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Topic: TB6612FNG; Tiny dual motor driver; unused pins (Read 118 times) previous topic - next topic

SouthernAtHeart

I need a little motor driver to drive a small motor at high PWM and found this little guy. Once I'm done prototyping, I'll be adding it to my own custom board.  I'll only use 1 of the 2 h-bridges, though.  So would it be good to connect the 3 input pins (BIN1, BIN2, BPWM) to ground, or leave them unconnected.  I don't see any remark about it in the data sheet.

Robin2

I have some Pololu DRV8833 drivers and I just leave the unused pins unconnected.

...R
Two or three hours spent thinking and reading documentation solves most programming problems.

MorganS

#2
Nov 21, 2017, 12:30 am Last Edit: Nov 21, 2017, 12:30 am by MorganS
The TB6612 can be driven as a parallel pair. Just wire all the inputs to the same Arduino pins and the outputs can be wired together. Then you get twice the current capability.
"The problem is in the code you didn't post."

Robin2

The TB6612 can be driven as a parallel pair. Just wire all the inputs to the same Arduino pins and the outputs can be wired together. Then you get twice the current capability.
You can do the same with the DRV8833 but I don't need it.

...R
Two or three hours spent thinking and reading documentation solves most programming problems.

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