LTC3576EUFE View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LTC3576EUFE' PDF : 48 Pages View PDF
OPERATION
LTC3576/LTC3576-1
Battery Charger Flow Chart
POWER ON/
ENABLE CHARGER
CLEAR EVENT TIMER
ASSERT CHRG LOW
YES
NTC OUT OF RANGE
NO
BAT < 2.85V
BATTERY STATE
BAT > VFLOAT – E
CHARGE AT
100V/RPROG (C/10 RATE)
2.85V < BAT < VFLOAT – E
CHARGE AT
1030V/RPROG RATE
CHARGE WITH
FIXED VOLTAGE
(VFLOAT)
RUN EVENT TIMER
PAUSE EVENT TIMER
RUN EVENT TIMER
INHIBIT CHARGING
PAUSE EVENT TIMER
CHRG CURRENTLY YES
HIGH-Z
NO
INDICATE
NTC FAULT
AT CHRG
NO
TIMER > 30 MINUTES
YES
INHIBIT CHARGING
INDICATE BATTERY
FAULT AT CHRG
NO
BAT > 2.85V
YES
NO
TIMER > 4 HOURS
YES
STOP CHARGING
BAT RISING
YES
THROUGH
VRECHRG
NO
BAT FALLING
YES
THROUGH
VRECHRG
NO
CHRG HIGH-Z
NO
BAT < VRECHRG
YES
NO
IBAT < C/10
YES
CHRG HIGH-Z
3576 FLOW
3576f
25
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