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ELECTRICALCHARACTERISTICS
1
2
3
4
8
7
6
5
VC1
VC2
VC3
地
输出
VDD
CD
VC4
I
CC
I
在
I
在
I
在
bq29400,bq29400a
bq29401,bq29405
SLUS568B–JULY2003–REVISEDNOVEMBER2004
overrecommendedoperatingfree-airtemperaturerange,t
一个
=25
°
c(unlessotherwisenoted)
(1)
PARAMETERTESTCONDITIONMINNOMMAXUNIT
2535
V
(oa)
OvervoltagedetectionaccuracymV
T
一个
=–20
°
Cto85
°
C2550
bq294004.35
bq2940a4.40
Overvoltagedetection
V
(保护)
V
电压
(1)
bq294014.45
bq294054.65
V
hys
Overvoltagedetectionhysteresis
(1)
300mV
v2,v3,vc4inputvc1=vc2=vc3=vc4=3.5v
I
I
Inputcurrent
±
0.3µa
(seefigure1)
t
D1
overvoltagedetectiondelaytimecd=0.22µf1.01.52.0s
I
(cd_dis)
CDGNDclampcurrentCD=1V512µA
vc1=vc2=vc3=vc4=3.5v(seefigure1)2.03.0
I
CC
SupplycurrentµA
vc1=vc2=vc3=vc4=2.3v(seefigure1)1.52.5
V
(输出)
outpindrivevoltagevc1=vc2=vc3=vc4=4.7v,ioh=0ma7v
I
OH
高-leveloutputcurrentout=3v,vc1=vc2=vc3=vc4=4.7v–1ma
I
OL
低-leveloutputcurrentout=0.1vvc1=vc3=vc4=3.5v5µa
(1)levelsoftheover-voltagedetectionandthehysteresiscanbeadjusted.forassistancecontacttexasinstrumentssalesrepresentative.
figure1.i
CC
,i
在
度量(tssoppackage)
TerminalFunctions
terminalno.
描述
MSOPTSSOP
名字
(dtc)(pw)
81VC1Sensevoltageinputformostpositivecell
72VC2Sensevoltageinputforsecondmostpositivecell
63VC3Sensevoltageinputforthirdmostpositivecell
54GNDGroundpin
45VC4Sensevoltageinputforleastpositivecell
36CDAnexternalcapacitorisconnectedtodeterminetheprogrammabledelaytime
27VDDPowersupply
18OUTOutput
3