TPS1663: PSPICE Simulation

Hi Rakesh,

Thanks for your reply.

My simulation output only retry once only and it keep output after that.

Is this correct behavior?

And does it will stop output after sometime?

My MODE is connect to GND.

Thanks.

Best regards,

Syukri

Hi Rakesh,

Thanks for the simulation model.

I have test it and have question as below.

My current limit is set at 4.2A.

So, my testing is vary the load to see the behavior.

From the result:-

When Rload = 5.5 ohm, suppose the efuse should break around 1.25s and retry.

But still continue to output, except the FLT will toggle.

Do you know why?

Compare to when Rload = 4 ohm, the efuse will break and auto retry.

Here are my schematic.

Best regards,

Syukri

Hi Syukri,

Let me check and get back to you in couple of days.

Best Regards, 

Rakesh

Hi Syukri,

I have verified at my end. The device should turn-off with max timeout period of 162ms in current limit mode.

Seems there is minor glitch in the model if started-up in current limiting mode. Thanks for bringing this to our notice. We would need sometime to rework on the model. In the meanwhile, can you let me know if you have any other questions on the device functionality.

Best Regards, Rakesh

Hi Rakesh,

So far I don't have other question.

Will wait for the new model revision.

Thanks.

Best regards,

Syukri