc1tovc2,vc2tovc3,vc3tovc4,vc4to
–0.3to8.5v
VC5
wdi,睡眠,sclk,sdata–0.3to8.5v
zvchg–0.3vto34v
dsg,chg–0.3vtobat
od–0.3vto34v
V
O
Outputvoltagerange
pms–0.3vtopack–0.2v
tout,sclk,sdata,cell,xalert–0.3to7v
Currentforcellbalancing10mA
ContinuoustotalpowerdissipationSeeDissipationRatingTable
T
stg
Storagetemperaturerange–65°Cto150°C
leadtemperature(焊接,10s)300°c
(1)stressesbeyondthoselistedunder"absolutemaximumratings"maycausepermanentdamagetothedevice.thesearestressratings
仅有的,andfunctionaloperationofthedeviceattheseoranyotherconditionsbeyondthoseindicatedunder"recommendedoperating
情况"isnotimplied.exposuretoabsolute-最大-ratedconditionsforextendedperiodsmayaffectdevicereliability.
(2)allvoltagesarewithrespecttogroundofthisdeviceexceptvcn–vc(n+1),wheren=1-,2-,3-,4-cellvoltage.
2
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