参数资料
型号: DS2790E+
厂商: Maxim Integrated Products
文件页数: 33/41页
文件大小: 0K
描述: IC FUEL GAUGE BATT 28TSSOP
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)
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: 28-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 28-TSSOP
包装: 管件
DS2790 Programmable 1-Cell Li-Ion Fuel Gauge and Protector
Figure 16. Temperature Register Format
Word Address 6005h
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
Units: 2 = 0.125 ° C
MSb
“S”: sign bit
0
LSb
ADC Configuration Register
The ADC Configuration register located at word address 600Ah controls current measurement bias and offset
blanking as well as current fault limits for the protector circuitry. ADC Configuration register bits are read and write
accessable by application code. COCT, DOCT, and SCDT bit functionality is described under Lithium-Ion
Protection.
Figure 17. ADC Configuration Register Format
ADDRESS
600AH
BIT DEFINITION
Field
Bit
Format
Allowable Values
Accumulation Register Bias
IBIAS
15:8
R/W
8-bit 2’s complement value that is added to the ACR on every
update.
Charge Overcurrent Threshold ? See Lithium-Ion Protection. See
COCT
DOCT
SCDT
7:6
5:4
3
R/W
R/W
R/W
V OC in the specification table for limit tolerances.
0 0 = 16mV V OC
0 1 = 32mV V OC
1 0 = 48mV V OC
1 1 = 64mV V OC
Discharge Overcurrent and Short Circuit Thresholds ? See
Lithium-Ion Protection. See V OC and V SC in the specification table
for limit tolerances.
0 0 = 16mV V OC , 100mV V SC
0 1 = 32mV V OC , 140mV V SC
1 0 = 48mV V OC , 180mV V SC
1 1 = 64mV V OC , 220mV V SC
Short Circuit Delay Time ? See Lithium-Ion Protection. See t SCD in
the specification table for limit tolerances.
0 = 250μs
1 = 2.0ms
Reserved
2:1
Read Only
Undefined
Offset Blanking Enable
OBEN
0
R/W
0 = All current measurements accumulated into the ACR.
1 = Positive current measurements less than 62.5μV/R SNS not
accumulated into the ACR.
33 of 41
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