Part Number: TPS25940
Hello experts,
TPS25940 has over voltage protection,
By Datasheet of TPS25940, Is this a Over Voltgae Detect Operation Waveform data?
Could you tell me the question below?
1)Which timing eFUSE can detect the OVP detect?
2)How many time from over time deteced to output OFF?
Best regards,
Masaharu UCHIYAMA
Hi Sailendra
Thank you for your answer.
I have one more question below.
”The minimum and maximum value is not shown in datasheet”
Is there a possibility that more than 3milliseconds to turn OFF after OVP detection?
Because of this data in datasheet, Overvoltage detect delay seem to be more than 3milliseconds.
Best Regards,
Masaharu
Hi Sailendra
Thank you for your reply.
"Can you share me the schematic once"
My question is about Datasheet spec below.(waveform data of 30 pages, Figure 60. Overvoltage Shutdown)
Is there a possibility that more than 3milliseconds to turn OFF after OVP detection?
Best Regards,
Masaharu
Hi Masaharu,
Here you can see,in the application example of datasheet , they have taken OVP set point is 16.5V and the measurement of 2 micro seconds is when the VIN touches the set point which is this case is 16.5V .
So the way you are measuring the OVP setting time itself is wrong. it should be taken when the VIN crosses the 16.5V
Is there a possibility that more than 3milliseconds to turn OFF after OVP detection?
So , answering your question , no there is no such possibility ,we can assure that it typically takes 2 micro seconds and maximum can be in orders of micro seconds only
Best Regards,
Sailendra
