First I create a file with 1000 px x 1000 px 300 dpi. After this, I create a artboard with 1000x1000 px. Now I filled it with a color. I click file > export > .png and save it.
Now the problem, I open this exported image to photoshop and see, the pixel size is bigger (4167px x 4167px - 300 dpi) than I create on illustrator.
So, how can I export png files with the correct size, which I set up on illustrator?