Injector Drivers

[Sandy]

Check out the EFI332 web site! I have designed a board that uses them. They
are also good for driving an igniton coil with some simple circuit mods. 

Sandy

At 02:48 AM 12/27/95 -0800, you wrote:
>After reading several posts about wanting drivers for injectors, I was
>wondering if anyone has used National Semiconductors LM1949 Injector
>Drive Controller.  It is TTL/CMOS input level compatible and using a
>2N6044 Darlington transistor can drive injectors to over 5 amps in
>either peak and hold or constant current mode. It even has a provision
>to drop peak current if voltage drops below normal designed supply
>voltage levels so the injector is not held on peak causing damage to the
>injector.  It seems to use a very minimal number of external parts and
>will work reliably down to three volts (low battery).  It's temperature
>range is -55 C to +125 C ambient.
>
>Any response about any problems or experience with this controller would
>be helpful.
>
>Thanks
>
>