Which is why it baffles me that they have an SMD version that can=20
allegedly handle 5A.  I do have a 2 sq-in pad on the board to dissipate=20
heat, but it's no where near enough.

Cheers,
-Neil.


On 7/28/2014 8:01 AM, paulduffy@comcast.net wrote:
> Hi
>   =20
> The key will be using the TO220 package and having adequate heat sinking =
for the application.  Junction to case thermal resistance is lowest for the=
 TO220 variant, about 3 C/W.  I have done some modules with power drivers d=
isipating heat through the PCB and into a cast aluminum heat sink with ther=
mal paste between the PCB and heatsink.
> Best Regards,
>   =20
> Paul
>   =20
>
>

--=20
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