Currently I'm using Arduino UNO R3 board. I want to drive small DC Motor using same power source as the arduino is using. My motor driver is TB6612FNG and it works well.
I have two motors. One is 5V the other is 12V.
So I connect arduino's VIN pin to TB6612FNG's VM(Motor Power) Pins for more voltage to supply 12V motor. It works good.
But when I connect USB power for 5V motor then VM voltage is measured under 5V (around 4.4V).
How can I fix it?Is there too much current draw pulling V down to 4.4 Why this voltage appears on VM, and which path is using this voltage?
Any comment appreciated Thanks