• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 63 subscribers
  • Views 64 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.

TPS4811-Q1: G2 pin state after a fault occurs

Juan Leyva
Prodigy 10 points
Part Number: TPS4811-Q1

Tool/software:

Hello,

We are designing around the TPS4811 controller and we have a question about what happens to the G2 pin (pre-charging FET driving pin) when a fault occurs. We understand the PU/PD pins turn off the main FET after a fault, but does the same occur to G2? We don't seem to find anything on the datasheet that indicates that G2 will turn off.

  • 0
    TI__Expert 7871 points

    Hi Juan,

    Yes, that is correct. Fault reporting and protections only affect G1, not G2. So, G2 will not turn off unless INP_G is turned off. BST_UVLO fault would have an impact on G2 though since CBST has to reach V(BST_UVLOR) in order for the gate driver to be activated. 

    Thanks,

    Rishika Patel