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Reference DesignNxp

RD33774ADSTEVB: MC33774ATA Evaluation Board with Isolated Daisy Chain Communication

Reference design for the MC33774A analog front end (AFE) featuring isolated ETPL daisy chain communication for high-voltage battery management systems (HVBMS).

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Overview

The RD33774ADSTEVB is a distributed cell monitoring unit (CMU) reference design featuring the MC33774A analog front end (AFE). It is designed for rapid prototyping of high-voltage battery management system (HVBMS) hardware and software. The board utilizes Electrical Transport Protocol Link (ETPL) for isolated daisy chain communication via isolation transformers or capacitive coupling. Key features include 18 cell balancing outputs (CB0 to CB18), 18 voltage sense inputs (CT0 to CT18), and 8 NTC inputs for temperature sensing. It also incorporates an I2C-BUS for EEPROM connectivity and GPIO support.

Use Cases

  • Rapid prototyping of high-voltage battery management system (HVBMS) hardware
  • Development of HVBMS software
  • Distributed cell monitoring unit (CMU) evaluation
  • Isolated daisy chain communication testing in battery systems

Topics

MC33774A
MC33774ATA
RD33774ADSTEVB
Battery Management System
HVBMS
ETPL
Cell Monitoring Unit
CMU
Analog Front End
Battery Cell Controller

Referenced Parts

MC33774A

NXP

This board contains one MC33774A analog front end (AFEs) in a daisy chain.

MC33774ATA

NXP

MC33774ATA Evaluation Board with Isolated Daisy Chain Communication.