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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)： | 17/32頁 |
| 文件大?。?/td> | 189K |
| 代理商： | BQ2040 |
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Range: 0 to 65,535 cycles; 65,535 indicates battery
hasexperienced65,535ormorecycles.
Granularity: 1 cycle
DesignCapacity() (0x18)
This read-only word returns the theoretical capacity of a
new pack.
The DesignCapacity value is expressed in
mAh at the nominal discharge rate.
Output: unsigned integer. Returns the battery ca-
pacity in mAh.
Units: mAh
Range: 0 to 65,535mAh
DesignVoltage() (0x19)
This read-only word returns the theoretical voltage of
a new pack in mV.
Output: unsigned integer. Returns the battery's
normal terminal voltage in mV.
Units: mV
Range: 0 to 65,535mV
SpecificationInfo() (0x1a)
This read-only word returns the specification re-
vision the bq2040 supports.
ManufactureDate() (0x1b)
This read-only word returns the date the cell was manu-
factured in a packed integer word. The date is packed
as follows:(year - 1980)
512 + month
32 + day.
SerialNumber() (0x1c)
This read-only word returns a serial number.
number, when combined with the ManufacturerName,
the DeviceName, and the ManufactureDate, uniquely
identifies the battery.
This
Output: unsigned integer
ManufacturerName() (0x20)
This read-only string returns a character string where the
first byte is the number of characters available. The maxi-
mum number of characters is 11. The character string con-
tains the battery manufacturer's name.
“Benchmarq” identifies the battery pack manufacturer as
Benchmarq.
For example,
Output: string or ASCII character string
DeviceName() (0x21)
This read-only string returns a character string where the
first byte is the number of characters available. The maxi-
mum number of characters is 7. The 7-byte character string
contains the battery's name. For example, a DeviceName of
“bq2040”indicatesthatthebatteryisamodelbq2040.
Output: string or ASCII character string
DeviceChemistry() (0x22)
This read-only string returns a character string where
the first byte is the number of characters available. The
maximum number of characters is 5. The 5-byte charac-
ter string contains the battery's chemistry. For example,
if the DeviceChemistry function returns “NiMH,” the
battery pack contains nickel-metal hydride cells.
Output: string or ASCII character string
ManufacturerData() (0x23)
This read-only string allows access to an up to 5-byte
manufacturer data string.
Output:
signed by the Smart Battery's manufacturer.
block data—data whose meaning is as-
17
bq2040
(MSB) 7
6
5
4
3
2
1
0 (LSB)
FLAGS2
DMODE
PSTAT
CHM
CC
-
OV
LTF
OC
FLAGS1
T/
t
I
MIN
VQ
-
VDQ
OVLD
EDV1
EDVF
Note:
- = Reserved
Table 6. Bit Descriptions for FLAGS1 and FLAGS2
Field
Bits
Used
Format
Allowable Value
Day
0–4
5-bit binary
value
4-bit binary
value
7-bit binary
value
1–31 (corresponds to
date)
1–12 (corresponds to
month number)
0–127 (corresponds to
year biased by 1980)
Month
5–8
Year
9–15
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相關(guān)代理商/技術(shù)參數(shù) |
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 |
| BQ2040SN | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Gas Gauge IC With SMBus Interface |
| BQ2040SN | 制造商:Texas Instruments 功能描述:BATTERY CHARGE MONITOR SMD 2040 |
| BQ2040SN-C408 | 功能描述:電池管理 Multi-Chemistry SBS 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 |
| BQ2040SN-C408 | 制造商:Texas Instruments 功能描述:Battery Management IC |
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