• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 64 subscribers
  • Views 229 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TPS2044: TPS2044A/TPS2044B Differences

Adam Shrey
Intellectual 290 points
Part Number: TPS2044

What are the main differences between the 3 versions of the TPS2044 family of chips (TPS2044/TPS2044A/TPS2044B)?  

They seem to all be for the same purpose and have similar specs.  Is there a reason why a TPS2044A would not work where a TPS2044B would?  

I'm primarily asking because I'm looking for alternate options due to chip shortages.  I designed and tested with the B version, but like many (many) TI parts, it's impossible to find right now.

Thanks

  • 0
    TI__Mastermind 18556 points

    Hi Adam，

    These three device are the old device, and the TPS2044B is the newest one among them, and I do not have a detail difference between them, but  I check their datasheet, and summary some point just like below show, hope it will help for you:

    1.High-side MOSFET switch resistance are different, TPS2044:135mohm, TPS2044A:80mohm, TPS2044B:70mohm.

    2.TPS2044B has a more short typical rise time. about 0.6ms, the other is 2.5 ms.

    3.TPS2044B has a smaller 'Max standby supply current', about 2uA, the other is 20uA.

    4.Ambient temperature range are different, TPS2044 and TPS2044B are -40℃~85℃, but TPS2044A is  0℃~85℃.

    5.TPS2044B use a only one charge pump, and TPS2044A and TPS2044 use about four charge pump, so TPS2044B may be cheaper.

    Best Regards,

    Kuno