参数资料
型号: DS2782E+
厂商: Maxim Integrated Products
文件页数: 11/28页
文件大小: 0K
描述: IC FUEL GAUGE BATT 8TSSOP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 100
功能: 燃料,电量检测计/监控器
电池化学: 锂离子(Li-Ion)、锂聚合物(Li-Pol)
电源电压: 2.5 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 8-TSSOP
包装: 管件
产品目录页面: 1436 (CN2011-ZH PDF)
DS2782
Figure 9. Fractional/Low Accumulated Current Register Format, ACRL
ACRL
MSB—Address 12h
LSB—Address 13h
Read Only
2 11
2 10
2 9
2 8
2 7
2 6
2 5
2 4
2 3
2 2
2 1
2 0
X
X
X
X
MSb
“X”: reserved
LSb
MSb
LSb
Units:1.526nVHr/R SNS
ACR LSb
VSS -
VSNS
6.25 ? Vh
20m ?
312.5 ? Ah
15m ?
416.7 ? Ah
R SNS
10m ?
625 ? Ah
5m ?
1.250mAh
ACR RANGE
VSS -
R SNS
VSNS
409.6mVh
20m ?
20.48Ah
15m ?
27.30Ah
10m ?
40.96Ah
5m ?
81.92Ah
ACCUMULATION BIAS
The Accumulation Bias register (AB) allows an arbitrary bias to be introduced into the current-accumulation
process. The AB can be used to account for currents that do not flow through the sense resistor, estimate currents
too small to measure, estimate battery self-discharge or correct for static offset of the individual DS2782 device.
The AB register allows a user programmed constant positive or negative polarity bias to be included in the current
accumulation process. The user-programmed two’s complement value, with bit weighting the same as the current
register, is added to the ACR once per current conversion cycle. The AB value is loaded on power-up from
EEPROM memory. The format of the AB register is shown in Figure 10.
Figure 10. Accumulation Bias Register Formats
AB
Address 61h
EE
S
2 6
2 5
2 4
2 3
2 2
2 1
2 0
MSb
LSb
“S”: sign bit
Units:
11 of 28
1.5625 ? V/Rsns
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