Yep! They're designed for driving inductive loads
and the diodes match the FETs for performance.
The diodes are generally schottky or fast recovery
and have low on drop, 0.2v at medium currents is
common. But as someone said, often it's more
efficient to turn the FET on for flyback and let
the FET handle the reverse electrons.
-Roman


Dan Michaels wrote:
>
> Another question related to motor control. I am looking at
> building a discrete hi-current h-bridge using IRL540 [n-chan]
> and IRL5305 [p-chan] MOSFETs.
>
> These devices have an internal "body diode" that is in the
> exact configuration that, if 4 of these devices were hooked
> up in a full h-bridge config [p-chan above, n-chan below],
> that the diodes would fit together to form a perfect bridge
> clamp.
>
> The question is - the specs indicate these body diodes are
> quite fast and able to handle large currents, and I just wanted
> some outside verification that they are adequate to the inductive
> spike clamping job. Yes ????//
>
> thanks,
> - dan michaels
> www.oricomtech.com
> =========================
>
> --
> http://www.piclist.com hint: The list server can filter out subtopics
> (like ads or off topics) for you. See http://www.piclist.com/#topics

--
http://www.piclist.com hint: The PICList is archived three different
ways.  See http://www.piclist.com/#archives for details.