I have a square wave signal of 300 KHz which is 0.2 V to 1 V. It is the output of FP5138 Non-Sync PWM Controller IC. I want to drive a PMOS with this square wave but with the levels shifted to (Vin-12)V ... (Vin-5)V to Vin, where Vin is 20 to 32 V.
To explain it better, let me try this way (the Vin above and below are different):
0 1 Vin : A -> B Vout: C -> D A: 0.1 V typ, 0.2 V max B: 1.0 V typ, 1.2 V max C: D-12 min, D-5 max D: 20 V min, 32 V max
I have 12V, 1A source (78L12) and Vin source of the converter which has boundaries of D above.
It is going to be a P-MOSFET driver and I need up to 0.3 or maybe 0.4 A spikes for Cgs. MOSFET is not yet chosen.
I have tried to build this circuit but no hope.
I hope I could explain myself.