Hi Team,
I would like to use TPS55165-Q1 to supply my electronic board with range Voltage 10-36V.
The question is the following:
I undestand that to enable the DC/DC, I have to set IGN high and to avoid the event shutdown I can set IGN_PWRL immediately after so that in case of shutdown the DC/DC remain active (keep-alive).
The datsheet indicates:
"This function allows an external MCUto keepTPS5516s-Q1device on even after the IGN pin goes low" but whe when you say that the device is on, the devices connect to DC/DC can be supplied?
In particular, the Output Current can be supplied? If yes, whit is the value of current guaranteed?
In Low-Power the max current is 50mA so I ask if also in this condition can be a value minimum of output current.
If I set power-latch function (IGN_PWRL high) is there an advantage in terms of minimum chip absorption compared to Low-Power Mode?
I think if there wasn't an advantage in terms of energy optimization in terms of absorbed current compared to Low-Power,I don't understand why you should use the function of power-latch-function.
Or another interpretation would be: in the event of Shutdown of power Supply , the device relmain active being able however to supply current at the output (as a kind of back-up command).
But in this case the function is more usufueI only shutdown event (temporary) because the device cannot remain active if Power Supply was inactive for some time.
I apologize if I overlooked any details in case I would like to fully understand.
Please,let me Know.Thanks.
Best Regards.