www.德州仪器.com
bq24030,bq24031,bq24032,
bq24032a,bq24035,bq24038,bq24039
SLUS618C–AUGUST2004–REVISEDJUNE2005
electricalcharacteristics(持续)
overjunctiontemperaturerange(0°c
≤
T
J
≤
125°c)andtherecommendedsupplyvoltagerange(unlessotherwisenoted)
PARAMETERTESTCONDITIONSMINTYPMAXUNIT
stat1,stat2.acpgandusbpg,pgopendrain(od)输出
(16)
I
OL
=5ma,anexternalpullup
V
OL
低-leveloutputsaturationvoltage0.25v
电阻
≥
1krequired.
I
LKG
Inputleakagecurrent15µA
iset2,ce,vbsel,andiset3inputs
V
IL
低-levelinputvoltage00.4
V
V
IH
高-levelinputvoltage1.4
低-levelinputcurrent,ceor
I
IL
–1
ISET3
高-levelinputcurrent,ceor
I
IH
1
ISET3
µA
I
IL
低-levelinputcurrent,iset2v
ISET2
=0V–20
I
IH
高-levelinputcurrent,iset2v
ISET2
=V
CC
40
I
IL1
低-levelinputcurrentvbsel=low51
I
IH1
高-levelinputcurrentvbsel=high15
t
(ce-hldoff)
holdofftime,cecegoinglowonly46ms
PSELINPUT
FallingHi
→
低;280k±10%applied
0.97511.025
whenlow.(bq24030/2a/5/8)
V
IL
低-levelinputvoltagev
(bq24032only)00.4
InputR
PSEL
setsexternalhysteresis
V
IL
+.01v
IL
+.024
(bq24030/2a/5/8)
V
IH
高-levelinputvoltagev
(bq24032only)1.4
I
IL
低-levelinputcurrent,psel–1µa
I
IH
高-levelinputcurrent,pselµa
计时器
K
(tmr)
Timersetfactort
(chg)
=K
(tmr)
×R
(tmr)
0.3130.3600.414s/
Ω
R
(tmr)
(17)
Externalresistorlimits30100k
Ω
t
(prechg)
prechargetimer0.09×t
(chg)
0.10×t
(chg)
0.11×t
(chg)
s
Timerfaultrecoverypullupfrom
I
(故障)
1k
Ω
OUTtoBAT
chargersleepthresholds(acpg,pg,andusbpgthresholds,低
→
powergood)
V
VCC
≤
V
(uvlo)
≤
V
i(bat)
≤
V
o(bat-reg)
,
V
(slpent)
(18)
睡眠-modeentrythresholdv
i(bat)
不
(激励-向上)
延迟
+125mV
V
V
VCC
≥
V
(uvlo)
≤
V
i(bat)
≤
V
o(bat-reg)
,
V
(slpexit)
(18)
睡眠-modeexitthresholdv
i(bat)
不
(激励-向上)
延迟
+190mV
R
(tmr)
=50k
Ω
,
V
(交流)
orV
(usb)
ordecreasingbelow
t
(degl)
Deglitchtimeforsleepmode
(19)
22.5ms
门槛,100-nsfalltime,10-mvover-
驱动
开始-upcontrolandusbboot-向上
OnthefirstapplicationofUSBinput
t
(激励-向上)
激励-uptimepoweroracinputwithpsellow(or120150180ms
iset3lowforbq24039)
(16)seechargersleepmodeforacpg(v
CC
=V
交流
)andusbps(v
CC
=V
USB
)规格.
(17)todisablethesafetytimerandchargetermination,tietmrtotheldopin.
(18)theicisconsideredinsleepmodewhenbothacandusbareabsent(acpg=usbgp=opendrain).
(19)doesnotdeclaresleepmodeuntilafterthedeglitchtimeandimplementtheneededpowertransferimmediatelyaccordingtothe
switchingspecification.
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