MP6540H: How to calculate power dissipation

xyamada · March 9, 2022, 9:34am

Hi, there.

Motor drivers including MOSFETs heat up by switching to some degree while using on applications.
How can I calculate the power dissipation for PCB design in advance?

Regards,
Kunihiro

vinh.tran · May 16, 2022, 7:27pm

Hello xyamada,

I apologize for the delay, I will try to get a response back to you in 2 days.

Thank you,
Vinh Tran

mpsnow.bryan · May 17, 2022, 10:54pm

Hi xyamada,

Please see on Pg. 5 of the datasheet:

dtomic.stype · June 14, 2022, 10:49am

Is there a way to calculate or estimate switching losses, i.e. losses due to parasitic capacitances of the power-MOSFETs in the output stage?
Only parameter given in the datasheet is Rds_on, that is only part of the total losses.