LM5012: Simulation issues

Anna

Part Number: LM5012

Hi Dear,

Our Customer is using LM5012 for simulation, and the results show that the power consumption on the output Schottky diode is 1.37W, as shown in the figure

How is 1.37W calculated?

over 2 years ago

0 Aurora Tie over 2 years ago

TI__Genius 16740 points

Hi Anna,

The power loss of diode is Ploss_D=Vd*Io*(1-D). Vd is the diode conduction voltage. Io is output current. D is duty cycle. Hope this can help you. Thanks.

Aurora.

0 Anna over 2 years ago in reply to Aurora Tie

Intellectual 995 points

Hi Aurora,

From the simulation results, it can be seen that the power consumption of the diode is relatively high. If we want to reduce the power consumption of the diode, are there any other improvement methods? Can we parallel connect another diode of the same specification

0 Aurora Tie over 2 years ago in reply to Anna

TI__Genius 16740 points

Hi Anna,

It is recommended to choose a diode with a smaller turn-on voltage, or increase the duty cycle. Thanks.

Aurora

0 Anna over 2 years ago in reply to Aurora Tie

Intellectual 995 points

Hi Dears,

Thank you. I will communicate with customer again to obtain more details ,and then provide feedback to you. Thank you

0 Aurora Tie over 2 years ago in reply to Anna

TI__Genius 16740 points

Hi Anna,

OK. Waiting for your reply. Thanks.

Aurora

0 Aurora Tie over 2 years ago

TI__Genius 16740 points

Hi,

I will close this thread due to no reply for a long time. If you have other questions in the future, you can ask them again in E2E. Thanks.

Aurora

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LM5012: Simulation issues