• State TI Thinks Resolved
  • Locked Locked
  • Replies 2 replies
  • Answers 1 answer
  • Subscribers 30 subscribers
  • Views 417 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.

DRV8714-Q1: DRV8714-Q1

Chanchal Gondane
Prodigy 30 points
Part Number: DRV8714-Q1

Hi,

I am using H-Bridge in PH/EN H-Bridge mode .

I did setting for High Impedance in bridge control 2  register but I could get that configuration at the output on pins 

I am getting High-Side Active Freewheel continuously at output side even though I set it for High-Impedance.

  • 0
    TI__Mastermind 44415 points

    Hi,

    Thank you for your question. 

    I am guessing your setting is correct. "HiZ state" means both external High side and low side FETs are OFF. However DRV have weak pull up path on SH pin while "HiZ state". As a result, your SHx shows "High" while "HiZ State".

    Since it is very weak pull up, if you add ~1Kohm from SHx to GND, SHx should go to 0V level instead of High.

    If your SHx still shows high level with 1Kohm external pull down, please let me know. You may be facing another situation.

    regards

    Shinya Morita

  • 0 in reply to Shinya Morita
    Prodigy 30 points

    Thanks shinya for the information

    This configuration is working now for HIZ-Impedance.