STSPIN840 Setting overcurrent values

mnguyen1 · ‎2026-05-04

Is the overcurrent protection set to 3A on the STSPIN840? If so, is there a way to change the trip value of the overcurrent protection to better align with its application? I want to change it so that the overcurrent trips at 1A. Thank you!

Peter BENSCH · ‎2026-05-04

Welcome @mnguyen1, to the community!

The overcurrent protection is designed to protect the MOSFETs and has a fixed rating of typically 3A, max. 3.5A. The low-side shunts connected to SENSEA and SENSEB on each full bridge are used for the control and limiting functions.

Hope that answers your question?

Regards
/Peter

In order to give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.

View solution in original post

Peter BENSCH · ‎2026-05-04

Welcome @mnguyen1, to the community!

The overcurrent protection is designed to protect the MOSFETs and has a fixed rating of typically 3A, max. 3.5A. The low-side shunts connected to SENSEA and SENSEB on each full bridge are used for the control and limiting functions.

Hope that answers your question?

Regards
/Peter

In order to give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.