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TPS54824: Dead Time ; Efficiency calculation including Bottom FET switching for TPS54824

Part Number: TPS54824
Other Parts Discussed in Thread: TPS54821,

Per Equation 10 at this link: http://www.ti.com/lit/an/slyt664/slyt664.pdf

 

I would like to roughly budget the power lost in the bottom FET body diode in the TPS54824 

Just first order values are fine.

For TPS54821 I have: For your reference, the typical dead time is 18 ns and voltage drop the diode is 0.7 V. So in your equation, VF=0.7, tDLYUpLo=tDLYLoUp=18n.

Stu