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10-Cell Li-Ion Battery Management System

Overview

This compact battery management system supports Li-ion battery packs with up to 10 cells in series, providing accurate monitoring, protection, cell balancing, and fuel gauging. High-current capability and flexible wired and wireless connectivity enable reliable, real-time battery monitoring and simplified system integration.

System Benefits:

  • Reduces external components and simplifies system design through highly integrated battery management functionality
  • Delivers accurate fuel gauging, cell balancing, and comprehensive battery protection
  • Supports up to 10 Li-ion cells in series with high-current capability in a compact design
  • Enables energy-efficient operation with high-performance, ultra-low power processing
  • Supports multiple wired and wireless communication interfaces for flexible system integration

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WS094-2 WEBConnector Arrow.1769Dynamic connector.381Dynamic connectorConnector Line.557Connector Arrow.1796Connector Arrow.225Connector Arrow.217Connector Arrow.1768Dynamic connector.155Dynamic connector.327Dynamic connector.308Connector Line.611Connector Line.612Connector Line.472Connector Line.473Connector Line.543Connector Arrow.272Connector Line.299Connector Line.297Connector Line.294Connector Line.296Connector Line.298Connector Line.278Dynamic connector.1740Connector Line.500Battery PackBattery PackBattery Pack10 Cell Series10 Cell Series10 Cell SeriesSpeakerspeaker_8_Sheet.6Sheet.7Sheet.8Sheet.9+5V+5V+5V+3.3V_BLE+3.3V_BLE+3.3V_BLEVertical Wire Bundle.1741555Sheet.29+5V+5V+5VVertical Wire Bundle.100333Sheet.33Vertical Wire Bundle.1757333Sheet.36Shunt 0.15 mOhm X2Shunt 0.15 mOhm x2Shunt 0.15 mOhm x2Resistor - Fixed.89Connector Arrow.332Dynamic connector.342SCD_OFFSCD_OFFSCD_OFFConnector Line.454Connector Line.474Connector ArrowConnector Arrow.478ISENSE0ISENSE0ISENSE0ISENSE1ISENSE1ISENSE1Connector Arrow.586Connector Arrow.587Cell10Cell10Cell10Cell0Cell0Cell0Connector dotted lineWS094-2WS094-2WS094-2Connector LineCFET_OFFCFET_OFFCFET_OFFCHGCHGCHGDFET_OFFDFET_OFFDFET_OFFDSGDSGDSGConnector Arrow.226Vertical Wire Bundle.216222Sheet.158+5V_AUX+5V_AUX+5V_AUXLCD_VDDLCD_VDDLCD_VDD+5V_AUX+5V_AUX+5V_AUXLCD_VDDLCD_VDDLCD_VDDPACK+PACK+PACK+PACK+PACK+PACK+N-Channel Depletion MOSFET.309Sheet.167Sheet.168Sheet.169Sheet.170Sheet.171Sheet.172Sheet.173Sheet.174Sheet.175Sheet.176Sheet.177Sheet.178Connect.50Sheet.180Sheet.181Sheet.182+5V_AUX+5V_AUX+5V_AUXDynamic connector.330Connector Arrow.334PACK+PACK+PACK+B+B+B+Board.337Connector 1.338DrainDrainDrainPreCharging FETPreCharging FETPreCharging FETPreDischarging FETPreDischarging FETPreDischarging FETP-Channel Depletion MOSFET.342Sheet.196Sheet.197Sheet.198Sheet.199Sheet.200Sheet.201Sheet.202Sheet.203Sheet.204Sheet.205Sheet.206Connect.46Sheet.208Sheet.209N-Channel Depletion MOSFET.601N-Channel Depletion MOSFET.603P-Channel Depletion MOSFET.359Sheet.213Sheet.214Sheet.215Sheet.216Sheet.217Sheet.218Sheet.219Sheet.220Sheet.221Sheet.222Sheet.223Connect.46Sheet.225Sheet.226N-Channel Depletion MOSFET.601N-Channel Depletion MOSFET.603PACK+PACK+PACK+B+B+B+Resistor - FixedResistor - Fixed.662Connector Arrow.282Connector Arrow.290Connector Arrow.291Connector Arrow.292Connector Arrow.293Connector Line.295Vertical Wire Bundle.300666Sheet.261Charging FET Control & Hardware OV ProtectionCharging FET Control & Hardware OV ProtectionCharging FET Control & Hardware OV ProtectionConnector Arrow.311Connector Arrow.313Discharging FET Control & Reverse Polarity ProtectionDischarging FET Control & Reverse Polarity ProtectionDischarging FET Control & Reverse Polarity ProtectionConnector Arrow.277SCDSCDSCDResistor - Fixed.304Connector Line.305Connector Line.306Connector Arrow.568Cell8Cell8Cell8Connector Arrow.570Cell7Cell7Cell7Connector Arrow.572Cell6Cell6Cell6Connector Arrow.574Cell5Cell5Cell5Connector Arrow.576Cell4Cell4Cell4Connector Arrow.578Cell3Cell3Cell3Connector Arrow.580Cell2Cell2Cell2Connector Arrow.582Cell1Cell1Cell1Connector Arrow.584Cell0Cell0Cell0Battery Li-ion.1077Sheet.439Sheet.440Sheet.441Sheet.442Sheet.443Sheet.444Sheet.445Sheet.446Battery Li-ion.312Sheet.448Sheet.449Sheet.450Sheet.451Sheet.452Sheet.453Sheet.454Sheet.455Battery Li-ion.321Sheet.457Sheet.458Sheet.459Sheet.460Sheet.461Sheet.462Sheet.463Sheet.464Battery Li-ion.330Sheet.466Sheet.467Sheet.468Sheet.469Sheet.470Sheet.471Sheet.472Sheet.473Battery Li-ion.339Sheet.475Sheet.476Sheet.477Sheet.478Sheet.479Sheet.480Sheet.481Sheet.482Battery Li-ion.348Sheet.484Sheet.485Sheet.486Sheet.487Sheet.488Sheet.489Sheet.490Sheet.491Battery Li-ion.357Sheet.493Sheet.494Sheet.495Sheet.496Sheet.497Sheet.498Sheet.499Sheet.500Battery Li-ion.366Sheet.502Sheet.503Sheet.504Sheet.505Sheet.506Sheet.507Sheet.508Sheet.509Battery Li-ion.375Sheet.511Sheet.512Sheet.513Sheet.514Sheet.515Sheet.516Sheet.517Sheet.518Battery Li-ion.384Sheet.520Sheet.521Sheet.522Sheet.523Sheet.524Sheet.525Sheet.526Sheet.527LineConnector Arrow.394Cell9Cell9Cell9Connector Arrow.396Cell10Cell10Cell10Connector Arrow.538Connector Arrow.541Ground - EarthSheet.545Sheet.546Sheet.547Sheet.548Charger/LoadCharger/LoadCharger/LoadLevel ShifterLevel ShifterLevel ShifterExtended Bluetooth LE ConnectorExtended Bluetooth LE ConnectorExtended Bluetooth LE ConnectorTemperature Sensor x5Temperature Sensor x5Temperature Sensor x5LDOLDOLDORS-485 TransceiverRS-485 TransceiverRS-485 Transceiver 4-bit LCD Display4-Bit LCD Display4-Bit LCD DisplayGUIGUIGUIDual-Channel Load SwitchDual-Channel Load SwitchDual-Channel Load SwitchBluetooth Low EnergyBluetooth Low EnergyBluetooth Low Energy Op AmpOp AmpOp AmpSheet.550Analog Front End ProcessorAnalog Front End ProcessorAnalog Front End ProcessorCell ConditioningCell ConditioningCell ConditioningGPIOGPIOGPIOADCADCADCVBATVBATVBATCFOUTCFOUTCFOUTVDDVDDVDDVCCVCCVCCPONPONPONP07P07P07CREGFCREGFCREGFISENSE0ISENSE0ISENSE0ISENSE1ISENSE1ISENSE1DFOUTDFOUTDFOUTPACKPACKPACKHVP1HVP1HVP1UARTUARTUARTGNDGNDGNDP20P20P20HVP2HVP2HVP2P20P20P20SPISPISPIGPIO/ I2CGPIO/I2CGPIO/I2CGPIOGPIOGPIOSheet.551MOSFET x5MOSFET x5MOSFET x5N-Channel Depletion MOSFETSheet.40Sheet.41Sheet.42Sheet.43Sheet.44Sheet.45Sheet.46Sheet.47Sheet.48Sheet.49Sheet.50Sheet.51Sheet.52Sheet.53Sheet.54N-Channel Depletion MOSFET.1501Sheet.56Sheet.57Sheet.58Sheet.59Sheet.60Sheet.61Sheet.62Sheet.63Sheet.64Sheet.65Sheet.66Sheet.67Sheet.68Sheet.69Connector 1.160DrainDrainDrainCharging FETCharging FETCharging FETDischarging FETDischarging FETDischarging FET

Dual-Channel Load Switch

Load Switches

Bluetooth Low Energy

Bluetooth Low Energy

RS-485 Transceiver

RS-485/422, RS-232, & Multi-protocol Transceivers

Analog Front End Processor

Battery Fuel Gauges

MOSFET

Power MOSFETs

Op Amp

General-purpose Op Amps

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