Hi Team,
My customer used the TPS3840DL45DBVR for the power-good application, and there has been an issue with the timing.
Please refer to the following:
Is the red circled part definitely there? Is there any way to remove it?
The RESET pin will cause misjudgment of the post-stage circuit during the VDD climbing process, resulting in an abnormal output of 12V-PG (CH4) as shown in the figure below.
CH2：RESET, CH3：VDD, CH4：12V-PG
U5 is the TPS3840 and the schematic and value are as follows.
The CN2=12V and reset voltage (pin 1) is 2.9V from the 12V.
Regards and thank you.
Rock
