Hello all,
I am stuck with the following problem: I want to drive a low impedance fuel injector using the LM1949 (https://www.electro-tech-online.com/custompdfs/2009/10/LM1949.pdf) IC. My application is very similar to that shown on the first page of the data sheet. However I want to apply a boost voltage of 60V for the first 0.5 ms to decrease injector opening time by quickly ramping the coil current in the injector to 10A. I have a simple circuit using a timer and dflip flop to give me a 5V output for the first 0.5ms of the injection event and every thing looks pretty good so far. The only problem I am left with is the darlington. Can you guys recommend a darlington that can be drivven by the LM1949 that can handle 10A and 60V?
Thanks Matthias
I am stuck with the following problem: I want to drive a low impedance fuel injector using the LM1949 (https://www.electro-tech-online.com/custompdfs/2009/10/LM1949.pdf) IC. My application is very similar to that shown on the first page of the data sheet. However I want to apply a boost voltage of 60V for the first 0.5 ms to decrease injector opening time by quickly ramping the coil current in the injector to 10A. I have a simple circuit using a timer and dflip flop to give me a 5V output for the first 0.5ms of the injection event and every thing looks pretty good so far. The only problem I am left with is the darlington. Can you guys recommend a darlington that can be drivven by the LM1949 that can handle 10A and 60V?
Thanks Matthias