• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 62 subscribers
  • Views 212 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.

Original question:

bq25100/1, Optinal RC in Typical Application

BQ25101H: External RC circuit

Holly Gu
Intellectual 2750 points
Part Number: BQ25101H

Hi Team,

   I want learn more about the function of external RC circuit when charging current is small, why we need the external RC and how it works. DS mentioned for a more stable current, but it is not clear enough to me.

  And if customer need 10ma charge current without external RC, what's the risk?

  • 0
    TI__Guru 65796 points

    Hello

    The ISET circuit will sample the current at a low freq rate and this will result in ripple on output current.  The RC circuit will smooth this out to provide a cleaner single.

    Due to the very low current this is only seen at low charge currents.