I have an application where I need to drive a 24V load with PWM, and high side switching via a P Channel Mosfet.
Most mosfets appear to have a
Vgs limit of +/-20V.
This feels like a well established problem, and I am trying not to re-invent the wheel.
I can see the direct solution of a pullup on the gate to 24V and an NPN BJT + Zenner to pull it down without violating the Vgs limit, but this doesn't seem like a particularly quick switching method (slow to switch off).
Is there a special gate driver chip that solves this standard seeming problem.