BQ24030-Q1 Datasheet, PDF (11/34 Pages) Texas Instruments – SINGLE-CHIP CHARGE AND SYSTEM POWER-PATH MANAGEMENT IC

bq24030-Q1
bq24031-Q1
www.ti.com.................................................................................................................................................... SLUS793B – APRIL 2008 – REVISED OCTOBER 2009
POR
Yes
No
Yes
Vcc > V _I(OUT)
checked at all
No
times?
Yes
SLEEP MODE
Indicate SLEEP
MODE
VI(BAT) < V(LOWV) _Yes
?
Reset and Start
t(PRECHG)timer
No
Reset all timers,
Start t _(CHG) timer
Regulate Current
or Voltage
Indicate Charge−
In−Progress
No
Regulate
IO(PRECHG)
Indicate Charge−
In−Progress
VI(OUT) <V(LOWV)
Yes
t _(CHG)
Expired?
No
Yes
VI(OUT) <V(LOWV)
?
Yes
t(PRECHG)
No
Expired?
Yes
Fault Condition
Indicate Fault
No
I(TERM)
detection?
Yes
Yes
Turn off charge
Indicate DONE
No
VI(OUT)> V(RCH)
?
No
Enable I(FAULT)
current
No
VI(OUT)> V _(RCH)
?
Yes
Disable I(FAULT)
current
V _I(OUT)< V(RCH)
?
Figure 3. Charge Control Operational Flow Chart
Copyright © 2008–2009, Texas Instruments Incorporated
Submit Documentation Feedback
11
Product Folder Link(s): bq24030-Q1 bq24031-Q1