3-phase bridge drive circuit for automotive and industrial BLDC motors

This reference design provides examples of application circuit and simulation for TPD7212F / FN which features overcurrent protection, reverse power connection protection and others.

3-phase BLDC Motor Drive Applications (U-phase) of 3-phase bridge drive circuit for automotive and industrial BLDC motors.

Features

  • 3-phase BLDC motors drive circuit using TPD7212F/FN and power MOSFET TPW1R104PB
  • Various protection circuits using TPD7104AF for automotive and power MOSFET TPW1R104PB
  • Input voltage : 12V
  • Over current detection function
  • Power supply reverse connection protection function
  • Output cutoff function
  • Output-voltage monitoring function
  • Charge pump circuit voltage monitoring function

Description

  • Introduction of application to 3-phase brushless motor drive circuit combining TPD7212F/FN and TPD7104AF and power MOSFET
  • Explanation of overcurrent detection function and power supply connection protection function using TPD7104AF
  • Explanation of protection function using TPD7212F/FN
  • Operation confirmation by spice simulation
Simulation waveform for overcurrent protection of 3-phase bridge drive circuit for automotive and industrial BLDC motors.
Simulation Waveform for Overcurrent Protection

Design Documents

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Design Data

Provides circuit data that can be loaded into EDA tools, PCB layout data, and data used in PCB manufacturing. Available in formats from multiple tool vendors. You can freely edit it with your preferred tool.

Used Toshiba Items

Part Number Device Category Portion Usage Description
Intelligent power device (3phase full bridge power-MOSFET driver with built-in charge pump) 1 Automotive Gate driver for 3 phase full-bridge, WQFN32
Intelligent power device (3phase full bridge power-MOSFET driver with built-in charge pump) 1 Automotive Gate driver for 3 phase full-bridge, SSOP30
Intelligent power device (High side power-MOSFET driver with built-in charge pump) 4 Automotive Gate driver for High-side switch, PS-8
Power MOSFET (N-ch single 30V<VDSS≤60V) 11 N-ch MOSFET, 40 V, 120 A, 0.00114 Ω@10V, DSOP Advance(WF)M

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