BESS Cell Monitoring Unit (CMU) with 3x 18S Capability

RDI7018C3T1

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The RDI7018C3T1 is a battery cell monitoring unit (CMU) reference design with electrical transport protocol link (ETPL) communication interface toward a BMU. It is ideal for rapid prototyping of a high-voltage battery energy storage system (BESS) hardware and software. This board contains three BMI7018 analog front ends (AFEs) in a daisy chain.

It can be used to monitor a battery module with up to 54 cells. There are in total 27 GPIO/Analog measurement inputs for temperature or other measurements.

Block Diagram

RDI7018C3T1

RDI7018C3T1 Block Diagram
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Supported Devices

Battery Management

Battery Cell Controllers

  • BMI7018: 18-Channel Li-Ion Battery Cell Controller IC

Features

Voltage Measurement

  • 3 BMI7018 battery cell controllers (BCCs) for up to 54 cells, extendable by adding more CMUs to the daisy chain
  • Life-time guaranteed high accuracy cell voltage measurement channels, with averaging and advanced filtering

Temperature Measurement

  • 3 x 9 analog inputs (including temperature sensors) or GPIOs with advanced filtering

Cell Balancing

  • Cell balancing with integrated temperature-controller function with up to 300 mA (using default setup)

Pressure Sensing

  • Onboard pressure sensor for thermal run away detection

Communication

  • Isolated TPL communication between CMU and BMU

Buy Options

BATT-18CTCABLE30-Image

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BATT-18CTCABLE30
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Cell Terminal (CT) cable, 18 cells, 30 cm-long.

    $25.00 USD
    In Stock :21

    Normally ships 1-2 business days

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    BATT-TPLCABLE50-Image

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    BATT-TPLCABLE50
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    Electrical transport protocol link (ETPL), two-wire, twisted, 50 cm-long cable.

      $14.38 USD
      In Stock :20

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      BATT-TPLCABLE20-Image

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      BATT-TPLCABLE20
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      Electrical transport protocol link (ETPL), two-wire, twisted, 20 cm-long cable.

        $14.38 USD
        In Stock :19

        Normally ships 1-2 business days

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        Order from distributors
        RDI7018C3T1-Image

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        RDI7018C3T1
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        BESS Cell Monitoring Unit (CMU) with 3x 18S Capability.

          $379.00 USD
          In Stock :8

          Normally ships 1-2 business days

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          Order from distributors

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