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| BQ24081_12 Datasheet, PDF (11/25 Pages) Texas Instruments – 1-A, SINGLE-CHIP, LI-ION AND LI-POL CHARGER IC | |||
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www.ti.com
bq24080
bq24081
SLUS698E â MARCH 2006 â REVISED AUGUST 2011
POR
VCC > VI(OUT)
checked at all
No
times?
Yes
VI(OUT)<V(LOWV)
?
Yes
No
Reset All Timers,
Start t(CHG) Timer
SLEEP MODE
Indicate SLEEP
MODE
Reset and Start
t(PRECHG) Timer
Regulate
IO(PRECHG)
and
Indicate Charge-
In-Progress
Regulate Current
or Voltage
and
Indicate Charge-
In-Progress
Yes
No
VI(OUT)<V(LOWV)
?
Yes
t(CHG) Expired?
No
Yes
Yes
VI(OUT)<V(LOWV)
?
No
t(PRECHG)
Expired?
No
Yes
Fault Condition
Indicate Fault
Iterm
No
Detection
?
Yes
Turn Off Charge
Yes
VI(OUT) >V(RCH)
?
No
Enable I(FAULT)
Current
Indicate DONE
VI(OUT) <V(RCH)
No
?
Yes
VI(OUT) >V(RCH)
No
?
Yes
Disable I(FAULT)
Current
Figure 7. Operational Flow Chart
F0018-01
Copyright © 2006â2011, Texas Instruments Incorporated
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