(1)Could you request to confirm the circuit design of TPS25947L for 3.3V.
I have some question about the circuit for 3.3V. The condition are current "limit"= 2A, "Itimer" = 20ms. Is it OK, when the circuit of this specification the constant shown in the attached file?
Q1) Is the circuit design of "pdf" for specification(above) OK?
(2) "Latching operation" does not work
I would like to use an overcurrent protection function using "Itimer". Especially, I would like to use it instead of a fuse by "Latching Operation(Controled "Itimer")". I purchased the Evaluation Board of TPS25947 and experimented with the circuit of the attached file of (1). but it does not trip by "latching operation" at the time of overcurrent. And when the current is overcurrent, the voltage of the "Iterer" terminal does not change.
I think that It has the element in question. Short-circuit current does not flow up to the IFM current determined by the IFM resistor. This will clip the current at about 1A (50%). Therefore, when the load is short-circuited, the "Itimer" voltage (2.6V) does not start to drop, and the "latch operation" does not occur.
Q2) Please tell me the problem that the circuit of (1) does nTPS259474L.pdfot works the "latch operation".