• State TI Thinks Resolved
  • Locked Locked
  • Replies 4 replies
  • Answers 1 answer
  • Subscribers 40 subscribers
  • Views 434 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.

TIDA-01605: Short circuit Detection & Two Level Turn Off For high side switch

Marvin Cantos
Expert 4235 points
Part Number: TIDA-01605
Other Parts Discussed in Thread: TIDA-010054

Hi Team, 

Good day. I am posting this inquiry on behalf of the customer.

"In TIDA-010054, there is the part "Short circuit Detection & Two Level Turn Off For high side switch". in TIDA-01605, the part "Short circuit Detection & Two Level Turn Off For high side switch" is not there. I was wondering why this part is not included in TIDA-01605, is it useless for that type of application?"

Please help to advise. Thank you for extending your support

Kind regards, 

Marvin 

  • 0
    TI__Mastermind 18120 points

    Hi Marvin,

    TIDA-01605 is designed to provide shot through protection, while meeting the size requirement. In case both high side and low side SC protections are needed. design from TIDA-010054 is the right implementation.

  • 0 in reply to Xun
    TI__Expert 4235 points

    Hi Xun, 

    Thank you for your prompt response. Please see the feedback from the customer.

    "How do I figure out that, in my application, I need protection on both the high and low sides?"

    Please help to advise. Thank you for extending your support

    Kind regards, 

    Marvin 

  • 0 in reply to Xun
    TI__Expert 4235 points

    Hi Xun, 

    Please see the update from our customer.

    Taking as reference:
    1. TIDRVT3A.PDF to TIDA-01605
    2. "TIDA-010054_GATE_DRIVER_CARDE2(001)_Sch.PDF" in TIDA-010054
    I have a question about the "Short detection and two-level shutdown for low side switch" and the "Short detection and two-level shutdown for high side switch" part. As far as I understand, only one part is present in one file while both are present in the other, due to PCB board space constraints.
    How do I understand that the other or indeed low side needs a "Short detection and two-level shutdown part"? Is there a specific reason why TIDA-01605 only protects the low side?
    have a good day"

    Please help to advise. Thank you for extending your support

    Kind regards, 

    Marvin 

  • 0 in reply to Marvin Cantos
    TI__Mastermind 18120 points

    Hi Marvin,

    Short circuit detection is needed for both high side and low side switches If there is a risk that the Middle point (SW node) can be shorted to either DC link+ or DC link -. In this case there is risk of shorting the power switch itself. If there is no such risk, detection is only needed for one side of the switch. In motor drive application middle points connection could use wire/cables, therefore there is risk of cable broken and could touch the DC link. In such case, short circuit protection on both sides is needed.