40 V dual N-channel — the automotive workhorse
It is AEC-Q101 qualified and carries an automotive grade, making it a candidate for under-hood power switching, DC/DC converters, and motor drive bridges in 12 V and 24 V vehicle electrical systems.
8.2 mOhm Rds(on) — conduction loss budget
At a 20 A load, the conduction loss per MOSFET is under 3.3 W at 25°C junction, but the actual die temperature will be higher in the 8-PowerVDFN package — the 54 W package limit gives plenty of headroom for a properly laid-out board with adequate copper area on the drain pads. For 5 V gate drive, expect a higher on-resistance — the datasheet curve shows the typical value, but the max is only specified at 10 V.
Thermal and switching — what the numbers mean
Input capacitance Ciss is 3050 pF max at 25 V drain — this is moderate for a dual 40 V MOSFET. The 39 nC total gate charge at 10 V means a gate driver needs to source about 390 mA to switch in 100 ns.
PG-TDSON-8-4 — footprint and reflow
The 8-PowerVDFN package (PG-TDSON-8-4) is a surface-mount, dual-drain exposed-pad package. Check the MSL rating before the reflow profile — a high MSL level means a bake step before the oven to avoid popcorning. The 0.50 mm pitch leads are fine-pitch but manageable with standard solder paste stencil apertures.