ꢀ ꢁ ꢂꢃ ꢄꢅ ꢄ ꢆ ꢀ ꢁ ꢂ ꢃꢄꢅ ꢂ ꢆ ꢀꢁ ꢂ ꢃ ꢄꢅ ꢇ ꢆ ꢀꢁ ꢂ ꢃ ꢄꢅ ꢃ
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SLUS530D − SEPTEMBER 2002 − REVISED SEPTEMBER 2003
POR
SLEEP MODE
V
> V
I(BAT)
CC
No
checked at
all times
Indicate SLEEP
MODE
Yes
< V
Regulate
O(PRECHG)
I
Reset and Start
timer
V
Yes
I(BAT)
(LOWV)
t
(PRECHG)
Indicate
Charge-in-Progress
No
Reset all timers
start t
(CHG)
timers
Regulate Current
or Voltage
Indicate
Charge-in-Progress
No
V
< V
I(BAT) (LOWV)
Suspend charge
Yes
T
< t
(SHTDWN)
No
J
Indicate
Charge Suspend
Yes
t
(PRECHG)
expired?
No
Yes
T
< t
(SHTDWN)
J
t
(CHG)
expired?
No
Yes
No
Yes
Fault Condition
Indicate Fault
Yes
V
< V
(LOWV)
I(BAT)
No
I
(TERM)
detection
?
V
> V
?
I(BAT)
(RCH)
Yes
No
No
No
t
(TAPER)
expired?
Enable
I
(FAULT)
current?
I
(TAPER)
detection
?
Yes
No
No
Yes
V
> V
?
I(BAT)
(RCH)
Yes
Turn off charge
Indicate DONE
Yes
Disable
I
(FAULT)
current?
No
V
< V
?
I(BAT)
(RCH)
Yes
Enter Battery
Absent
Detection
UDG−02110
Figure 5. Operational Flow Chart
10
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