参数资料
型号: DS2781E+
厂商: Maxim Integrated Products
文件页数: 20/31页
文件大小: 0K
描述: IC FUEL GAUGE BATT 8TSSOP
产品培训模块: 1-Wire Communications
Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 1
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 ~ 10 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)
DS2781
CONTROL REGISTER
All CONTROL register bits are read and write accessible. The CONTROL register is recalled from Parameter
EEPROM memory at power-up. Register bit values can be modified in shadow RAM after power-up. Shadow RAM
values can be saved as the power up default values by using the Copy Data command.
Figure 19. Control Register Format
ADDRESS
60h
BIT DEFINITION
FIELD
BIT
FORMAT
ALLOWABLE VALUES
Negative Blanking Enable
NBEN
7
Read/Write
0: Allows negative current readings to always be accumulated
1: Enables blanking of negative current readings up to -25μV
Under Voltage SLEEP Enable
UVEN
6
Read/Write
0: Disables transition to SLEEP mode based on V IN voltage
1: Enables transition to SLEEP mode if,
V IN < V SLEEP AND DQ stable at either logic level for t SLEEP
Power Mode Enable
PMOD
5
Read/Write
0: Disables transition to SLEEP mode based on DQ logic state
1: Enables transition to SLEEP mode if DQ at a logic-low for t SLEEP
Read Net Address Opcode
RNAOP
4
Read/Write
0: Read Net Address Command = 33h
1: Read Net Address Command = 39h
Under Voltage Threshold Select
UVTH
3
Read/Write
0: Selects an Under Voltage Sleep threshold of 2.45V
1: Selects an Under Voltage Sleep threshold of 4.9V
Reserved
0:2
Undefined
SPECIAL FEATURE REGISTER
All Special Feature Register bits are read and write accessible, with default values specified in each bit definition.
Figure 20. Special Feature Register Format
ADDRESS
15h
BIT DEFINITION
FIELD
Reserved
BIT
1:7
FORMAT
Undefined
ALLOWABLE VALUES
PIO Sense and Control
Read values
0: PIO pin ≤ Vil
1: PIO pin ≥ Vih
PIOSC
0
Read/Write
Write values
0: Activates PIO pin open-drain output driver, forcing the PIO pin low
1: Disables the output driver, allowing the PIO pin to be pulled high or
used as an input
Power-up and SLEEP mode default: 1 (PIO pin is hi-Z)
Note: PIO pin has weak pulldown
20 of 31
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