Texas Instruments BQ2028 Handleiding

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HDQ

VDD

REGIN

VSS

2.5-V

LDO

HDQ and control

Internal

temperature

sensor

512 x 8b

EEPROM

bq2028

bq2028

www.ti.com

SLUSB22B–OCTOBER2012–REVISEDNOVEMBER2012

4KbEEPROMwithSingle-WireHDQInterfaceandTemperatureSensor

CheckforSamples:bq2028

1

FEATURES

DESCRIPTION

TheTexasInstrumentsbq2028serial4Kbnonvolatile

•SerialNon-VolatileMemory(NVM)

memory(EEPROM)withintegratedtemperature

–512Byte(4Kb)EEPROM

sensorandLDOlinearregulatorprovidespack-side

–ProvidesBatteryPackNVMstoragefor

memorystorageandtemperaturemonitoringfora

bq27505-E1FuelGauge:

single-cellsystem-sidebatteryfuelgaugesolution

suchasthebq27505-E1.

–ManufacturingData

Thebq2028communicateswiththebq27505-E1

–OperationalHistory

gaugeoverasingle-wireHDQinterfacewitha

–ResistanceTables

minimaloverheadprotocolyetensureserrorfreedata

–StateofHealthInformation

transfer.

•SingleWireHDQCommunicationsPort

•Integrated2.5VLDOLinearRegulator

–Ultra-lowpower“shutdown”mode(1µA

Typical)viaauto-timeoutand/orhost

command

–WakeupfromshutdownviaHDQbreak

•InternalDie-TemperatureSensor

–±5°CRange=–40°Cto85°C

–RawADtoTemperatureConversion

PerformedbyHostFirmware

•Package

–12-pin,1490×2350µmWCSP(YZG),

0.625mmMaxThickness,0.5mmPitch

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Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsof

TexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.

PRODUCTIONDATAinformationiscurrentasofpublicationdate.

Copyright©2012,TexasInstrumentsIncorporated

ProductsconformtospecificationsperthetermsoftheTexas

Instrumentsstandardwarranty.Productionprocessingdoesnot

necessarilyincludetestingofallparameters.

Product specificaties