1.2mV Accurate, Noise Immune Battery Stack Monitor

Info & Free Samples

www.linear.com/product/LTC6804

1-800-4-LINEAR

Measurement Error (mV)when Measuring a 3.3V Cell

Features

•TotalMeasurementError<1.2mV

•LongTermStabilityAssuredwith Laboratory-GradeVoltageReference

•isoSPI,Isolated2-Wire Interconnectionupto100Meters

•290μstoMeasureAllCells

•PassiveCellBalancing

•4μASleepModeSupplyCurrent

•AEC-Q100

•EngineeredforISO26262Compliance

Maximize Battery Pack Safety, Life, Capacity & Driving Range

, LT, LTC, LTM, Linear Technology and the Linear logo areregistered trademarks and isoSPI is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners.

video.linear.com/139

Initial 25°CAccuracy

After PCBoard

Assembly

After 10Years of

Operation

10

8

6

4

2

0

LTC6804Using BuriedZener Technology

CompetitorsUsing BandgapTechnology

Safelyextractthepotentialoflargebatterypacksviaprecisemonitoringofeverycell.TheLTC®6804BatteryMonitormeasurescellvoltagewithlessthan0.04%error,guaranteed.Measurementstabilityovertime,temperatureandoperatingconditionsisachievedwithaburiedZenervoltagereference,similartothoseinprecisioninstrumentation.Aprogrammable3rdordernoisefilterkeepsnoisefromcorruptingcellmeasurements,anda2-wireisoSPITMinterfaceprovidesacost-effective,noiseimmune,100meterinterconnectionformultipleLTC6804s.