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TPS65911: TPS659113 EOLA and finding for recommended replacement

Alder Lim
Prodigy 80 points
Part Number: TPS65911


Currently we are using TPS659113 and we received EOLA notice. I came across to TPS659119, however i find differences that TPS659113 has BACKUP Management block which TPS659119 do not have and can not find BACKUP Management information in datasheet.

What is BACKUP Management mean in TPS659113 ?

TPS659119 accept both external frequencies of 16.384MHz and 32KHz, which frequencies is recommended for design in term on the focus of accuracy?

What is the advantages and disadvantages using external 16.384MHz crystal over 32KHz crystal?

What is the advantages and disadvantages using external 32KHz crystal over 16.384MHz crystal?

Thanks in advance,

  • 0
    TI__Mastermind 49891 points

    Hi, Alder,

      Both TPS659113A2ZRC and TPS659113A2ZRCR are among the low volume devices that will not go through the conversion process to the nFBGA packaging. It will EOL and the PCN should give more information on the lifetime buy period.

      The TPS6591133A2ZRC is what we are suggesting customers to switch to instead if needed.

      That part is higher volume and WILL Be converting to nFBGA when the new substrates are qualified and ready. That will mean that the part number will change (new package means new part number) – but the device itself will remain available. For TPS6591133A2ZRC we are expecting it to RTM by late September 2020. Based on a September date for conversion, a PCN would be sent late September 2020 offering a Last Time Buy until March 2021 and Last Ship Date of March 2022 for TPS6591133A2ZRC.

       This nFBGA package offers datasheet-equivalent electrical performance to MicroStar BGA and It is also board layout/footprint equivalent to MicroStar. The nFBGA provides the same X and Y dimensions as MicroStar, in addition to footprint and pinout to ensure pin-to-pin compatibility. The Z package dimensions (thickness) may be slightly thinner in some cases. For more details, check out this nFBGA application note on ti.com.

      Hope this helps, let me know if you have any other questions. 

  • 0 in reply to Phil Yi
    Prodigy 80 points

    Hi Phil,


    Thanks for the recommendation.

    I take a look for TPS6591133A2ZRC, it is similar family to my existing part TPS659113A2ZRC.

    Correct me if i am wrong, the different of those 2 parts is the default setting and i notice the only different is GPIO 0 and GPIO 7, all other supply rails and RTC will be the same.

    Thanks again,

     

  • 0 in reply to Alder Lim
    TI__Mastermind 49891 points

      Yes; from TPS659113 to TPS6591133 is just a GPIO0 and GPIO7 connection swap and could be done now with existing package.

      From TPS6591133 Microstar BGA package to TPS6591133 nFBGA package is just a BOM change, no hardware change necessary unless there is a concern about Z height as that is still TBD if there will be a height difference.

  • 0 in reply to Phil Yi
    Prodigy 80 points

    Thanks Phil.