MC33775A Evaluation Board with Isolated Daisy Chain Communication

RD33775ADSTEVB

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The RD33775ADSTEVB evaluation board (EVB) features the MC33775A, a 14-channel battery cell controller for automotive and industrial Li-ion battery applications. It is a reference cell monitoring unit (CMU), designed to support customer development and evaluation.

The board can be connected to NXP 14-cell battery emulator or a customer Li-ion battery module with 4-14 cells in series. It supports cell voltage measurement, passive cell balancing and GPIOs.

Block Diagram

MC33775A Evaluation Board with Isolated ETPL Daisy Chain Communication

Evaluation Board for MC33775A with Isolated ETPL Daisy Chain Communication
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Supported Devices

Power Management

Battery Cell Controllers

  • MC33775: 14 Channel Li-Ion Battery Cell Controller IC ASIL D

Features

Voltage Measurement

  • One MC33775A battery cell controller (BCC) for up to 14 cells, extendable by adding more CMUs to the daisy chain
  • Lifetime guaranteed high accuracy cell voltage measurement channels, with averaging and advanced filtering

Temperature Measurement

  • Eight analog inputs (including temperature sensors) or GPIOs with advanced filtering

Cell Balancing

  • Integrated temperature-controlled cell balancing with up to 300 mA (100 mA using default setup)

Communication

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

Cost Reduction

  • Optional optimized BOM using capacitive isolation on and off board

Buy Options

RD33775ADSTEVB-Image

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  • RD33775ADSTEVB

  • MC33775A Evaluation Board with Isolated Daisy Chain Communication.

  • Kit contains:

    • 1 RD33775DSTEVB board
    • 1 supply cable
    • 1 ETPL cable
  • $135.00 USD
  • For a quantity of 1
    • Availability: In stock
    • Inventory: 16
    • Shipping: Normally ships 1-2 business days
Buy from NXPBuy From Distributor
BATT-TPLCABLE20-Image

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  • BATT-TPLCABLE20

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

  • $14.38 USD
  • For a quantity of 1
    • Availability: In stock
    • Inventory: 6
    • Shipping: Normally ships 1-2 business days
Buy from NXPBuy From Distributor
BATT-TPLCABLE50-Image

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  • BATT-TPLCABLE50

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

  • $14.38 USD
  • For a quantity of 1
    • Availability: In stock
    • Inventory: 1
    • Shipping: Normally ships 1-2 business days
Buy from NXPBuy From Distributor

Documentation

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Design Resources

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2 design files

Training

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