Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsPMICsPMIC - battery management Charge indicator Li-Ion, NiCd, NiMH SOIC 16 N Surface-mount

12

bq2040

Function Code Access Units Defaults

1

ManufacturerAccess 0x00 read/write - -

RemaningCapacityAlarm 0x01 read/write mAh E

2

RemainingTimeAlarm 0x02 read/write minutes E

2

BatteryMode 0x03 read/write bit flag -

AtRate 0x04 read/write mA -

AtRateTimeToFull 0x05 read minutes -

AtRateTimeToEmpty 0x06 read minutes -

AtRateOK 0x07 read Boolean -

Temperature 0x08 read 0.1°K 2930

Voltage 0x09 read mV E

2

Current 0x0a read mA 0

AverageCurrent 0x0b read mA 0

MaxError 0x0c read percent 100

RelativeStateOfCharge 0x0d read percent -

AbsoluteStateOfCharge 0x0e read percent -

RemainingCapacity 0x0f read mAh E

2

FullChargeCapacity 0x10 read mAh E

2

RunTimeToEmpty 0x11 read minutes -

AverageTimeToEmpty 0x12 read minutes -

AverageTimeToFull 0x13 read minutes -

ChargingCurrent 0x14 read mA E

2

ChargingVoltage 0x15 read mV E

2

Battery Status 0x16 read bit flags E

2

CycleCount 0x17 read cycle E

2

DesignCapacity 0x18 read mAh E

2

DesignVoltage 0x19 read mV E

2

SpecificationInfo 0x1a read - E

2

ManufactureDate 0x1b read - E

2

SerialNumber 0x1c read integer E

2

Reserved 0x1d - 0x1f - - -

ManufacturerName 0x20 read string E

2

DeviceName 0x21 read string E

2

Note: 1. Defaults after reset or power-up.

Table 4. bq2040 Register Functions