BQ24030 Datasheet, PDF (10/20 Pages) Texas Instruments – SINGLE-CHIP CHARGE AND SYSTEM POWER-PATH MANAGEMENT IC (bqTINYI)

bq24030, bq24032, bq24035
SLUS618 – AUGUST 2004
FUNCTIONAL DESCRIPTIONS (continued)
POR
Yes
No
Yes
Vcc > VI(OUT)
checked at all times
No
Yes
SLEEP MODE
Indicate SLEEP
MODE
VI(OUT<)V(LOWV) Yes
Reset and Start
t(PRECHtGim) er
No
Reset all timers,
Start t(CHGti)mer
Regulate Current
or Voltage
Indicate Charge−
In−Progress
No
Yes
t(CHGE)xpired?
No
Yes
VI(OUT<)V(LOWV)
No
I(TAPER)
detection?
Yes
Yes
Turn off charge
Indicate DONE
No
Regulate
IO(PRECHG)
Indicate Charge−
In−Progress
VI(OUT<V) _(LOWV)
Yes
t(PRECHG)
Expired?
Yes
Fault Condition
Indicate Fault
VI(OUT>) V(RCH?)
No
Enable I(FAULT)
current
VI(OUT>) V(RCH?)
Yes
Disable I(FAULT)
current
VI(OUT<) V(RCH?)
No
No
Figure 3. Charge Control Operational Flow Chart
10
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