PMP20345: Dimmable Exit Light Design

Part Number:PMP20345

Hi,

One of my customer wants to work on a new Dimmable Exit Light Design. They are driving a string of LED at constant current.

The requirement as follow:

Input:  AC 230V

Output:  48V 180mA and 360mA (2 designs)

I checked and found this reference design (PMP20345), which is quite close to the requirement, except dimming control.

Is there an easy way to add in dimming control to this reference design ?

Or is there any other better solution to achieve the above requirement ?

Thanks and Regards,

CM.