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NE8151

NE8151WirelessPowerTransmitter •Single-Chipupto15WsolutionorWirelessPowerConsortium(WPC)“Qi”compliantLow/MediumpowerTransmitter

　designA1/A5/A6/A11andsinglecoilB3/B4

•ConformstoWPCspecification1.1.2specifications

•Over-Temperature/Voltageprotection

•EmbeddedMCU,OTP,RAMandADC

•ForeignObjectDetection(FOD)

•ModulatesandDemodulatesWPC-CompliantMessagePacketstoandfromReceiver

Applications •WPC-CompliantWirelessChargersfor：

　-MobileandStartPhones

　-MP3Players

　-GlobalPositioningDevices

　-DigitalCameras •OtherWirelessPowerTransmittersin：

　-Carsandothervehicles

　-FurnitureBuilt-InWirelessChargers

　-ToyPowerSuppliesandChargers 

Description

TheNE8051isahighly-integratedsingle-chipWPC-compliantwirelesspowertransmitterICforpowertransmitterdesignA1/A5/A6/A11andsinglecoilB3/B4.Thedeviceoperateswiththeinputvoltagerangefrom5Vto19V,andsuppliesonesetofexternalfullbridgeorone/threesetsofexternalhalf-bridgeinvertersforDC/ACconversion.Itcontrolsthetransferredpowerbymodulatingtheswitchingfrequency,duty-cycleandphasespecifiedbytheWPCspecificationforA1/A5/A6/A11andB3/B4transmitters.Itcontainsmixed-**circuitsrequiredtodemodulateanddecodeWPC-compliantmessagepacketssentbythemobiledevicetoadjustthetransferredpower.

TheNE8151isanintelligentdevicethatperiodicallypingstheareasurroundingthebasestationtodetectamobiledeviceforchargingwhileminimizingidlepower.Oncethemobiledeviceisdetectedandauthenticated,theNE8151continuouslymonitorsallcommunicationsfromthemobiledevice,andadjuststhetransmittedpoweraccordinglybyvaryingtheswitchingfrequency,dutycycleorphaseoftheinverter.Formediumpowerstandard,italsoprovidestheFSKmodulationforcommunication.

Thedeviceincludesover-temperature/voltage/currentprotectionandaForeignObjectDetection(FOD)methodtoprotectthebasestationandmobiledevicefromoverheatinginthepresenceofametallicforeignobject.ItmanagesfaultconditionsassociatedwithpowertransferandcontrolsstatusLEDstoindicateoperatingmodes.

NE8051shallsupportbothlowandmediumpowerstandards.Forthelowpowerstandard,itshallbecompliantwithversion1.1.2standard.Version0.9forthemediumpowerisavailablewhenthisdocumentispreparedandshallbeusedasthebasisforthedesign.

NE8151shallbeabletotransmitpowerupto15WandbecomplianttoQilowandmediumpowerstandards.TheNE8151isavailableinanareasaving40-pin,5mmx5mmQFN.

TypicalApplicationCircuit

•Type=A1(DSEL=DSEL=0)

PinConfiguration&Description

NE8101

NE8101WirelessPowerTransmitter · •Single-Chipupto5WSolutionforWirelessPowerConsortium(WPC)“Qi”compliantLowpowerTransmitterDesignA11

· •ConformstoWPCv1.2Specifications

· •Upto10WTransmittedtoNE6101throughQC2.05V/9VAdapterinExtendedPowerMode

· •Over-Temperature/CurrentProtection

· •EmbeddedMCU

· •ForeignObjectDetection(FOD)

· •DemodulatesWPC-CompliantMessagePacketsfromReceiver

· •FSKModulatorforBi-directionalCommunicationbetweenTransmitterandReceiver)

Applications •WPC-CompliantWirelessChargersfor：

　-MobileandStartPhones

　-MP3Players

　-GlobalPositioningDevices

　-DigitalCameras •OtherWirelessPowerTransmittersin：

　-Carsandothervehicles

　-FurnitureBuilt-InWirelessChargers

　-ToyPowerSuppliesandChargers 

Description

TheNE8101isahighly-integratedsingle-chipWPC-compliantwirelesspowertransmitterICforpowertransmitterdesignA11.Thedeviceoperateswith5VinputvoltageorQC2.05V/9Vadapter,andsuppliesonesetofexternalfullbridgeinverterforDC/ACconversion.Itcontrolsthetransferredpowerbymodulatingtheswitchingfrequency,duty-cycleandphasespecifiedbytheWPCspecificationforA11.Itcontainsmixed-**circuitsrequiredtodemodulateanddecodeWPC-compliantmessagepacketssentbythemobiledevicetoadjustthetransferredpower.

TheNE8101isanintelligentdevicethatperiodicallypingstheareasurroundingthebasestationtodetectamobiledeviceforchargingwhileminimizingidlepower.Oncethemobiledeviceisdetectedandauthenticated,theNE8101continuouslymonitorsallcommunicationsfromthemobiledevice,andadjuststhetransmittedpoweraccordinglybyvaryingtheswitchingfrequency,dutycycleorphaseoftheinverter.

Thedeviceincludesover-temperature/currentprotectionandaForeignObjectDetection(FOD)methodtoprotectthebasestationandmobiledevicefromoverheatinginthepresenceofametallicforeignobject.ItmanagesfaultconditionsassociatedwithpowertransferandcontrolsstatusLEDstoindicateoperatingmodes.

NE8101iscompliantwithWPCv1.2standard,andisabletotransmitupto5Wpowerwith5Vsupply.Inpowerextendedmode,theQC2.05V/9Vadapterisusedastheinputsource,andtheNE8101cantransferupto10WtoNE6101orotherreceiverswithcompliantidentificationprotocolthroughincreasingtheinputvoltageto9V.

TheNE8101isavailableinanareasaving40-PIN,5mmx5mmQFN.

TypicalApplicationCircuit

PinConfiguration&Description