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參數(shù)資料
| 型號(hào)： | bq2945 |
| 廠商： | Benchmark Technology Group |
| 英文描述： | Gas Gauge IC with SMBus Interface(Gas Gauge芯片（帶SMBus 接口）) |
| 中文描述： | 氣體計(jì)IC，帶有SMBus接口（電量監(jiān)測(cè)計(jì)芯片（帶的SMBus接口）） |
| 文件頁數(shù)： | 15/32頁 |
| 文件大?。?/td> | 256K |
| 代理商： | BQ2945 |
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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.
Output: unsigned integer. Returns the minutes of
operation left.
Units: minutes
Range: 0 to 65,534min
Granularity: 2min or better
Invalid data indication: 65,535 indicates battery
is not being discharged.
15
bq2945
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| BQ294502 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Overvoltage Protection for 2-Series and 3-Series Cell Li-Ion Batteries |
| BQ294502DRVR | 功能描述:電池管理 Overvltg Prot Device 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 |
| BQ294502DRVT | 功能描述:電池管理 Overvltg Prot Device 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 |
| BQ294502EVM-033 | 功能描述:電源管理IC開發(fā)工具 bq294502 Eval Mod 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 |
| BQ294504 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Overvoltage Protection for 2-Series and 3-Series Cell Li-Ion Batteries |
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