Datasheet

Yes
No
22.5min Timer
Expired?
No
Yes
IndicateFault
POR?
or
APG/THERMtoggle?
or
ENtoggle?
Yes
No
Yes
Charge Timer
Expired?
No
IndicatePre-
Charge
Regulate
I
(PRECHG)
IndicateCharge
RegulateCurrent
orVoltage
ResetandStart
22.5min Timer
POR
Reset All Timers,
StartCharge T imer
(TMRSEL Input)
No
FaultCondition
No
Yes
IndicateDONE
TurnOffCharge
Taper
Detected?
No
No
Yes
Yes
No
Yes
No
Yes
22.5min Timer
Expired?
Yes
Yes
IndicateDONE
Start22.5min
Timer
V
I(VSENSE)
<V
(HIGHV)
?
or
POR?
or
APG/THERM Toggle?
or
EN Toggle?
V
I(VSENSE)
<V
(LOWV)
?
V
I(VSENSE)
>V
(OVERV)
?
V
I(VSENSE)
>V
(OVERV)
?
V
I(VSENSE)
<V
(LOWV)
?
V
I(VSENSE)
<V
(LOWV)
?
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SLUS476F –DECEMBER 2000–REVISED MAY 2012 www.ti.com
Figure 15. Operational Flow Chart
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