I am considering what would be the "best" way of level shifting two signals from 3.3V micro to 12V logic levels.
The other signal is a 1kHz PWM signal, other is just on/off control.
According to target datasheet the 12V logic inputs have a 30k pull-down, and logic levels are <0.4V for low and >9.0V for high. Unfortunately there is no spec about rise/fall times.
This is just for a quick prototype so I am tempted to find a 2-channel level converter chip that does this (FET gate drivers?) so can anyone suggest these or something similar?
Or should I just whip up some discrete transistor circuit and fine-tune and simulate different resistor values ad infinitum until it works? Something like in the picture, but obviously there are several permutations how to connect the base and pull resistors.