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IWR6843AOP: LP87524JRNFRQ1 Supply Issue

GaryC
Expert 3305 points
Part Number: IWR6843AOP

We use LP87524JRNFRQ1 in IWR6843AOP design. But the LP87524JRNFRQ1 has supply issue now. We find the LP87524TRNFRQ1 have enough inventory. May I know the LP87524TRNFRQ1 whether have any design issue in IWR6843AOP?

BR, Gary

  • 0
    TI__Mastermind 30715 points

    Hello,

    No, it would not easily work. the LP87524J is programmed to set the correct output voltages for the radar by default, so there is no software configuration of the PMIC needed.

    The LP87524T does not have the same default programming, so the output voltage of each buck would need to be programmed to the correct value for the radar each time you power it on. This would mean you would need to have a host processor that could configure the PMIC via I2C before you could power on the radar. It would not work in a system where there is not a host processor that could configure the PMIC before powering on the radar.

    Regards,

    Adrian