LM5069QUICK-CALC: LM5069 Design Calculator with FET Recommendation

Hank Lin

Intellectual 985 points

Part Number: LM5069QUICK-CALC
Other Parts Discussed in Thread: LM5069

Dear team,

I'm using the LM5069 Design Calculator with FET Recommendation for SOA calculation

However Some of the green cells in the calculator is invalid.

1. can't set the load type to constant current or resistive load proporely.

2. Is that normal to see the recommended TI's FETs with following #N/A marks? is that still workable for the equations in excel below

3. could you please also tell me what is power limit option in the system startup mode

Best regards,

Hank LIn

5 months ago

+1 Avishek Pal 4 months ago

TI__Mastermind 30915 points

Hi Hank,

I am not very familiar with this design calculator. Let me go through it and understand the concerns. Meanwhile, please use this below design calculator.

https://www.ti.com/tool/download/LM5069QUICK-CALC

+1 Hank Lin 4 months ago in reply to Avishek Pal

TI__Intellectual 985 points

Hi Avishek,

thank you for answering.

I also want to know why the calculation tool you provide is also not work properly.

the characters are not shown in most of the cells.

both calculation tools have some problem, do we have the internal workable version?

Best regards,

Hank Lin

+1 Avishek Pal 4 months ago in reply to Hank Lin

TI__Mastermind 30915 points

0 Hank Lin 4 months ago in reply to Avishek Pal

TI__Intellectual 985 points

Hi Avishek,

thanks for your help.

Best regards,

Hank Lin

Power management

Power management forum

LM5069QUICK-CALC: LM5069 Design Calculator with FET Recommendation