Skip to main content
Associate II
August 28, 2025
Solved

Formula for overcurrent protection threshold for STSPIN32G4?

  • August 28, 2025
  • 2 replies
  • 880 views

Original title: "What is the correspondence between the overcurrent protection threshold and the DAC value for STSPIN32G4? Can you provide the calculation formul"

Shortened in accordance with the posting guidelines.


I have an EVSPIN32G4 evaluation board with a sampling resistor of 0.005Ω.
Why does a current of 40A correspond to a threshold of 7427 (0.37V)?

Garey_0-1756382124801.png

image.png

Best answer by GMA

Hello @Garey,

Did you review the "5.5.2 Embedded comparators" section of the EVSPIN32G4 user manual?

2 replies

GareyAuthor
Associate II
September 1, 2025

Hope to get a reply as soon as possible. I'm really concerned about whether it can truly protect my circuits and motors.   :)

GMA
GMABest answer
Technical Moderator
September 1, 2025

Hello @Garey,

Did you review the "5.5.2 Embedded comparators" section of the EVSPIN32G4 user manual?

If you agree with the answer, please accept it by clicking on 'Accept as solution'.Best regards.GMA
GareyAuthor
Associate II
September 1, 2025

thank you.

Senior III
September 1, 2025

3.3V corresponds to 65535 hence 7427 correspond to 0.37V. How 40A is achieved you can go through the document attached, there is section on over current protection.