This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
Hi Sir,
Our customer used the TPS61165 for panel Backlighting,
If the system is go to S3/S4/S5 Short time,then fast Wake up.
Maybe is under 3 second Wake up.
Thery are found out TPS61165 can't use the Dimming function.
But we can see the input VIN/CTRL are function normal.
If the system go to S3/S4/S5 over 3~5minutes , then wake up system the TPS61165 Function work is OK.
the excell is our Pass & Fail waveform for your reference.
the customer schematic is copy TI datasheet.
Do you have any suggest for this case?
What is the PWM frequency?
Have you tried other frequency to see if it is improved?
Did you tried other chips and see the same phenomenon ?