Datasheet

www.ti.com
FUNCTIONAL BLOCK DIAGRAM
STAT1
OUT
IN
VSS
CE
STAT2
Recharge
Precharge
Terminate
ISET
CHARGE
CONTROL,
TIMERand
DISPLAY LOGIC
V(OUT)
V
O(REG)
V
(SET)
V(ISET)
REFERENCE
AND
BIAS
T
DGL(RCH)
Deglitch
V(ISET)
Thermal
Shutdown
V(IN)
Suspend
InputPower
Detected
CHGENABLE
V(IN)
T
DGL(TERM)
Deglitch
Internal
Voltage
References
V
(RCH)
I
(DETECT)
I
(FAULT )
T
DGL( INDT)
Deglitch
V(OUT)+V
IN(DT)
V(IN)
T
J(REG)
T
J
TMR
Dynamically
Controlled
Oscillator
PG
Timer
Disable
V
(LOW)
V
(TERM )
I(OUT)
IOUT)/ K
(SET)
T
DGL(CHOVC)
Deglitch
V
OC
current
POR
T
DGL(OVP)
Deglitch
V(IN)
V
TMR(OFF)
InputOver-Voltage
V
(SET) ,
V
(PRECHG)
V
(PRECHG)
PRE_CHARGE
V(IN)
TS
+
-
+
-
+
-
+
-
-
+
-
+
-
V(IN)
BATTERY ABSENTDETECTION
ANDSHORTRECOVERY
BAT
BACKGATEBIAS
+
-
+
+
-
Timer
Fault
Over_
V
(OVP)
V(IN)
bq2406x
SLUS689A – JUNE 2006 – REVISED OCTOBER 2006
11
Submit Documentation Feedback