TPS82130: Instant Enable

Kuramochi Tadahiko

Guru 28715 points

Part Number: TPS82130

Hi,

Does the TPS82130 allow to input instant Enable as below?

Yellow: VIN, Green: EN

EN don't over absolute voltage (VI+0.3V).

Another vendor's IC seems to be restricted such above EN.

Best Regards,

Kuramochi

over 7 years ago

0 Chris Glaser over 7 years ago

TI__Guru**** 151310 points

Hi Kuramochi-san,

Your question is not completely clear.

Yes, you can connect EN to Vin. No, you cannot take EN above Vin.

0 Kuramochi Tadahiko over 7 years ago in reply to Chris Glaser

Guru 28715 points

Glaser-san,

Thank you for your reply and sorry my uncertain explaination.

My customer worry that the device works incorrectly by instant EN as above because another vender's IC occurs the problem.
(I don't still know the problem in detail.)

Please let me know if you have ever heard such the problem regarding the TPS82130.

Best Regards,
Kuramochi

0 Chris Glaser over 7 years ago in reply to Kuramochi Tadahiko

TI__Guru**** 151310 points

Hi Kuramochi-san,

No, I have not seen any issues with the above waveform. EN does not go above Vin. It seems to briefly try and go high, but then goes back down. This is ok.

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TPS82130: Instant Enable