I've been designing a new motor shield to control up to 6 2.5A 12v motors (actually should be able to go up to 36v if I use capacitors with high enough voltage rating), and individual motors can have higher current, as long as the total doesn't exceed 15A.
It is a bit big (8cm x 10cm) because it uses all through-hole parts. I've not built it yet (I expect the PC boards to arrive next week, and I'm now having trouble finding a distributor that has TLE-5205-2 H-bridges from Infineon in stock). Anyone have any ideas who might have some in stock? I thought Digi-key did when I started the project, but they were out when I went to order them.
UPDATE: I just got a call from Digi-Key, they've been out since Sept 2010 and don't expect any in then next 18 weeks—Infineon seems to be having trouble making them. That means that probably no distributor has any. I must have mistyped the part number when I checked a month ago, as Digi-Key does still have a few TLE-5206-2 parts in stock, though those don't have a Hi-Z state on the output, so I probably can't use them
I have some info about the shield on my blog: http://karplus4arduino.wordpress.com
, but it seems like I need to redesign around a different part. Foo!