X-NUCLEO-IHM16M1 Max Current

[pelino]

I am currently using the X‑NUCLEO‑IHM16M1 expansion board and noticed a discrepancy between the Motor Control Workbench and the official ST documentation regarding the rated current.

• In Motor Control Workbench, the Rated Current is shown as 2.1 A.
• On the official product page and data brief, it states Output current up to 1.5 A rms

https://www.st.com/en/evaluation-tools/p-nucleo-ihm03.html

Could you please clarify the following:

1. What is the basis for the 2.1 A figure shown in Motor Control Workbench (e.g., RMS, peak, or internal limit)?
2. Which current rating should be considered as the actual board limit for design purposes?
3. Does the difference relate to the STSPIN830 driver’s internal specifications or to a configuration setting in the tool?

Thank you very much for your support.

Best regards,

HyeonSeok​

[STuser2 · Accepted solution]

Check the below thread

Solved: Application Current and Over Current Protection Pa... - STMicroelectronics Community

My understanding is 

1.5A is RMS value 

1.5* Sqrt(2) = 2.12 A