TPS548A28: overcurrent protection delay/response time

Hi,

Add one part TPS54J060, I saw the same description in DS.

I also need the delay/response time for TPS54J060.

Hi Jim, 
I'm not sure I am understanding your question. The overcurrent limit is checked by the inductor current every using cycle by cycle valley current detect. 
Once the current is too high, the low-side FET will stay on until the device current drops below the threshold which usually decreases the output voltage until under voltage protection is triggered. It will then wait for the 68 us, and 14 us for hiccup before trying to start up again. 

Best,

Ryan

Hi Ryan,

Sorry for confusing.

I mean do we have any spec define for the timing "t"?

trigger overcurrent limit => "t" => low-side FET will stay on

I need the "t" for TPS548A28 and TPS54J060.

Hi Ryan,

I also need TPS548B28, thanks.

Hi Jim, 

Please see figure 7.3 on page 20 of the TPS548A28 datasheet. I do not have any other information table besides that stated in the electrical characteristics and the text from the datasheet. May I ask what is the issue that needs to be resolved? 
Best,

Ryan