• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 64 subscribers
  • Views 92 views
  • Users 0 members are here
Support feedback
Options
Options
Related

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.

BQ40Z80: Lowest resistance for shunt.

SAERO
Intellectual 361 points
Part Number: BQ40Z80

Hello,

As per datasheet, it is recommended to use shunt with 1 to 5mohm. Is it possible to use lower resistance ones than 1mohm? Currently I have 2pcs of 2ohm in parallel. I'm thinking of using 2pcs of 1ohm in parallel. 

Thank you! 

  • 0
    TI__Guru 57697 points

    Noise will increase at lower values of resistance. Therefore the recommended value for the published accuracy is 1mOhms. Values that are lower may be used but have not been characterized and will have a larger error than published.