PS401-I/SS Microchip Technology, PS401-I/SS Datasheet - Page 22

• Manufacturer Part Number: PS401-I/SS
• Description: IC FUEL GAUGE BATTERY MGR 28SSOP
• Manufacturer: Microchip Technology

Specifications of PS401-I/SS

• Lead Free Status / RoHS Status: Request inventory verification / Request inventory verification

PS401
TABLE 7-2:
DS40238B-page 22
FULLY_CHARGED bit
OVER_CHARGED_ALARM bit
TERMINATE_CHARGE_ALARM bit
OVER_TEMP_ALARM bit
TERMINATE_DISCHARGE_ALARM
bit
REMAINING_CAPACITY_ALARM bit RemainingCapacity ( )
REMAINING_TIME_ALARM bit
FULLY_DISCHARGED bit
Battery Status
PS401 ALARMS AND STATUS SUMMARY
Set at End-Of-Charge Condition:
Charge FET Off
AND
Any VC(x) input > 4.175V
AND
IAVG < EOC_IAVG for ChrgCntrlTimer
number of consecutive counts
V
V
OR
Charging Temperature ( ) >
ChrgMaxTemp (default 60°C)
OR
Fully_Charged bit = 1
Temperature ( ) > HighTempAlarm
(default 55°C)
Primary Method:
V
AND
Above condition continues for
NearEODRecheck time.
Secondary Method:
V
AND
Above condition continues for
EODRecheck time.
< RemainingCapacityAlarm ( )
AverageTimeToEmpty ( )
< RemainingTimeAlarm ( )
RemainingCapacity ( ) = 0
CELL
CELL
CELL
CELL
x > TCAVolt (default 4.5V/Cell)
x > TCAVolt (default 4.5V/Cell)
x < VEOD1 (per Look Up Table)
x < VEOD2 (default 3.1V/Cell)
Set Condition
RelativeStateOfCharge ( )
< ClearFullyCharged
(default RSOC=80%)
All V
All V
AND
Temperature ( )< ChrgRecTemp =
AND
Current ( ) = < 0
Temperature ( )
< HighTempAlarm
Primary Method:
All V
OR
Current ( ) > 0
Secondary Method:
All V
OR
Current ( ) > 0
RemainingCapacity ( )
> RemainingCapacityAlarm ( )
AverageTimeToEmpty ( )
> RemainingTimeAlarm ( )
RelativeStateOfCharge ( )
> ClearFullyDischarged
(default RSOC=20%)
CELL
CELL
CELL
CELL
 2003 Microchip Technology Inc.
x < TCAVolt
x < TCAVolt
x > VEOD1
x > VEOD2
Clear Condition