TPS61325: Super cap Charging Time

Sepeedah Zadeh

Part Number: TPS61325

Hello team,

Is there a way to estimate the super cap charging time with the TPS61325? I see figures 77-79 that show cap charging behavior for the specific example, but still it is not mentioned what size supercap has been used. If there is a formula to use to estimate this charge time, it will be very helpful.

Thanks

over 5 years ago

0 Sean Zhou over 5 years ago

TI__Mastermind 22745 points

Hi Speedah,

There is no strict specs for the size of super cap since we mainly care the value. And for charing time, it mainly use C*V=I*T to estimate the charging time.

Regards

Sean

0 Sepeedah Zadeh over 5 years ago in reply to Sean Zhou

TI__Intellectual 2920 points

Thank you Sean. Can you please help me understand how to determine the value of the capacitor?

0 Sean Zhou over 5 years ago in reply to Sepeedah Zadeh

TI__Mastermind 22745 points

Hi Sepeedah,

That depends on the detail spec and the output current and last time.

Regards

Sean

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TPS61325: Super cap Charging Time