TPS7B86-Q1: PGADJ leak current

Shinji Tsuji

Genius 14139 points

Part Number: TPS7B86-Q1

Tool/software:

Hi team,

I would like to use high impedance resistor to minimize standby current for PGADJ.

Could you please advice how much is input leakage of PGADJ pin?

Is that same as Ilkg(PG) as below?

regards,

10 months ago

0 Shinji Tsuji 10 months ago

TI__Genius 14139 points

Hi team,

I made a typo on parts name.

I mean TPS7B6850-Q1, not TPS7B86-Q1.

Please answer for TPS7B6850-Q1.

regards,

0 Ishaan Shetye 10 months ago in reply to Shinji Tsuji

TI__Genius 13670 points

Hi Shanji- San,

I_pgadj is not a measured parameter unfortunately; however, as this is the input to an amp, the current will be in the nA range. Commonly currents in this range with have a maximum of 1 uA. You can apply the same principles as described in the the following application note to optimize the resistor divider: Optimizing Resistor Dividers at a Comparator (Rev. B)

Best Regards

Ishaan

0 Shinji Tsuji 10 months ago in reply to Ishaan Shetye

TI__Genius 14139 points

Hi Ishaan-san,

Thank you for your prompt response.

I would be very appreciated if you can measure or check design for simulation value about PGADJ current

to make sure the current is with in nA range.

regards,

0 Ishaan Shetye 10 months ago in reply to Shinji Tsuji

TI__Genius 13670 points

Hi Shinji-San,

I will put the request in for s simulation but please understand that our design verification team is very occupied right now and so it may take 2-3 weeks to get simulation results. I hope that is alright.

Best regards

0 Shinji Tsuji 10 months ago in reply to Ishaan Shetye

TI__Genius 14139 points

Hi Shetye-san,

Thank you very much.

regards,

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TPS7B86-Q1: PGADJ leak current