Using the PWM model, drive that directly with 555, save money, the circuit is simple, not much you make communication is troublesome. To drive the incandescent lamp, it is better to use the thyristor directly, and the resistance volume controls the Angle trigger. The circuit is a big one. Move!
You want to do it directly with a chip? I'll tell you, there's no such chip...
It is recommended to use the SE8510 PWM drive chip, the range 1-100, the original side control, the peripheral parts are small, the constant flow precision is high.
