[Diy_efi] peak-and-hold injector driver ic's

[Dave Dahlgren]

What do they use inside a current sequential ECM from any manufacturer? 
Some one must be using a factory P&H setup with appropriate amperage..You would
think at the OEM level that the board space and cost would be important and it
seems hard to believe they are all using saturated injectors.
Dave

Bevan Weiss wrote:
> 
> Does anyone know of any other peak and hold injector driver IC's than the
> standard
> LM1949(National), L584(ST) and DRV103(TI)
> 
> The CS452/453's are no longer in production, and so are very hard to get
> ahold of.
> I've thought about making up a discrete circuit for the same effect, ie high
> current turn on, switch to low current hold after some time t.  It'd just
> take up a little more room, and cost a little more in added component cost.
> Any ideas??
> 
> Thanks,
> Bevan
> 
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