TB6612FNG VM Question


I have a question about this BOB.

According to this application note :https://toshiba.semicon-storage.com/info/docget.jsp?did=54655&prodName=TB6612FNG , VM should be switched on after VCC. So I understand the Microcontroller should switch on VM as part of the setup (by the mean of a transistor for instance). Could you comment this point ?

Best regards


Your understanding seems correct, and having your microcontroller use a transistor to turn on motor power seems like a good solution.

By the way, despite the recommendation in that app note, we have seen lots of systems that turn on power to VM and VCC at the same time, and I do not think I have ever heard of an issue that seemed to be caused by that.