Hi all,
For use in old timers, I want to use the N2HET pins on a TMS570LS1114 to drive logic level ignition IGBT's. The datasheet states that the maximum current for certain voltage ranges is 2 mA zero-dominant.
-How zero-dominant is zero-dominant? Just a duty cycle less than 50% or considerably lower?
-If I don't care about the pin voltage and just want to charge/discharge the IGBT gate ASAP without using a buffer, what would be the required resistor for current limiting just to avoid IC damage? 3.3 v @ 2 mA indicates ~1.7k, which would be doable but quite slow. But again, I don't care about the pin voltage, just about avoiding physical damage to the port, so how low could I go?
Thanks in advance!
