Need suggestion to select CC LCD backlight driver IC with dim function

Hi,

I have a graphical LCD display with white LED back light with the electrical specification of 3.5V typ and drive current from 128mA to 160mA max. The supply voltage is 24V.

I'm looking for a back light LED driver IC with current limiting (adjustable to 128mA and limited to not exceed 160mA for my case) and a dim option. I found one IC PT4115 which is matching my requirement, but its not giving proper output.

Please suggest any IC chip from TI for my requirement

Regards

Udhay