voltage LMD18245

[kboudy]

Hey all-

I reckon this is a bit of a newbie question: I'm constructing an LMD18245-based circuit (the "Typical Application" circuit in the LMD18245 datasheet) & wanted to confirm something. I'll be using it with a SM2006B
motor rated at 3.6V & 2.0A/Phase. I'm under the impression that I can essentially ignore the voltage rating, since I the LMD18245 will supply a steady 2A current (using a 10K resistor for current limiting).

So, it's okay that my supply will be 12V even though the motor is rated at 3.6V right?

Thanks!
Keith

[pminmo]

Yes you are correct, as long as you select the appropriate resistors to set your current limit. You will get better performance though if you increase your supply voltage.

[kboudy]

The motors & components should be here any day now. Got the circuit etched & can't wait to put it together. Thanks to your reply I have the confidence to forge ahead