Datasheet

LTC4098/LTC4098-1
21
40981fc
CLEAR EVENT TIMER
NTC OUT OF RANGE
CHRG CURRENTLY
Hi-Z
INDICATE
NTC FAULT
AT CHRG
BATTERY STATE
CHARGE AT
1030V/R
PROG
RATE
PAUSE EVENT TIMER
PAUSE EVENT TIMER
CHARGE WITH
FIXED VOLTAGE
(V
FLOAT
)
RUN EVENT TIMER
CHARGE AT
100V/R
PROG
(C/10 RATE)
RUN EVENT TIMER
ASSERT CHRG LOW
POWER ON/
ENABLE CHARGER
TIMER > 30 MINUTES TIMER > 4 HOURS
BAT > 2.85V BAT < V
RECHRG
I
BAT
< C/10
NO
NO
YES
YES
YES
YES
YES
YES
NO
NO
BAT > V
FLOAT
– EBAT < 2.85V
2.85V < BAT < V
FLOAT
– E
NO
NO
NONO
INHIBIT CHARGING STOP CHARGING
INDICATE BATTERY
FAULT AT CHRG
BAT RISING
THROUGH
V
RECHRG
BAT FALLING
THROUGH
V
RECHRG
CHRG HIGH-Z CHRG Hi-Z
40981 F06
NO
YES
YES
INHIBIT CHARGING
YES
Figure 6. Battery Charger State Diagram
OPERATION