L6470 motor power interlock

fbasso · ‎2014-02-11

Posted on February 11, 2014 at 20:11

I am using an L6470 controller in an application that requires an interlock circuit to stop motor rotation if the interlock switch opens. Is it possible to safely switch 24V power to the VSA and VSB pins off then on to remove and re-apply motor power. Is it safe to allow the CP to run while VS is turned off?

Enrico Poli · ‎2014-02-17

Posted on February 17, 2014 at 16:11

Hi,

when the supply voltage falls below the UVLO threshold, the power outputs are turned off and the charge pump si disabled.

Regards

Enrico