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High DC-current motor controller for more than 25A?

Southbranch
Senior II

Hi!

I am looking for a brushed DC-motor ±12V controller for higher currents, typically 25A-30A. I have checked the ST products Evaluation & Development Boards for Brushed Motors - STMicroelectronics but it seems the highest current available is 2.5 A. However, it does not need to be a complete dev board.

I am considering to design something similar to Sabertooth 2x32 regenerative dual motor driver (dimensionengineering.com) that I can control with PWM from a STM32 MCU.

Any hints?

Thanks in advance

1 ACCEPTED SOLUTION

Accepted Solutions
Cristiana SCARAMEL
ST Employee

Hi @Lars Sörqvist,

for hig​h-current motor I can suggest a solution with Gate drivers + external MOSFET.

If you want evaluate our gate driver in a single board I can suggest:

  • EVAL6393FB with 2x L6393 half-bridge gate driver. You must replace the on-board MOSFET to reach the target current (DPAK or SOT footprint available)
  • EVALSTDRIVE101 with STDRIVE101 triple half-bridge gate driver (you can use only two leg of the device).

Let me know if this info is useful to you, if yes please "Select as Best" label to close the topic.

View solution in original post

3 REPLIES 3
gbm
Lead III

Chinese IBT_2 board will do, but it's not ST. :(

Southbranch
Senior II

Thanks, and yes, regrattably it is not ST :expressionless_face:

However, you pointed me in the right direction. Even though the BTS7960 chip from Infineon on the IBT-2 board is outdated, Infineon seems to have other chips and now I am considering this board:

BLDCSHIELDIFX007TTOBO1 Infineon Technologies | Mouser Sweden

Cristiana SCARAMEL
ST Employee

Hi @Lars Sörqvist,

for hig​h-current motor I can suggest a solution with Gate drivers + external MOSFET.

If you want evaluate our gate driver in a single board I can suggest:

  • EVAL6393FB with 2x L6393 half-bridge gate driver. You must replace the on-board MOSFET to reach the target current (DPAK or SOT footprint available)
  • EVALSTDRIVE101 with STDRIVE101 triple half-bridge gate driver (you can use only two leg of the device).

Let me know if this info is useful to you, if yes please "Select as Best" label to close the topic.