BMI7018 | 18-Channel Battery Cell Controller | NXP Semiconductors

18-Channel Li-Ion Battery Cell Controller IC

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Block Diagram

BMI7018

BMI7018 Block Diagram

Features

Key Features

  • Monitoring of up to 18 battery cells and 8 temperatures
  • Configurable averaging of cell voltage measurements (digital filtering)
  • Robust isolated 2.0 Mbit/s communication interface
  • Onboard balancing up to 360 mA peak

Voltage and Temperature Measurement

  • From 4 to 18 Cell voltage measurement channels with integrated configurable averaging
  • Total stack voltage measurement
  • Nine ADC/GPIO/temperature sensor inputs
  • Accuracy tuned for ESS application

On-Board Passive Cell Balancing

  • Up to 360 mA peak cell balancing with diagnostics
  • Automatic odd/even balancing sequence
  • Timer, voltage, temperature, PWM-controlled balancing
  • Low Integrated Balancing MOSFET RdsON
  • Balancing in sleep mode

Communication

  • Robust, isolated 2.0 Mbit/s 2-wire twisted-pair differential daisy chain communication
  • Inductive or capacitive coupling
  • Up to 62 nodes per daisy chain, loop-back support
  • 4 Mbit/s SPI also available

Supply Voltage

  • 9.0 V ≤ VPWR ≤ 90 V operation, max transient 94 V

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N true 0 PSPBMI7018en 2 Data Sheet Data Sheet t520 1 Errata Errata t522 1 en_US en_US en Data Sheet Data Sheet 1 1 1.0 Y English https://docs.nxp.com/bundle/BMI7018/page/topics/general_description.html The BMI7018 is a lithium-ion battery-cell controller IC. It can be used in industrial applications, such as energy storage systems (ESS) and uninterruptible power supply (UPS) systems. 1727287053151718336564 PSP 3.9 MB None None documents None 1727287053151718336564 /docs/en/data-sheet/BMI7018.pdf 3913517 /docs/en/data-sheet/BMI7018.pdf BMI7018 documents N N Y 2024-09-25 BMI7018 18-Cell Battery-Cell Controller IC Data Sheet https://docs.nxp.com/bundle/BMI7018/page/topics/general_description.html /docs/en/data-sheet/BMI7018.pdf Data Sheet N 980000996212993340 /bundle/BMI7018/page/topics/general_description.html /docs/en/data-sheet/BMI7018.pdf 2024-10-11 3.9 MB pdf N en Sep 23, 2024 980000996212993340 Data Sheet Y N BMI7018 18-Cell Battery-Cell Controller IC Data Sheet Errata Errata 1 2 2.0 English This errata sheet describes the functional problems and deviations of the BMI7018 from the characteristics known at the release date of this document. 1727816654933689834001 PSP 173.9 KB None None documents None 1727816654933689834001 /docs/en/errata/ES_BMI7018.pdf 173901 /docs/en/errata/ES_BMI7018.pdf ES_BMI7018 documents N N 2024-10-01 ES_BMI7018, Errata Sheet for BMI7018 /docs/en/errata/ES_BMI7018.pdf /docs/en/errata/ES_BMI7018.pdf Errata N 155452329886410597 2025-02-05 pdf N en Jan 31, 2025 155452329886410597 Errata Y N ES_BMI7018, Errata Sheet for BMI7018 false 0 BMI7018 downloads en true 1 Y PSP Y Y Data Sheet 1 https://docs.nxp.com/bundle/BMI7018/page/topics/general_description.html /docs/en/data-sheet/BMI7018.pdf 2024-09-25 /bundle/BMI7018/page/topics/general_description.html 1727287053151718336564 PSP 1 Sep 23, 2024 Data Sheet The BMI7018 is a lithium-ion battery-cell controller IC. It can be used in industrial applications, such as energy storage systems (ESS) and uninterruptible power supply (UPS) systems. None /docs/en/data-sheet/BMI7018.pdf Y English documents 3913517 Y None 980000996212993340 2024-10-11 N https://docs.nxp.com/bundle/BMI7018/page/topics/general_description.html BMI7018 18-Cell Battery-Cell Controller IC Data Sheet /docs/en/data-sheet/BMI7018.pdf documents 980000996212993340 Data Sheet N en None Y /docs/en/data-sheet/BMI7018.pdf 3.9 MB pdf 1.0 N N BMI7018 18-Cell Battery-Cell Controller IC Data Sheet 3.9 MB BMI7018 N 1727287053151718336564 Errata 1 /docs/en/errata/ES_BMI7018.pdf 2024-10-01 1727816654933689834001 PSP 2 Jan 31, 2025 Errata This errata sheet describes the functional problems and deviations of the BMI7018 from the characteristics known at the release date of this document. None /docs/en/errata/ES_BMI7018.pdf English documents 173901 None 155452329886410597 2025-02-05 N /docs/en/errata/ES_BMI7018.pdf ES_BMI7018, Errata Sheet for BMI7018 /docs/en/errata/ES_BMI7018.pdf documents 155452329886410597 Errata N en None Y pdf 2.0 N N ES_BMI7018, Errata Sheet for BMI7018 173.9 KB ES_BMI7018 N 1727816654933689834001 true Y Products

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