BQ2040 Datasheet, PDF (5/33 Pages) Texas Instruments – Gas Gauge IC With SMBus Interface

bq2040
Table 1. Configuration Memory Map (Continued)
Parameter Name
Charge efficiency
Full charge percentage
Digitial filter
Current integration gain
Self-discharge rate
Manufacturer data
Voltage gain1
Reserved
EDVF charging current
End of discharge voltage1
End of discharge voltage final
Full-charge capacity
∆t step
Hold-off time
EEPROM check 2
Reserved
Address
Description
0x4b Sets the high/low charge rate efficiencies
0x4c
Sets the percent at which the battery is consid-
ered fully charged
0x4d Sets the minimum charge/discharge threshold
0x4e
Programs the current integration gain to the
sense resistor value
0x4f Sets the battery’s self-discharge rate
0x50-0x55 Programs ManufacturerData (0x23)
0x56/0x57 Battery divider calibration value
0x58-0x59 Reserved
0x5a/0x5b
Sets the charge current request when the battery
voltage is less than EDVF
0x5c/0x5d Sets EDV1
0x5e/0x5f Sets EDVF
0x60/0x61 Initializes and stores FullChargeCapacity (0x10)
0x62 Sets the ∆t step for ∆T/∆t termination
0x63 Sets ∆T/∆t hold-off timer
0x64
EEPROM data integrity check byte
must = 0xb5
0x65-0x7f Reserved for future use
Length
8 bits
8 bits
8 bits
8 bits
8 bits
48 bits
16 bits
16 bits
16 bits
16 bits
16 bits
16 bits
8 bits
8 bits
8 bits
Units
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
mAh
NA
NA
NA
NA
5