HVBMS Battery Management Unit (BMU)

HVBMS-BMU

The battery management unit (BMU) is the controlling part of the battery management system (BMS). It processes data from all other BMS modules, makes decisions to ensure the safety of the BMS, communicates with the VCU and drives the contactors connecting the battery to the car system.

Block Diagram

Choose a diagram:

HVBMS-BMU - 400 V using ETPL

HVBMS-BMU - 400 V using TPL

HVBMS-BMU - 400 V using CAN

HVBMS-BMU - 400 V using CAN

HVBMS-BMU - 800 V using ETPL

HVBMS-BMU - 800 V using TPL
Get diagram PDF

Supported Devices

Sensors

Battery Pressure Monitoring Sensors (BPMS)

  • NBP8-9x: Highly Integrated Battery Pressure Monitor Sensor

High Side Switches

  • MC12XS6: External Automotive Lighting Multi-Channel eXtreme Switch

BLDC, H-Bridge, Stepper

  • HB2000: SPI Programmable 10 A H-Bridge Brushed DC Motor Driver

Power Management

12 V, 24 V, and 48 V SBC Solutions

  • FS26: Safety System Basis Chip with Low Power, for ASIL D Systems

Processors and Microcontrollers

S32K Auto General-Purpose MCUs

  • S32K3: S32K3 Microcontrollers for Automotive General Purpose

Interfaces

CAN with Flexible Data Rate

  • TJA144x: Automotive CAN FD Transceiver Family

3.3 V / 5 V IO CAN Transceivers

  • TJA1057: High-Speed CAN Transceiver - Mantis Family

CAN Partial Networking

  • TJA1145A: High Speed CAN Transceiver with Partial Networking, CAN FD Data Rates up to 5 Mbit/s

Analog and Mixed Signal

Real-Time Clocks

  • PCA2131: Nano-Power Highly Accurate RTC with Integrated Quartz Crystal for Automotive Applications

Battery Management

Battery Communication ICs

  • MC33665A: General Purpose BMS Communication TPL Transceiver and CAN FD Gateway

Features

Interfaces

  • Two battery-internal communication option: Isolated electrical protocol link (ETPL) or standard CAN/CAN FD
  • VCU CAN FD interface with partial networking
  • Contactor drivers with PWM economization and current monitoring
  • Overcurrent protected outputs for battery cooling or heating valves
  • Overcurrent and reverse polarity protected outputs for junction box and DCLink bus pre-charge contactor

Advanced Features

  • On-board pressure sensor for thermal runaway detection
  • PWM-based interlock pilot loop
  • Lower current consumption in sleep mode
  • Cell voltage and battery current measurement synchronization for State of Health calculation

Wake-Up Sources

  • SBC for periodic wake up
  • VCU CAN for partial networking
  • CMU wake up via CMU CAN or ETPL
  • Pressure sensor for thermal runaway event detection

Buy Options

RD-K344BMU-Image

Click to expand

RD-K344BMU
Active

HVBMS Battery Management Unit with S32K344 (BMU).

    Order from distributors
    RD-HVBMSCTBUN-Image

    Click to expand

    RD-HVBMSCTBUN
    Active

    HVBMS Reference Design Bundle Using ETPL.

      $2699.00 USD
      In Stock :10

      Normally ships 1-2 business days

      ADD TO CART
      Order from distributors

      Documentation

      Quick reference to our documentation types

      Filters

      2 documents

      Compact List

      Design Resources

      Select a section:

      Related Hardware

      Quick reference to our board types.
      Filters

      1 hardware offering

      Training

      Filters

      1 trainings

      Support

      What do you need help with?

      • Narrow your search
      Search