Other Parts Discussed in Thread: TIDA-00751
I have been working on a design based on the circuit shown in PMP12072. I ran into a problem where the circuit was not shutting off the MOSFET's quick enough. There was too much delay between the time the input signal went to zero and when the MOSFET's turned off. So I saw the turn-off circuit shown in TIDA-00751 and did a copper spin to try this circuit. Improvement was seen. However it is not turning off as fast as I need or as fast as what is shown in the TI design files related to TIDA-00751. I have compared the spec's for the MOSFET's shown in PMP12072 and TIDA-00751 and it doesn't seem like the differences should be causing as much turn-off delay as I am seeing. From the time the input drops to zero and the output turns off is about 1.3msec. Files are attached. As always any comments/thoughts you can provide are greatly appreciated.