WCS2702数据手册

WCS2702Winsonreservestherighttomakechangestoimprovereliabilityormanufacturability.©Winson,2013/3/29HallEffectBaseLinearCurrentSensorFeatures:zLownoiseanalogsignalpathz98mΩinternalconductorresistancezOutputvoltageproportionaltoACandDCcurrentzMin.sensingcurrent0~2.0Aat5VvoltagesupplyzHighSensitivity1mV/mAzWideoperatingvoltagerange3.0~12V.zLowoperatingcurrent3mAzNearlyzeromagnetichysteresis.zRatiometricoutputfromsupplyvoltagez10KHzbandwidthFunctionalDescription:TheWinsonWCS2702provideseconomicalandprecisesolutionforbothDCandACcurrentsensinginindustrial,commercialandcommunicationssystems.Theuniquepackageallowsforeasyimplementationbythecustomer.Typicalapplicationsincludemotorcontrol,loaddetectionandmanagement,over-currentfaultdetectionandanyintelligentpowermanagementsystemetc…TheWCS2702consistsofaprecise,low-temperaturedriftlinearhallsensorICwithtemperaturecompensationcircuitandacurrentpathwith98mΩtypicalinternalconductorresistance.Thisextremelylowresistancecaneffectivelyreducepowerloss,operatingtemperatureandincreasethereliabilitygreatly.AppliedcurrentflowingthroughthisconductionpathgeneratesamagneticfieldwhichissensedbytheintegratedHallICandconvertedintoaproportionalvoltage.Theterminalsoftheconductivepathareelectricallyisolatedfromthesensorleads.ThisallowtheWCS2702currentsensortobeusedinapplicationsrequiringelectricalisolationwithouttheuseofopto-isolatorsorothercostlyisolationtechniquesandmakesystemmorecompetitiveincost.WCS2702Winsonreservestherighttomakechangestoimprovereliabilityormanufacturability.©Winson,2013/3/29FunctionBlock:WCS2702Winsonreservestherighttomakechangestoimprovereliabilityormanufacturability.©Winson,2013/3/29ElectricalCharacteristics:(T=+25˚C,Vdd=5.0V)CharacteristicSymbolTestConditionsMinTypMaxUnitsSupplyVoltageVcc─3.0─12VSupplyCurrentIsupplyIP=0A─3.56.0mAZeroCurrentVoutV0GIP=0A2.42.52.6VPrimaryConductorResistanceRprimaryIP=2A─98─mΩSensitivity△VoutIP=±2.0A0.851.01.15V/ABandwidthBW－10－kHzVdd=5V(DCcurrent)－±2.0－MeasurableCurrentRangeMCRVdd=5V(ACRMS)－1.4－ATemperatureDrift△VoutIp=0A－±0.5－mV/℃Alloutput-voltagemeasurementsaremadewithavoltmeterhavinganinputimpedanceofatleast100kΩCharacteristicDiagrams:WCS2702 Sensitivity standardization (30℃)  V.S  Temperature0.000.200.400.600.801.001.20數列10.8220.8810.9250.9590.9820.9951.0011.0000.9910.9740.9530.9290.9010.8680.8340.7920.752-40-30-20-100102030405060708090100110120℃WCS2702 Vout V.S IP(+)y = 0.1018x + 2.3711   Best linear equationsR² = 0.999 the goodness of fit of the trend line22.533.544.5500.10.20.30.40.50.60.70.80.911.11.21.31.41.51.61.71.81.92(A)VWCS2702©Winson,2013/3/29Winsonreservestherighttomakechangestoimprovereliabilityormanufacturability.WCS2702 Vout V.S IP(‐)y = ‐0.0983x + 2.5923   Best linear equationsR² = 0.9996 the goodness of fit of the trend line00.511.522.5300.10.20.30.40.50.60.70.80.911.11.21.31.41.51.61.71.81.92(A)VWCS2702  Sensitivity V.S Supply Voltage00.20.40.60.811.21.43456789101112(V)(V/A)WCS2702  Sensitivity V.S Supply Voltage 3V~5V00.20.40.60.811.21.433.23.43.63.844.24.44.64.85(V)(V/A)WCS2702Winsonreservestherighttomakechangestoimprovereliabilityormanufacturability.©Winson,2013/3/29PackageInformation: