參數(shù)資料
型號(hào)： bq2040
廠商： Benchmark Technology Group
英文描述： Gas Gauge IC With SMBus Interface(氣體Gauge芯片（帶SMBus 接口）)
中文描述： 氣體計(jì)IC，帶有SMBus接口（氣體計(jì)芯片（帶的SMBus接口））
文件頁(yè)數(shù)： 4/32頁(yè)
文件大?。?/td> 189K
代理商： BQ2040
4
bq2040
Parameter Name
Address
Description
Length
Units
EEPROM length
0x00
Number of EEPROM data locations
must = 0x64
EEPROM data integrity check byte, must = 0x5b
0x02/0x03 Sets RemainingTimeAlarm (0x02)
0x04/0x05 Sets RemainingCapacityAlarm (0x01)
0x06/0x07 Reserved for future use
0x08/0x09 Sets the initial charging current
0x0a/0x0b Sets ChargingVoltage (0x15)
0x0c/0x0d Initializes BatteryStatus (0x16)
0x0e/0x0f Initializes and stores CycleCount (0x17)
0x10/0x11 Sets DesignCapacity (0x18)
0x12/0x13 Sets DesignVoltage (0x19)
0x14/0x15 Programs SpecificationInfo (0x1a)
0x16/0x17 Programs ManufactureDate (0x1b)
0x18/0x19 Programs SerialNumber (0x1c)
0x1a/0x1b Sets ChargingCurrent (0x14)
0x1c/0x1d Sets the trickle current request
0x1e/0x1f Reserved must = 0x0000
0x20-0x2b Programs ManufacturerName (0x20)
0x2c/0x2d Sets the overload current threshold
0x2e
Sets the battery low amount
0x2f
Reserved for future use
0x30-0x37 Programs DeviceName (0x21)
0x38/0x39termination
0x3a/0x3b Sets the maximum amount of overcharge
0x3c
Reserved must = 0x00
0x3d
Locks commands outside of the SBS data set
0x3e
Initializes FLAGS1
0x3f
Initializes FLAGS2
0x40-0x45 Programs DeviceChemistry (0x22)
0x46/0x47 Sense resistor calibration value
0x48
Voltage calibration value
0x49
Temperature calibration value
Sets the maximum charge temperature and the
T
step for
T/
t termination
8 bits
NA
EEPROM check1
Remaining time alarm
Remaining capacity alarm
Reserved
Initial charging current
Charging voltage
Battery status
Cycle count
Design capacity
Design voltage
Specification information
Manufacture date
Serial number
Fast-charging current
Maintenance-charge current
Reserved
Manufacturer name
Current overload
Battery low %
Reserved
Device name
0x01
8 bits
16 bits
16 bits
16 bits
16 bits
16 bits
16 bits
16 bits
16 bits
16 bits
16 bits
16 bits
16 bits
16 bits
16 bits
16 bits
96 bits
16 bits
8 bits
8 bits
64 bits
NA
minutes
mAh
NA
mA
mV
NA
cycles
mAh
mV
NA
NA
NA
mA
mA
mAh
NA
mA
%
NA
NA
Li-Ion taper current
16 bits
mA
Maximum overcharge limit
Reserved
Access protect
FLAGS1
FLAGS2
Device chemistry
Current measurement gain
Battery voltage offset
Temperature offset
16 bits
8 bits
8 bits
8 bits
8 bits
48 bits
16 bits
8 bits
8 bits
NA
NA
NA
NA
NA
NA
NA
NA
NA
Maximum temperature and
T step
0x4a
8 bits
NA
Table 1. Configuration Memory Map
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