• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 31 subscribers
  • Views 282 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.

TMCS1126: Overcurrent detection range

JH Shin
Guru 11270 points
Part Number: TMCS1126


Tool/software:

Hello,

According to the datasheet, the MEASUREMEMT RANGE of TMCS1126C5A is -1.5A to 19.1A when Vs=3.3V.

What is the range for setting overcurrent detection using the Voc pin?

Is it possible to set 500mA using TMCS1126C5A so that when current consumption exceeds 500mA, Voc pin is output?

Thank you.

JH

  • 0
    TI__Mastermind 23075 points

    Dear JH, 

    Thanks for using E2E.

    Unfortunately I don't believe this overcurrent setting would be possible. As per the datasheet, the equation used to set the overcurrent point on the device is given in section 8 as 

    Applying this equation to the 150mV/A sensitivity of the C5A variant, we derive that the needed VOC voltage for this OC set point would be 30mV, but this falls outside of the valid range for the VOC set point shown in the EC table: