TLV803EA29EVM: EN Pin check

Pini Cohen

Part Number: TLV803EA29EVM
Other Parts Discussed in Thread: TLV803E

Hello TI Team,

I implemented in my design the TLV803EA29DPWR supervisor as EN control for LDO, as follow:

PCB arrived and I can see that even if the R_BAT voltage drops beneath 2.9V (that is the threshold of the supervisor), EN Pin remains High.

Can you please check if something is missing here?

over 3 years ago

0 Ben C over 3 years ago

TI__Mastermind 42475 points

Hi Pini,

Would you have any scope photos showing R_BAT+, R_LDO_EN, and R_VDD33? Have you tried bringing R_BAT lower than 2.9V? Does the output of the TLV803E trigger?

Ben

0 Ben C over 3 years ago in reply to Ben C

TI__Mastermind 42475 points

Hi Pini,

Are there any updates?

Ben

0 Ben C over 3 years ago in reply to Ben C

TI__Mastermind 42475 points

Hi Pini,

If I have answered your question, please click on "resolved" to close the thread. Thanks!

Ben

Because of the holidays, TI E2E™ design support forum responses will be delayed from Dec. 25 through Jan. 2. Thank you for your patience.

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TLV803EA29EVM: EN Pin check