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LM5067: Considering when design LM5067 Application

Part Number: LM5067
Other Parts Discussed in Thread: LM5069


I am designing the LM5067 Application to limit the Inrush Current for my 48V Power Supply. The schematic as above. Design parameters as below:

+ Vin = 48V

+ I Limit = 2A

+ UVLO = 40V and OVLO = 60V

I consider 2 problem:

+ First: The circuit can work with +48V applied to VEE and GND applied to VCC via R3045? Because in the LM5607 datasheet, they used -48V to VEE and GND applied to VCC.

+ Second: The insertion time as my calculated in my circuit is 220ms with C_timer is 0.33uF. But in the case I used the TI Tool (, the value of Insertion Time is 1440ms and C_timer is 2.2uF, with the same design parameter. I think my circuit is wrong at some points but I don't know why...

Please help me to clearly understand 2 issues. Thank for any advances.