SNVS615K January 2010 – February 2018 LM27402
PRODUCTION DATA.
The next set of equations are used to calculate the losses due to the low-side MOSFET.
PCND_LS is the conduction loss of the low-side MOSFET during the 1-D cycle and RDS(ON)_LS is its on-state resistance. PD is the deadtime power loss due to the body diode drop of the low-side MOSFET. Tdeadtime is the total deadtime. PRR is the reverse recovery charge power loss. QRR is the total reverse recovery charge typically specified in the MOSFET datasheet. PTOT_LS is the total power dissipation of the low-side MOSFET.