TPS92391: how to decrease the backlight turn-off timing

Hi, Henry

Our expert will reply you today.

Hi Sir,

Any update?

Hi Henry,

What is the register value of 0x04? Have they enabled the sloper?

It will be helpful if they can capture the LED current waveform.

BR

Patrick

Hi Sir,

What is the register value of 0x04? Have they enabled the sloper? => They used the default value, did not modify them.

The customer want to decrease the backlight turn-off timing to 10msec, how to modify the circuit or register value to meet this condition? If it cannot do it, could you please advise the correct device(output current minimum is 300mA)? Thanks!

Please refer to the below document for the LED current waveform.

TPS92391 waveform.docx

Hi Henry,

I will give you update later.