Lae801p Rev 20 Schematic Better Link
PWM_out ---[22Ω]---+---[1N4148 cathode]---MOSFET gate | [15V Zener] | GND
The Rev 20 schematic revealed that the gate resistor—R422—was critical. In the blurry scan of Rev 19, it looked like a 10-ohm resistor. But in the crisp, high-contrast lines of Rev 20, the value was clearly updated. It wasn't 10 ohms lae801p rev 20 schematic better