Best schematic for driving 12V LED strips with TLC5940 with a possibility to PWM

Other Hardware LEDs and Multiplexing
5

Thanks! So it should look like this?

Wawa:
The outputs of a TLC5940 are not designed to drive n-channel mosfets.

You can indeed use a small-signal PNP transistor, to invert the logic, to drive the n-channel fet.
Emitter to VCC of the TLC (5volt).
Base to the TLC output (set to a low-ish current).
Collector to gate of the n-channel logic level mosfet.
~330ohm resistor from gate to ground.

Another option is to use PCA9685 breakout boards.
Leo..