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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)測計(jì)芯片（帶的SMBus接口）） |
| 文件頁數(shù)： | 17/32頁 |
| 文件大?。?/td> | 256K |
| 代理商： | BQ2945 |
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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
Specification Info() (0x1a)
This read-only word returns the specification re-
vision the bq2945 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.
“Unitrode” identifies the battery pack manufacturer as
Unitrode.
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
“bq2945”indicatesthatthebatteryisamodelbq2945.
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-
End of Discharge Voltage1 (0x3e)
This read-only word returns the first end-of-discharge
voltage programmed for the pack.
Output:
Returns battery end-of-discharge voltage pro-
grammed in EEPROM in mV.
two’s complemented unsigned integer.
17
bq2945
(MSB) 7
6
5
4
3
2
1
0 (LSB)
FLAGS2
DMODE
CP2 DI
CHM
CC
-
OV
LTF
OC
FLAGS1
-
-
VQ
-
VDQ
SEDV
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
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
7-bit binary
value
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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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