HVBMS Battery Management Unit (BMU)

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

Supported Devices


Battery Pressure Monitoring Sensors (BPMS)

Power Management

High Side Switches

System Basis Chips

BLDC, H-Bridge, Stepper

Battery Communication ICs

Processors and Microcontrollers

S32K Auto General-Purpose MCUs


CAN with Flexible Data Rate

3.3 V / 5 V IO CAN Transceivers

CAN Partial Networking

Analog and Mixed Signal

Real-Time Clocks



  • 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


Click to expand

  • RD-K344BMU

  • HVBMS Battery Management Unit with S32K344 (BMU).

  • $819.00USD
  • For a quantity of 1
Order from distributors

Click to expand

  • $2699.00USD
  • For a quantity of 1
    • Availability: In stock
    • Inventory: 10
    • Shipping: Normally ships 1-2 business days
Order from distributors


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