TPS3852: Working procedure

JAYA RAO

Prodigy 90 points

Part Number: TPS3852

Please give step by step procedure of TPS3852

We are trying but unable to get reset from TPS3852g33drbr

All the sequences are fine

over 6 years ago

0 Chintan Parekh over 6 years ago

TI__Intellectual 1070 points

Hi
Can you provide details on what rail you are monitoring and If you can share a simple schematic.

Thanks
Chintan

0 JAYA RAO over 6 years ago in reply to Chintan Parekh

Prodigy 90 points

Hi Please find the schematic

0 JAYA RAO over 6 years ago in reply to JAYA RAO

Prodigy 90 points

Giving delay 8 seconds
pulse from controller we are giving every 49 seconds
when we stop pulse ... TPS3852 is not giving reset
RESET and WDO pins short also but no use
please provide any other sequence to do

0 JAYA RAO over 6 years ago in reply to Chintan Parekh

Prodigy 90 points

Hi we are expecting about 60 seconds delay.

0 JAYA RAO over 6 years ago in reply to Chintan Parekh

Prodigy 90 points

Hi chintan

In the schematic ADM6320 not there in the schematic

For referance designer kept it like that.

Please dont consider that

0 JAYA RAO over 6 years ago in reply to Chintan Parekh

Prodigy 90 points

Hi Chintan

Please discard the old one

please refer this attached one

0 Marcoo Z over 6 years ago in reply to JAYA RAO

TI__Mastermind 19580 points

Hi Jaya,

The schematic did not go through. Can you try attaching it again?

-Marcoo

0 JAYA RAO over 6 years ago in reply to Marcoo Z

Prodigy 90 points

Hi Marcoo

Please find the schematic

0 Marcoo Z over 6 years ago in reply to JAYA RAO

TI__Mastermind 19580 points

Hi Jaya,

The E2E forums do not show your picture. Can you add it as an attachment instead of a inline image?

-Marcoo

0 JAYA RAO over 6 years ago in reply to Marcoo Z

Prodigy 90 points

Hi Marcoo

Please find the attachment SCHEMATIC1 - PAGE1.pdf SCHEMATIC1 - PAGE1.pdf

-Watchdog schematic.docx

Jay

0 Marcoo Z over 6 years ago in reply to JAYA RAO

TI__Mastermind 19580 points

Hi Jaya,

Thank you for the schematic.
Can you make a couple of changes.
Pin 2. The watch dog reset timeout is set to be over 65s with a 1uF cap. Can you lower the value according to equation 1 on the datasheet?
Pin 5 Can you check if the voltage is above VIH? If not, can you reduce the value of the pull up?

-Marcoo

Power management

Power management forum

TPS3852: Working procedure