參數(shù)資料
型號(hào)： DS2760X
英文描述： High Precision Li-Ion Battery Monitor
中文描述： 高精度鋰離子電池監(jiān)視器
文件頁(yè)數(shù)： 9/25頁(yè)
文件大小： 126K
代理商： DS2760X
DS2760
9 of 25
When the internal sense resistor is used, the DS2760 maintains the Current Accumulator in units of Amp-
hours, with a resolution of 0.25 mAhrs and full scale range of
±
8.2 Ahrs. When using an external sense
resistor, the DS2760 maintains the Current Accumulator in units of Volt-hours, with a resolution of
6.25
μ
Vhrs and a full scale range of
±
205 mVhrs.
The Current Accumulator is a read/write register that can be altered by the host system as needed.
CURRENT ACCUMULATOR FORMAT –
Figure 5
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: 0.25 mAhrs for internal sense resistor
6.25
μ
Vhrs for external sense resistor
CURRENT OFFSET COMPENSATION
CURRENT MEASUREMENT and the CURRENT ACCUMULATION are both internally compensated
for offset on a continual basis minimizing error resulting from variations in device temperature and
voltage. Additionally a constant bias may be utilized to alter any other sources of offset. This bias resides
in EEPROM address 33h in two’s-complement format and is subtracted from each current measurement.
CURRENT OFFSET BIAS –
Figure 6
Address 33
S
2
6
2
5
2
4
2
3
2
2
2
1
2
0
MSb
LSb
Units: 0.625 mA for internal sense resistor
15.625
μ
V for external sense resistor
VOLTAGE MEASUREMENT
The DS2760 continually measures the voltage between pins VIN and VSS over a range of 0 to 5-volts.
The resulting data is placed in the Voltage Register in two’s-complement format with a resolution of
4.88 mV. Voltages above the maximum register value are reported as the maximum value. The Voltage
Register format is shown in Figure 7.
VOLTAGE REGISTER FORMAT –
Figure 7
MSB—Address 0C
LSB—Address 0D
S
2
9
2
8
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
X
X
X
X
X
MSb
LSb
MSb
LSb
Units: 4.88 mV
相關(guān)PDF資料
PDF描述
DS2760XA High Precision Li-Ion Battery Monitor
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS2760X-025 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:High Precision Li-Ion Battery Monitor
DS2760XA 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:High Precision Li-Ion Battery Monitor
DS2760XA-025 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:High Precision Li-Ion Battery Monitor
DS2761 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:High-Precision Li+ Battery Monitor
DS2761AE 功能描述:IC MON BATT LI-ION HP 16-TSSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 功能:充電管理 電池化學(xué):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(yīng)商設(shè)備封裝:SOT-23-5 包裝:剪切帶 (CT) 產(chǎn)品目錄頁(yè)面:669 (CN2011-ZH PDF) 其它名稱:MCP73831T-2ACI/OTCT
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