Motorola's non-micro chip divisions where spun off as "ON semiconductor"
http://www.onsemi.com/

I have no idea if they have what you're looking for :)

Paul

> -----Original Message-----
> From: pic microcontroller discussion list
> [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Chris Loiacono
> Sent: Friday, November 08, 2002 3:10 PM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: It must be motor day....
>
>
> I just took on a project for a dedicated machine logic controller
> and I had
> to include a driver for a 90V 1.75A PMDC Motor with current
> limiting per the
> client's request. This is great, but I haven't done much with motors since
> SUNY more than 20 years ago. While playing around with discrete switching
> transistors, I realized that Motorola used to make all sorts of motor
> control chips. Aside from not seeing any at Motorola.com, my
> initial search
> showed that single chip driver/controllers seem to max out at about 46
> volts.
> So I believe that to simplify my desugn I should be looking for
> drivers for
> controlling IGBT's or MOSFET's. I think power MOSFET's are the
> right choice
> for the voltage and size of the motor anyway.....
>
> Could anyone help narrow my search or correct my thinking on this?
>
> TIA,
> Chris
>
>

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