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TIDA-01515: TIDA-01515

KC TSAI
Prodigy 20 points

Part Number: TIDA-01515

Hi team,

I am working on a similar application with same module.

My application is battery powered and I want to calculate battery consumption of each interface.

e.g. - temperature sensor, Flash, Print Module, WiFi Module etc.

Power=V*I

Current
|
| -----------
| --------- ---------
|--------
-+--------+--------+----------+--------+------------------------> Time

T0        T1         Print       Print    T4
Power-ON         Begin     End     Power-OFF

if there is a design note in which all the calculations is already done.

It will be a great reference for me to start with.

please let me know if there is any type of sheet which has battery calculations and life calculated.

  • 0
    TI__Mastermind 30000 points

    Hello,

    No there is no such document for this design. You would have to do the calculations by hand for each device you intend to connect in your system in their different power states.

  • 0 in reply to Adam Mc Gaffin
    Prodigy 20 points

    Hi, team,

    Current
    |
    |                         -----------
    |              ---------              ---------
    |----------
    -+--------+--------+----------+--------+------------------------> Time

    T0        T1         Print       Print    T4
    Power-ON         Begin     End     Power-OFF

    Current 01 * ( T1-T0 )

    Current 02 * ( T2 - T1 )

    Current 03 * ( T3 - T2 )

    Current 04 * ( T4 - T3 )

    Does TI have any design note describing this kind of power consumption calculation?

    Battery Pack is 1200mAh.

    How long will the battery run out? 100mAh remaining battery energy.

    From 1200mAh to 100mAh,How long does it take?

    Thank you for your suggestion.

    KCTsai

  • 0 in reply to KC TSAI
    TI__Mastermind 30000 points

    Hello,

    I am re-assigning your question to the battery charging team as they may have a better answer for you than I do.

  • 0 in reply to Adam Mc Gaffin
    TI__Guru**** 166286 points

    Hi KC,

    Battery capacity is measured in mA-hours.  Battery energy is battery voltage (3.6-3.7V) times capacity for W-hours. You can divide the power consumed (W) into the W-hours and get the number of hours from the battery.

    Regards,

    Jeff