bq2057, bq2057C
bq2057T, bq2057W
SLUS025F − MAY 2001 − REVISED JULY 2002
APPLICATION INFORMATION
POR
Sleep Mode
VCC > V(BAT)
Checked at All
Times
No
Indicate SLEEP
MODE
(STAT = Hi-Z)
Yes
Suspend Charge
TS Pin
in TS1 to TS2
Range
No
Indicate CHARGE
SUSPEND
(STAT = Hi-Z)
Yes
Regulate
I(PRECHG)
V(BAT) <V(min)
Yes
Indicate
Charge In-Progress
(STAT = High)
Suspend Charge
No
TS Pin
in TS1 to TS2
Range
No
Indicate CHARGE
SUSPEND
(STAT = Hi-Z)
Regulate
Current or Voltage
Indicate
Charge In-Progress
(STAT = High)
Yes
Suspend Charge
TS Pin
in TS1 to TS2
Range
No
Indicate CHARGE
SUSPEND
(STAT = Hi-Z)
No
V(BAT) < V(min)
TS Pin
in TS1 to TS2
Range
No
Yes
Yes
Yes
TS Pin
in TS1 to TS2
Range
No
V(BAT) < V(min)
Yes
No
Terminate Charge
Yes
I(TERM)
Detected
Yes
Indicate CHARGE
Done
(STAT = Low)
V(BAT) < V(RCH)
No
Yes
Figure 2. Operation Flowchart
8
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