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TPS6287B10: TPS6287B10 Remote Sense Circuit

Willy Zhu

Prodigy 20 points

Part Number: TPS6287B10
Other Parts Discussed in Thread: TPS62867, TPS62870

Tool/software:

Please help me check TPS6287B10/TPS628691A remote sense circuit, Thanks!

Power from connector to base board.

0 Chris Glaser 6 months ago

TI__Guru**** 150650 points

Hi,

Yes, the TPS6287B10 comes dedicated differential remote sense inputs which should be routed to the lowest impedance point on the output bus. This is typically in the middle of the bank of capacitors at the load.

The TPS62891A does not contain remote sense. The VOS pin should NOT be used for this, since it is a very sensitive input that must be connected locally to the IC. This is further explained here: https://www.ti.com/lit/an/slyt531/slyt531.pdf With the I2C, you can adjust the output voltage as needed to overcome any IR drop.

Chris

0 Willy Zhu 6 months ago in reply to Chris Glaser

Prodigy 20 points

Hi Chris,

Thanks! But I view some schematics also use single-ended trace?

0 Chris Glaser 6 months ago in reply to Willy Zhu

TI__Guru**** 150650 points

Hi,

Each device is different. I'm not sure what your question is about that PMIC.

Chris

0 Willy Zhu 6 months ago in reply to Chris Glaser

Prodigy 20 points

Hi Chris,

Do you have any device recommend for my application? Thanks.

0 Chris Glaser 6 months ago in reply to Willy Zhu

TI__Guru**** 150650 points

What do you need in your application? Vin, Vout, Iout, features (remote sense?)?

What type of device are you making?

Thanks,

Chris

0 Willy Zhu 6 months ago in reply to Chris Glaser

Prodigy 20 points

Hi Chris,

Follow TPS628691A , I want single-end trace feedback mode.

0 Chris Glaser 6 months ago in reply to Willy Zhu

TI__Guru**** 150650 points

Hi,

If you need I2C, then TPS62870 or another TPS6287B10 are good choices. Without I2C, the TPS62867 is a good choice.

Chris