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A.Reza
Associate
Oct 25, 2021 10:10 AM UTC
Solved

hi, I am using L298 . I am driving 2 phase stepper motor with 4A. it's the parallel mode. I have parallel stages 1-2 and stages 3-4. unlike fig. 7 in the datasheet. and The stepper motor works well. Does this method damage the IC in the long run?

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Peter BENSCH
Peter BENSCHBest answer
ST Technical Moderator
Oct 25, 2021 5:48 PM UTC

Welcome, @A.Reza​, to the community!

The datasheet recommends paralleling channel 1 with 4 and channel 2 with 3: the thermal load on the output stages is thus better distributed on the chip.

It works with your design, but the resulting temperatures will be more concentrated (chip hot spots). It is therefore advisable to follow the instructions in the datasheet.

Good luck!

If the problem is resolved, please mark this topic as answered by selecting Select as best. This will help other users find that answer faster.

/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.

2 replies

Peter BENSCH
Peter BENSCHBest answer
ST Technical Moderator
Oct 25, 2021 5:48 PM UTC

Welcome, @A.Reza​, to the community!

The datasheet recommends paralleling channel 1 with 4 and channel 2 with 3: the thermal load on the output stages is thus better distributed on the chip.

It works with your design, but the resulting temperatures will be more concentrated (chip hot spots). It is therefore advisable to follow the instructions in the datasheet.

Good luck!

If the problem is resolved, please mark this topic as answered by selecting Select as best. This will help other users find that answer faster.

/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.
A.Reza
A.RezaAuthor
Associate
Oct 25, 2021 10:18 PM UTC

Hi Peter, It was a very informative point.

Thank you for your attention and speed of response.

Good luck