Page 5 of datasheet explains the pin functions. Perhaps you can show us your requirements, (1) 1W LED x 9 = 9W, (2) 300 mA, 3V, (3) Switching frequency 980 Hz, ... You might like to give us the following: (4) Link to you power LED, (5) You idea of dimming and over voltage requirement/spec and which page on datasheet you are following, which tutorial you are following for the 980kHz , forward current setting etc. Perhaps you can split your big question into a couple of smaller questions, and start your suggestion, say, first on (a) Current setting, (b) Frequency selection, etc.

Sure, I have edited the question. Could you please help me with the additional information which I have provided in the edited question?

Perhaps you can also list the newbies tutorials explaining engineering trade offs and cost benefit analysis in LED drivers. I would suggest at least this short intro: components101.com/diodes/1-watt-led

Sure, thank you. Could you help me with my questions?

You NiChia LED is for back lit. What sort of back lit is it for?

Please let me know if there are terms in the Components 101 tutorial you don't understand, and the reasons for using current drivers and negative feedback etc. Perhaps you don't need to use the boost LED driver you suggested. You need to give a reason of choosing that particular driver, among the perhaps tens of drivers.

Me lazy hobbyist have been using simple drivers of package SOT23 5 or 6 pins and I do my own SMD reflow soldering. Do you already have samples of assembled modules?

The LED is for a 3.1inch TFT. I was given this Driver IC to design a boost. But I just need some sort of guidance to design this

Ah yes, so it is for a LCD panel. Do you have any commercial products your are do reverse engineering, and they are using the driver you are copycating?

So let us carrying on chatting here. Locking down lunch for me now. See you later.

hi

Hi there.

could you help me with the answers for my questions

I think you need to build up your knowledge and skills first. You might like to tell me if you know the following: (1) Ohm's Law, (2) How to use Arduino to blink a LED, (3) How to play with LCD1602 or similar with black lit. You might also like to let me know if it is a College level project, and you only have two weeks to complete the project.