TPS3710 Sense input

Terry Wu

Expert 1680 points

Other Parts Discussed in Thread: TPS3710

Hello Sirs,

May I know if tps3710 sense pin left NC ( without resistor divider )

What's output signal level ( still have pull up resistor ) ?

Many thanks !

over 7 years ago

0 JCHK over 7 years ago

TI__Mastermind 43580 points

Hello,

If the NC pin is left floating, the output could be either high or low. There is an ESD structure on this pin which does have some leakage. Over process and temperature the strength of the effective pull-up or pull-down as a result of the leakage can change the status of the output.

If you mean you want to drive it directly the nominal threshold is 0.4V. In this usage mode, the output would follow the input. So in this mode it would simply be functioning as a logic level shifter.

I hope this answers your question.

Regards,

0 Terry Wu over 7 years ago in reply to JCHK

Expert 1680 points

Hello John,
You mean the output state should be unknown,right ? When the Sense pin left "No Connection"
Many thanks your reply !

0 JCHK over 7 years ago in reply to Terry Wu

TI__Mastermind 43580 points

HI Terry,

I can not find a reference to 450K in the TPS3710 datasheet. Do you have the latest datasheet? www.ti.com/.../TPS3710 I am wondering if you have an earlier version.

Thanks,

0 Terry Wu over 7 years ago in reply to JCHK

Expert 1680 points

Sorry John that I put wrong message. Pls ignore my last reply.
I re-post question again. TKS !

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TPS3710 Sense input