Other Parts Discussed in Thread: LM5069
Tool/software:
Hi
I want to use TPS2482 to precharge 9mF with a steady state current limit of 6A at 24V. Because I want fast over-current response time, I need external soft start control. I am using a good SOA FET in a D2PAK package (PSMN4R8-100BSE). I have attached the calculator Excell sheets.
The TPS2482 calculator reports that:
Max slew rate: 0.03V/ms
Min slew rate: 0.10V/ms
However, the LM5069 calculator reports that:
Max slew rate: 0.13V/ms
Min slew rate: 0.10V/ms
I succeed getting a working design using LM5069. Why can I not get a working design using TPS2482? I must lower the output capacitance from 9mF to 2mF to get a working design with TPS2482. It seems weird that TPS2482 can not precharge even 3mF with the selected FET.
Kind regards
Bjørn
