Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsPMICsPMIC - battery management Charge indicator Li-Ion SON 12 (2.5x4) Surface-mount

bq27510-G1

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.....................................................................................................................................................................................................SLUS927–APRIL2009

CAL_MODE:0x0040

Thiscommandinstructsthefuelgaugetoentercalibrationmode.Thiscommandisonlyavailablewhenthefuel

gaugeisUNSEALED.

RESET:0x0041

Thiscommandinstructsthefuelgaugetoperformafullreset.Thiscommandisonlyavailablewhenthefuel

gaugeisUNSEALED.

AtRate():0x02/0x03

TheAtRate()read-/write-wordfunctionisthefirsthalfofatwo-functioncommandsetusedtosettheAtRate

valueusedincalculationsmadebytheAtRateTimeToEmpty()function.TheAtRate()unitsareinmA.

TheAtRate()valueisasignedinteger,withnegativevaluesinterpretedasadischargecurrentvalue.The

AtRateTimeToEmpty()functionreturnsthepredictedoperatingtimeattheAtRatevalueofdischarge.The

defaultvalueforAtRate()iszeroandwillforceAtRate()toreturn65,535.BoththeAtRate()and

AtRateTimeToEmpty()commandsshouldonlybeusedinNORMALmode.

AtRateTimeToEmpty():0x04/0x05

Thisread-wordfunctionreturnsanunsignedintegervalueofthepredictedremainingoperatingtimeifthebattery

isdischargedattheAtRate()valueinminuteswitharangeof0to65,534.Avalueof65,535indicatesAtRate()

=0.ThefuelgaugeupdatesAtRateTimeToEmpty()within1safterthesystemsetstheAtRate()value.Thefuel

gaugeautomaticallyupdatesAtRateTimeToEmpty()basedontheAtRate()valueevery1s.BoththeAtRate()

andAtRateTimeToEmpty()commandsshouldonlybeusedinNORMALmode.

Temperature():0x06/0x07

Thisread-wordfunctionreturnsanunsignedintegervalueofthebatterytemperatureinunitsof0.1Kmeasured

bythefuelgauge.

Voltage():0x08/0x09

Thisread-wordfunctionreturnsanunsignedintegervalueofthemeasuredcell-packvoltageinmVwitharange

of0to6000mV.

Flags():0x0a/0x0b

Thisread-wordfunctionreturnsthecontentsofthegas-gaugestatusregister,depictingthecurrentoperating

status.

Table4.FlagsBitDefinitions

bit7bit6bit5bit4bit3bit2bit1bit0

HighByteOTCOTD––CHG_INHXCHGFCCHG

LowByte––OCV_GDWAIT_IDBAT_DETSOC1SOCFDSG

OTC=Over-Temperatureinchargeconditionisdetected.Truewhenset.

OTD=Over-Temperatureindischargeconditionisdetected.Truewhenset.

CHG_INH=ChargeInhibit:unabletobegincharging(tempoutsidetherange[ChargeInhibitTempLow,ChargeInhibitTempHigh]).

Truewhenset.

ChargeSuspendAlert(tempoutsidetherange[SuspendTemperatureLow,SuspendTemperatureHigh]).Truewhen

XCHG=

set.

FC=Full-chargedconditionreached.Truewhenset.

CHG=(Fast)chargingallowed.Truewhenset.

OCV_GD=GoodOCVmeasurementtaken.Truewhenset.

WAIT_ID=Waitingtoidentifyinsertedbattery.Truewhenset.

BAT_DET=Batterydetected.Truewhenset.

SOC1=State-of-Charge-Threshold1(SOC1Set)reached.Truewhenset.

SOCF=State-of-Charge-ThresholdFinal(SOCFSet%)reached.Truewhenset.

ProductFolderLink(s):bq27510-G1

Not Recommended For New Designs