BQ2060SS Datasheet, PDF (16/59 Pages) Texas Instruments – SBS V1.1-COMPLIANT GAS GAUGE IC

bq2060
SLUS035E – JANUARY 2000 – REVISED OCTOBER 2005
www.ti.com
Table 6. Alarm and Status Bit Summary⁽¹⁾
BATTERY STATE
Overcurrent
Overvoltage
Over temperature
Overcharge
Under temperature
CONDITIONS
C() ≥ CC() +
Overcurrent Margin
V() ≥ CV() + Overvoltage Margin
VCELL1, 2, 3, or 4 > Cell Over
Voltage
CC() STATE AND
BatteryStatus BITS SET
CC() = 0, TCA = 1
TCA = 1
CC() = 0, CVOV = 1
T() ≥Max T
Capacity added after RM() = FCC()
≥
Maximum Overcharge
T() < 0°C
CC() = 0, OTA= 1,
TCA = 1, CVOV = 1
CC() = 0, FC = 1
OCA = 1, TCA = 1
CC() = 0
Fast charge termination
∆T/∆t or Current Taper
CC() = Maintenance
Charging Current,
FC = 1
TCA = 1
Fully discharged
Overdischarged
Low capacity
Low run-time
V() ≤ EDV2
V() ≤ EDV0
VCELL1, 2, 3 or 4 < Cell Under
Voltage
RM() < RCA()
ATTE() < RTA()
FD = 1
TDA = 1
TDA = 1, CVUV = 1
RCA = 1
RTA = 1
CC() = FAST OR PRE-CHARGE CURRENT
AND/OR BITS CLEARED
C() < CC() + Overcurrent Margin
DISCHARGING = 1
V() < CV() + Overvoltage Margin
Li-ion cell voltage ≤Cell Over Voltage
T() ≤Max T - 5°C or T() ≤ 43°C
RSOC() < Fully Charged Cleared %
DISCHARGING = 1
0°C ≤ T() < 5°C, CC() = Pre-Charge Current
T() ≥ 5°C, CC() = Fast-Charging Current
RSOC() < Fully Charged Cleared %
DISCHARGING = 1 or termination condition is
no longer valid.
RSOC() > 20%
V() > EDV0
VCELL1, 2, 3, or 4 ≥Cell Under Voltage
RM() ≥ RCA()
ATTE() ≥ RTA()
(1) C() = Current(), CV() = ChargingVoltage(), CC() = ChargingCurrent(), V() = Voltage(), T() = Temperature(),
TCA = TERMINATE_CHARGE_ALARM, OTA = OVER_TEMPERATURE_ALARM,
OCA = OVER_CHARGED_ALARM, TDA = TERMINATE_DISCHARGE_ALARM, FC = FULLY_CHARGED,
FD = FULLY_DISCHARGED, RSOC() = RelativeStateOfCharge(). RM() = RemainingCapacity(),
RCA = REMAINING_CAPACITY_ALARM, RTA = REMAINING_TIME_ALARM,
ATTE() = AverageTimeToEmpty(), RTA() = RemainingTimeAlarm(), RCA() = RemainingCapacityAlarm(),
FCC() = FullChargeCapacity.
CONDITION
RELATIVE OR
ABSOLUTE
STATEOFCHARGE
()
EDV0 = 1
<20%
≥20%, <40%
≥40%, <60%
≥60%, <80%
≥80%
Table 7. DISPLAY MODE (5 LED)
5 LED DISPLAY OPTION
LED1
LED2
LED3
LED4
OFF
ON
ON
ON
ON
ON
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
LED5
OFF
OFF
OFF
OFF
OFF
ON
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