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Original question:

The Principle on which mmWave Sensor is based

power consumption of mmwave sensors[power sourcing via AA or AAA battery]

RCReddy
Genius 3575 points
Other Parts Discussed in Thread: IWR6843, IWR1642, IWR1443

Hi Team@Ti,

        Wanted to know the power requirements for the IWR1642, IWR1443 and IWR6843.

although i could find low power tags in the description of those.

[1] Wanted to know can these operated using Alkaline batteries [series of AA or AAA batteries]?

[2] Can any one point to me, power consumption related calculations xls/sheet or any reference?

[3] when you say low power, what is the refernce based on which "low power" is claimed?

my requirement stand at

[A] 4 to 8 radar scans per second

[B] 2 or 3 AA battery powered up for 1 year [without battery replacement].

Thanks

  • 0
    TI__Mastermind 25835 points

    Hello,

    You could potentially operate with multiple AA kind of battery, However operating up for 1 year may not be possible.

    Below are the typical power numbers:

    For IWR1443 device Typical power numbers are:

    For IWR1642 device typical power numbers are : 

    For the IWR6843 power numbers would be in the similar ball park numbers. 

    Also you could try reducing the duty-cycle/ Frame rates, number of transmitter/receivers, number of samples, Chirps to reduce the power consumption.  

    Low power mode is related to sampling rate of receiver chain and in this case, it will also not going to reduce significantly.

    There is a power calculator you could refer to IWR1443:

    http://www.ti.com/lit/zip/swrm018

    For IWR1642 power calculator you could refer to below calculator. 

    http://www.ti.com/lit/zip/swrm019

    You could use the above calculators to arrive at power consumption and do a system level trade-offs. 

    Thanks and regards,

    CHETHAN KUMAR Y.B.