Datasheet

Vcc>V
I(BAT)
checkedatall
V
I(BAT)
<V
(LOWV)
Yes
No
t
(PRECHG)
Expired?
No
Yes
IndicateFault
Yes
No
Yes
t
(CHG)
Expired?
No
IndicateCharge−
In−Progress
Regulate
I
O(PRECHG)
IndicateCharge−
In−Progress
RegulateCurrent
orV oltage
No
ResetandStart
t
(PRECHG)
timer
POR
Yes
Resetalltimers,
Startt
(CHG)
timer
No
Yes
V
I(BAT)
<V
(RCH)
?
No
V
I(BAT)
<V
(LOWV)
No
FaultCondition
Yes
Yes
IndicateDONE
T urnoffcharge
IndicateSLEEP
MODE
SLEEPMODE
V
I(BAT)
<V
(LOWV)
I
(TERM)
detection?
No
Yes
Yes
V
I(BAT)
>V
(RCH)
?
EnableI
(F AUL T)
current
V
I(BAT)
>V
(RCH)
?
No
Yes
DisableI
(F AUL T)
current
?
times?
?
bq24070
bq24071
www.ti.com SLUS694F –MARCH 2006–REVISED DECEMBER 2009
Figure 4. Charge Control Operational Flow Chart
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