BMA7426 Evaluation Board with Isolated Daisy Chain

EVBMA7X2YDT1
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The EVBMA7X2YDT1 is an electrochemical impedance spectroscopy (EIS)-capable distributed cell monitoring unit (CMU) featuring electrical transport protocol link (eTPL) communication. It is ideal for rapid prototyping of high-voltage battery management system (HVBMS) hardware and software.

This evaluation board (EVB) integrates a single BMA7426 analog front end (AFE), which enables the device's integrated Discrete Fourier Transform (DFT) engine used for EIS measurements. The EVBMA7X2YDT1 can also be used to evaluate other devices in the family, including the BMA7124, BMA7424 and BMA7126.

Block Diagram

EVBMA7X2YDT1

EVBMA7X2YDT1 Evaluation Board
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Supported Devices

Battery Management

Battery Cell Controllers

  • BMA742X: 24-Channel and 26-Channel Li-Ion BCC IC ASIL D with EIS
  • BMA712X: 24-Channel and 26-Channel Li-Ion BCC IC ASIL D

Features

Voltage Measurement

  • One BMA7426 battery cell controller (BCC) for up to 26 cells, extendable by adding more CMUs to the daisy chain
  • Lifetime-guaranteed, high-accuracy cell voltage measurement channels with averaging and advanced filtering

Integrated Discrete Fourier Transform (DFT) for EIS Support

  • Extraction of one selectable frequency
  • Configurable observation window
  • Support for synchronized measurement start across multiple daisy chains

Temperature Measurement

  • 13 analog inputs for negative temperature coefficient (NTC) temperature sensors

Cell Balancing

  • Integrated passive cell balancing up to 200 mA peak

Communication

  • Isolated electrical transport protocol link (ETPL) communication between CMU and battery management unit (BMU)

Cost Reduction

  • Optimized bill of materials (BOM) using capacitive isolation on- and off-board Software-in-the-Loop (SIL) interface: Inter-Integrated Circuit (I²C) EEPR

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EVBMA7X2YDT1
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BMA7426 Evaluation Board with Isolated Daisy Chain.

    $150.00 USD
    In Stock :2

    Normally ships 1-2 business days

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