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LM5009A: Current Limit

Oba
Genius 16175 points
Part Number: LM5009A

Hello,

I have some questions about current limit function of LM5009A.

1.
When entering current limit operation, will it be recovered to normal operation if the over current condition is removed?

2.
There is "Current limit response time = 350ns(typ)" parameter in the datasheet.
Is this parameter just a delay? or a kind of blanking time( over 350nsec over current condition period triggers this limit operation)?

Regards,
Oba  

  • +1
    TI__Mastermind 27040 points

    HI

    1. yes, it will recover from OCP statues

    2. yes, it is the delay time . for the blanking time, I am not very sure, because for blanking time, if over current statues disappeared in 350ns, high side will not turn off. the delay time means even the OCP disappeared in 350ns, the high side still be turned off.