Rds(on) and gate drive — what they mean for the power stage
The CSD18513Q5A: The on-resistance is 5.3 mOhm at 19 A drain current with a 10 V gate drive. Gate charge is 61 nC at 10 V.
Package and thermal handling
The 8-PowerTDFN (VSONP 5x6) has an exposed drain pad on the bottom that must be soldered to a copper land on the PCB for thermal and electrical connection. Maximum power dissipation is 96 W at the case.
Active lifecycle — no LTB pressure
The CSD18513Q5A carries an Active lifecycle status as of the current record, with ROHS3 compliance. There is no last-time-buy notice or obsolescence risk on this part today. For a BOM line that needs a 40 V N-channel in a 5x6 PowerTDFN, this is a current-production choice — no date-code scavenging or surplus-channel dependency.