- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄379183 > DS2770AE Battery Monitor and Charge Controller PDF資料下載
參數(shù)資料
| 型號： | DS2770AE |
| 英文描述： | Battery Monitor and Charge Controller |
| 中文描述： | 電池充電控制器監(jiān)控 |
| 文件頁數(shù)： | 10/27頁 |
| 文件大?。?/td> | 272K |
| 代理商： | DS2770AE |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁當前第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁
DS2770
10 of 27
CURRENT REGISTER FORMAT
Figure 5
MSB—Address 0E
LSB—Address 0F
S
2
14
2
13
2
12
2
11
2
10
2
9
2
8
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
MSb
LSb
MSb
LSb
Units: 62.5 Ah for internal sense resistor
1.56 Vh for external sense resistor
CURRENT ACCUMULATORS
The current accumulator facilitates remaining capacity estimation by tracking the net current flow into
and out of the battery. Current flow into the battery increments the current accumulator while current
flow out of the battery decrements it. Data is maintained in the current accumulator in two’s complement
format and updated every 3.52s. Figure 6 the format of the current accumulator.
When the internal sense resistor is used, the DS2770 maintains the current accumulator in units of amp-
hours, with a resolution of 250 A and full-scale range of 8.19Ah. When using an external sense resistor,
the DS2770 maintains the current accumulator in units of volt-hours, with a resolution of 6.25 Vh and a
full-scale range of 205mVh.
ACCUMULATED CURRENT REGISTER FORMAT
Figure 6
MSB—Address 10
LSB—Address 11
S
2
14
2
13
2
12
2
11
2
10
2
9
2
8
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
MSb
LSb
MSb
LSb
Units: 0.25mAh for internal sense resistor
6.25 Vh for external sense resistor
CURRENT OFFSET COMPENSATION
Current measurement and consequently the current accumulation are internally compensated for offset on
a continual basis to minimize errors from variations in device temperature and supply voltage. Offset
compensation is corrected to ±1LSB at least once per hour. Additionally, the Current Offset Bias Register
provides a user-programmable constant bias value that may be used to correct for errors due to circuit
layout or topology that result in current measurement or current accumulation errors. It can also be used
to arbitrarily apply a constant bias to force the current measurement to be pessimistic, or correct for room
temperature self-discharge. The current offset bias value is stored in EEPROM addresses 32h and 33h in
two’s complement format. The stored value is subtracted from each current measurement; therefore,
positive values (0001h to 7fffh) bias the current measurement and current accumulation in the discharge
direction. Figure 7 shows the format of the Current Offset Bias Register.
相關PDF資料 |
PDF描述 |
|---|---|
| DS2770AE-025 | Battery Monitor and Charge Controller |
| DS2770BE | Battery Monitor and Charge Controller |
| DS28E04-100 | 4096-Bit Addressable 1-Wire EEPROM with PIO |
| DS28E04S-100 | 4096-Bit Addressable 1-Wire EEPROM with PIO |
| DS3151 | Single/Dual/Triple/Quad DS3/E3/STS-1 LIUs |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| DS2770AE/R | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Battery Monitor and Charge Controller |
| DS2770AE/T | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Battery Monitor and Charge Controller |
| DS2770AE/T&R | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Battery Monitor and Charge Controller |
| DS2770AE/TR | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
| DS2770AE+ | 功能描述:IC BATTERY MONITOR 16-TSSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標準包裝:1 系列:- 功能:充電管理 電池化學:鋰離子（Li-Ion）、鋰聚合物（Li-Pol） 電源電壓:3.75 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應商設備封裝:SOT-23-5 包裝:剪切帶 (CT) 產(chǎn)品目錄頁面:669 (CN2011-ZH PDF) 其它名稱:MCP73831T-2ACI/OTCT |
發(fā)布緊急采購，3分鐘左右您將得到回復。