參數(shù)資料
型號(hào)： bq2040
廠商： Benchmark Technology Group
英文描述： Gas Gauge IC With SMBus Interface(氣體Gauge芯片（帶SMBus 接口）)
中文描述： 氣體計(jì)IC，帶有SMBus接口（氣體計(jì)芯片（帶的SMBus接口））
文件頁數(shù)： 15/32頁
文件大?。?/td> 189K
代理商： BQ2040
Accuracy:
±
1% of the DesignCapacity after cali-
bration
MaxError() (0x0c)
Returns the expected margin of error (%) in the state of
charge calculation.
Output: unsigned integer. Returns the percent un-
certainty for selected information.
Units: %
Range: 0 to 100%
RelativeStateOfCharge() (0x0d)
This read-only word returns the predicted remaining
battery capacity expressed as a percentage of FullChar-
geCapacity (%).
RelativeStateOfCharge is only
valid for battery capacities more than 1504mAh
and less than 10,400mAh.
Output: unsigned integer. Returns the percent of re-
mainingcapacity.
Units: %
Range: 0 to 100%
Granularity: 1%
Accuracy:
±
MaxError after circuit and capacity
calibration
AbsoluteStateOfCharge() (0x0e)
This read-only word returns the predicted remaining
battery capacity expressed as a percentage of DesignCa-
pacity (%). Note that AbsoluteStateOfCharge can return
values greater than 100%.
Absolute StateOfCharge
is only valid for battery capacities more than
1504mAh and less than 10,400mAh
.
Output: unsigned integer. Returns the percent of
remaining capacity.
Units: %
Range: 0 to 65,535%
Granularity: 1%
Accuracy:
±
MaxError after circuit and capacity
calibration
RemainingCapacity() (0x0f)
This read-only word returns the predicted remaining
battery capacity.
The RemainingCapacity value is ex-
pressed in mAh.
Output: unsigned integer. Returns the estimated re-
mainingcapacityinmAh.
Units: mAh
Range: 0 to 65,535mAh
Granularity: 0.2% of DesignCapacity or better
Accuracy:
±
MaxError
FCC after circuit and ca-
pacity calibration
FullChargeCapacity() (0x10)
This read-only word returns the predicted pack capacity
when it is fully charged. FullChargeCapacity defaults
to the value programmed in the external EEPROM until
a new pack capacity is learned. The new FCC is stored
to EEPROM within 400ms of a valid charge after a
qualified discharge.
Output: unsigned integer. Returns the estimated full
chargecapacityinmAh.
Units: mAh
Range: 0 to 65,535mAh
Granularity: 0.2% of DesignCapacity or better
Accuracy:
±
MaxError
FCC after circuit and ca-
pacity calibration
RunTimeToEmpty() (0x11)
This read-only word returns the predicted remaining
battery life at the present rate of discharge (minutes).
The RunTimeToEmpty value is calculated based on
Current.
Output: unsigned integer. Returns the minutes of
operationleft.
Units: minutes
Range: 0 to 65,534min
Granularity: 2min or better
Invalid data indication: 65,535 indicates battery is
not being discharged.
AverageTimeToEmpty() (0x12)
This read-only word returns the predicted remaining
battery life at the present average discharge rate (min-
utes). The AverageTimeToEmpty is calculated based on
AverageCurrent.
15
bq2040
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參數(shù)描述
BQ2040EVM-001 功能描述:電源管理IC開發(fā)工具 Eval Kit for NiMH 10.8V RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
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BQ2040SN 制造商:Texas Instruments 功能描述:BATTERY CHARGE MONITOR SMD 2040
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BQ2040SN-C408 制造商:Texas Instruments 功能描述:Battery Management IC
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