TPS2554: pin floating and grounding questions

George Chen

Intellectual 2175 points

Part Number: TPS2554
Other Parts Discussed in Thread: TPS2553

Team,

If the applicaiton only need one current limit threshold,

Is it possible to have the ILIM_SEL pin floating?

Is it possible to have ILIM0 or ILIM1 floating or grounding?

Thank you.

over 7 years ago

0 Michael Tan over 7 years ago

TI__Expert 8420 points

HI ,
What is your application requirement ?
If you only need one current limit thershold you can choose the tps2553 to do that.
ILIM_SEL is logicl contrl , it is recommend to connect HI or LO voltage to avoide noise .

0 George Chen over 7 years ago in reply to Michael Tan

TI__Intellectual 2175 points

TPS2553 current rating is not high enough.
So how about the ILIM0 and ILIM1? If we only use one current limit, can we make the other one floating or to the ground?

0 Michael Tan over 7 years ago in reply to George Chen

TI__Expert 8420 points

Hi ,
The ILIMO and ILIM1 can connect to ground if you don't use .

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TPS2554: pin floating and grounding questions