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TPL5111: USING NANO POWER TIMER WITH BATTERY CHARGER CIRCUIT

Prodigy 70 points

Replies: 2

Views: 59

Part Number: TPL5111

Hi, 

As I know without battery charging IC, how to use nano power timer IC - TPL5111. 

in my circuit I have placed nano power timer IC after battery charger IC - but in that case the intension to use nano power such as 30nA will not be fulfilled as battery charger IC (BQ25611D) consuming 9.5uA QUIECENT current - which is very larger than 30nA.

 

Can I put green highlighted circle block - before the battery charging IC ? in that case I have only one confusion - that when I will plug the charger , will my current be flown from gate/load switch's vout to vin and will charge my battery ? can I use load switch in that case or I have to use MOSFET as a switch ? can any expert please help ?

  • Hello,

    We are looking into your question and will reply by 5/26

    Regards

    Liam Keese

    Clock and Timing Systems & Applications


    To view training videos on Clock and Timing Solutions please visit  TI Precision Labs ​​​​

    More information Clock and Timing System products: http://www.ti.com/clock-and-timing/overview.html

  • Thanks for sharing the information. You could place the circled block before the battery charging IC, but this means that the battery charging circuit may be power-cycled, meaning you would need to reinitialize the battery charger every time it restarts.

    I can help you with TPL5111 questions, but I'm not an expert on the other devices. For support with BQ25611 or the load switch, please submit a new post to the appropriate forum. It seems you need a load switch with reverse current protection

    Kind regards,
    Lane

    ____________________________________________________________________________________

    More information Clock and Timing System products: http://www.ti.com/clock-and-timing/overview.html

    Learn more about clocking fundamentals by watching the TI Precision Labs: https://training.ti.com/ti-precision-labs-clocks-and-timing

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