• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 63 subscribers
  • Views 377 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.

LMR43610-Q1: PG hysteresis vs fault recovery condition

Shinji Tsuji
Genius 14139 points
Part Number: LMR43610-Q1

Hi team,

Could you advise the Fault recovery condition from Vout UV fault?

It is described in the datasheet as below

VPGDUV + VPGDHYST < VOUT <VPGDOV -VOGDHYST

VPGDUV = 89% to 94.2%

VPGDHYST = 1.1% to 5.9%

Is the worst case recovery voltage might be 94.2% + 5.9% = 100.1%?

Is there a way to understand the maximum recovery voltage? 

regards,

  • 0
    TI__Genius 10715 points

    Hello Tsuji-san,

    100.1% of VOUT represents the highest possible value of VOUT for which the PGOOD flag would reassert after the UV fault has occurred. 

    89%+1.1%=90.1% represents the lowest possible value of VOUT for which the PGOOD flag would reassert after the UV fault has occurred. 

    After the UV fault circuitry has been tripped, the LMR43610-Q1 will wait until the output voltage, VOUT, is between 90.1% to 100.1% of the desired output voltage to reassert the power good flag. 

    Regards,

    Harrison Overturf