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參數(shù)資料
| 型號： | BQ2083 |
| 英文描述： | Silicon Bridge Rectifiers |
| 中文描述： | 銀紫荊星章符合電量監(jiān)測計芯片的使用與BQ29311 |
| 文件頁數(shù)： | 16/54頁 |
| 文件大?。?/td> | 461K |
| 代理商： | BQ2083 |
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SLUS573 JULY 2003
www.ti.com
16
when it no longer detects that the battery is being charged or it no longer detects the termination condition. See
Table 6 for a summary of BatteryStatus( ) alarm and status bit operation.
Table 6. Alarm and Status Bit Summary
BATTERY STATE
CONDITIONS
CC( ) CURRENT AND STA-
TUS BITS SET
STATUS CLEAR CONDITION
Overcurrent
C( )
≥
CC( ) +
Overcurrent Margin
AC( )
≥
Fast-Charging Current
+
Overcurrent Margin
CC( ) = 0, TCA = 1
C( ) <
Overcurrent Margin
Prolonged
Overcurrent
CVOV = 1
CC( ) = 0, TCA = 1
AC( ) < 256 mA
Overload
AC( )
≤
Overload Current
CVUV = 1
AC( ) < –256 mA
V( )
≥
CV( ) +
Over Voltage Margin
VCELL1, 2, 3, or 4
≥
Cell Over Voltage
TCA = 1
DISCHARGING = 1
Overvoltage
CC( ) = 0, CVOV = 1
V( ) < CV( ) +
Over Voltage Margin
VCELL(all)
≤
Cell Over Voltage Reset
T( )
≤
Max Temperature
Temperature
Hysteresis
or T( )
≤
43
°
C
RSOC( )
<
Fully Charged Clear %
DISCHARGING = 1, and 2 mAh of
discharge is measured
Overtemperature
T( )
≥
Max Temperature
CC( ) = 0, OTA = 1,
TCA = 1, CVOV = 1
Capacity added after RM( ) = FCC( )
≥
Maximum Overcharge
CC( ) = 0, FC = 1
Overcharge
OCA = 1, TCA = 1
Undertemperature
T( ) < 0
°
C
0
°
C
≤
T( ) < LTF
CC( ) = 0
0
°
C
≤
T( )
T( )
≥
LTF + DF 0x44 (default = 3
°
C)
CC( ) = Precharge
Primary Charge
Termination
Current taper
FC = 1, TCA = 1
CC( ) = Maintenance
Charging Current
RSOC( ) <
Fully Charged Clear%
Fully Discharged
RM( ) <
Battery Low %
and
DISCHARGING = 1
FD = 1
RSOC( )
≥
20%
Overdischarged
RM( ) = 0
V( )
≤
Terminate Voltage
TDA = 1
V( ) >
Terminate Voltage
and RM( ) > 0
VCELL1, 2, 3 or 4
≤
Cell Under Voltage
TDA = 1, CVUV = 1
V( ) >
Terminate Voltage
VCELL(all)
≥
Cell Under Voltage Reset
RM( )
≥
RCA( )
ATTE( )
≥
RTA( )
Low Capacity
RM( ) < RCA( )
RCA = 1
Low Run Time
NOTE:AC( ) = AverageCurrent(), 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( ). LTF = Low Temperature Fault threshold
FCC( ) = Full Charge Capacity
ATTE( ) < RTA( )
RTA = 1
Cell Balancing
The bq2083V1P2 balances the cells during charge by discharging those cells above the threshold set in
Cell
Balance Threshold
DF 0xd70xd8, if the maximum difference in cell voltages exceeds the value programmed in
Cell
Balance Min
DF 0xdb. For cell balancing, the bq2083V1P2 measures the cell voltages at an interval set in
Cell
Balance Interval
DF 0xdc. On the basis of the cell voltages, the bq2083V1P2 either selects the appropriate cell to
discharge or adjusts the cell balance threshold up by the value programmed in
Cell Balance Window
0xd90xda when
all cells exceed the cell balance threshold or the highest cell exceeds the cell balance threshold by the cell balance
window.
The cell balance threshold is reset to the value in
Cell Balance Threshold
at the start of every charge cycle. The
threshold can be adjusted no more than once during a balance interval.
DISPLAY PORT
General
The display port drives a 3-, 4-, or 5-LED bar-graph display. The display is activated by a logic signal on the DISP
input. The bq2083V1P2 can display RM in either a relative or absolute mode with each LED representing a
percentage of the full-battery reference. In relative mode, the bq2083V1P2 uses FCC as the full-battery reference;
in absolute mode, it uses Design Capacity (DC).
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| BQ20832DBT | 制造商:Texas Instruments 功能描述: |
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| BQ2083DBT | 功能描述:電池管理 SBS-Cmplnt Gas Gauge for Use w/BQ29311 RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| BQ2083DBTG4 | 功能描述:電池管理 SBS-Cmplnt Gas Gauge for Use w/BQ29311 RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| BQ2083DBTR | 功能描述:電池管理 SBS-Cmplnt Gas Gauge for Use w/BQ29311 RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
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