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TPS922052: How to increase LED current rapidly in the analog dimming mode.

Part Number: TPS922052

Tool/software:

Hello guys,

One of my customers is considering using TPS922052 for their new products.

At this moment, they have the following questions.
Could you please give me your reply?

Q1.
They'd like to control LED brightness using ADIM/HD pin only.
Also they'd like to increase LED current rapidly like Figure 9-17 case in the device datasheet.
But the datasheet says on page 15 that the initial change takes approximately 5ms if VREF is 200 mV.
Could you please tell me how to increase LED current rapidly in the analog dimming mode?

Is one of solution to start ADIM/HD signal H/L pulse after 5ms from 1'st ADIM/HD pulse?

Q2.
Do you have any waveforms like Figure 9-17 that show the ADIM/HD signal, SW voltage, inductor current, and LED current?  

Your reply would be much appreciated.

Best regards,
Kazuya.