LM5066I: LM5066I design with start load 4A

Oliver Lin

Part Number: LM5066I

Hi team,

our customer is using TI's LM5066I, I share the design tool to customer side. But it seems only the last thing can not meet customer requirement is start load for 4A. No matter how I adjust the value, just not working. please see the attachment. Or customer should change the MOSFET?

Cusomter_with 4A start_LM5066I_Design_Calculator_REV_C.xlsx

over 5 years ago

0 Rakesh over 5 years ago

TI__Guru** 105661 points

Hi Oliver,

You have picked the strongest FET available in the market. What is the type of load ? at what voltage the load becomes active ? As you see, load cannot be constant current of 4A at 0V.. so adjusting the "Load Turn-On Threshold" in cell F70 should help.

modified_Cusomter_with 4A start_LM5066I_Design_Calculator_REV_C.xlsx

BR, Rakesh