TPS3808G01DBVEVM: TPS3808G01MDBVTEP

Bodo Scheubel

Hello,

i am using the IC TPS3808G01MDBVTEP. At verification power-up i noted a 300µs low level glich on pin CT whenn VCC reaches nearly 5V.

SNS is adjusted to be triggerd at 4,46V. i assume this glich happens wenn VCC reaches this threshold. CT is tied to VCC via 64kohm resistor.

Is this a normal behaviour? I didnt found any details in the datasheet. All other functions are working according to design.

over 1 year ago

0 Jesse Villanueva over 1 year ago

TI__Genius 14750 points

Hi Bodo,

Thank you for your question, I will be happy to help. Are you able to also provide the schematic as well?

Jesse

+1 Bodo Scheubel over 1 year ago in reply to Jesse Villanueva

Prodigy 30 points

Hello,

schematic attached.

0 Jesse Villanueva over 1 year ago in reply to Bodo Scheubel

TI__Genius 14750 points

Hi Bodo,

Yes the 300μs pulse that you are seeing is an expected output. The rising edge of that pulse is the starts of the countdown for the delay timing of the Reset pin.

Jesse

0 Bodo Scheubel over 1 year ago in reply to Jesse Villanueva

Prodigy 30 points

Hey Jesse,

thanks for the fast response and solutionanswer.

Because of the Thanksgiving holiday in the U.S., TI E2E™ design support forum responses may be delayed from November 25 through December 2. Thank you for your patience.

Power management

Power management forum

TPS3808G01DBVEVM: TPS3808G01MDBVTEP