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Question for TPS3808 VDD level

Joy Cho
Prodigy 200 points
Other Parts Discussed in Thread: TPS3808

Thanks for your warm support.

I have one question.

TPS3808 device datasheet VDD was wrote min 1.7V

But timing diagram is marked VDD 0.8V

What you mean for VDD 0.8V?

customer want to know for this reason.

Please explain for this reason

Thanks!

 

 

 

 

  • 0
    TI__Mastermind 41760 points

    Hello Joy,

    Welcome to the forums!

    The minimum voltage to power and operate the device is indeed 1.7V. However, as shown in the electrical characteristics of the datasheet, the minimum voltage to have a definite RESET (HIGH or LOW) is 0.8V. As you can see from the timing diagram, the RESET output is a gray area before Vdd < 0.8V because it can be either HIGH or LOW. This explained on page 8 of the datasheet.

    Regards,

    Darwin