3 Replies Latest reply on Feb 8, 2014 5:59 PM by MichaelF_56

    BCM20732 sleep current consumption ?

       

      Hello

       

       

      Can you please let me know the BCM20732 chipset’s sleep current consumption?

       

      Thank you

      Daniel

       

        • 1. Re: BCM20732 sleep current consumption ?
          MichaelF_56

          Roughly 24uA using the internal power management found inside the BCM20732.

           

          This will be lower using an external DC-DC.

          • 2. Re: BCM20732 sleep current consumption ?

            Hello

            Thanks for your kindly response.

             

            I think that the sleep current for 24uA is higher than other chipset, because I'm not sure that they are specified the Sleep mode current to under 0.4uA.


            is it possible? as I understand that this kind of value will be avaiable in the Deep sleep mode.

             

            Thank you

            Daniel 

            • 3. Re: BCM20732 sleep current consumption ?
              MichaelF_56

              The initial value provided was a liberal estimate.  The actual value is defined within the datasheet (see below) and varies within a nominal and maximum value.

               

              .4uA sounds more like a deep sleep current value?

              20732S-TRM-Power.png
              Within Deep Sleep, no state information is maintained. The device can however be awaken by GPIO/ Keyscan /Quadrature sensors.  Our module also includes the ability to wake after configured time; with the internal clock, this value is anywhere from 64mS to ~36 Hrs - with an external 32 KHz xtal, 128mS - ~144 Hrs is possible.