Injector driver chips? Where?

[Daniel Henriksson]

> 
> > 
> > Brad Sheridan wrote:
> > 
> > >  Does anyone have/ know where to get the Motorola MC33293T chip?
> > > 
> > 
> > I second this question.  I need a couple of pieces of these drivers as well.
> > I thought about calling Motorola directly to see if they'd sample me some...
> > If I lie sufficiently well, tell them I'm Son of GM and will be ordering
> > 10000 pieces next week, they may believe me...  Meanwhile, if you find some
> > let me know.  I was working on designing my own driver, since these Motorola
> > parts are essentially vaporware, but I can't seem to get the peak/hold 
> > circuit working.  I'll keep you posted, if you're not electrically challenged,
> > you may be able to build one up...
>  
>  I just got off the phone with Newark. They said that due to some sort of
> die problem, Motorola won't have them available until July. This is way past
> when I need them. I may try to build a circuit, but I'd rather buy one. Does
> anyone have any reccomendations for decent peak&hold injector driver
> circuits? In a quad package would be a real plus.
> 
Have you checked out the L584 from SGS-Thomson?
You can build a complete driver circuit with one L584 (DIP16), two darlingtons
and a few resitors and capacitors. The L584 can be set up to use one of four 
diffrent load current waveshapes, including peak-hold-drop and peak-drop.
I don't know if the IC is easy to get hold of, or if it's still in production.

If you want more details then let me know.


Sincerely,
Daniel Henriksson

damoto at future.campus.luth.se