P-channel power switch for 12V and 24V automotive loads
It is specified for a drain-source voltage of 40 V and a continuous drain current of 85 A at 25 °C case temperature, making it a candidate for reverse battery protection, load switching, and motor bridge circuits in 12 V and 24 V vehicle electrical systems. The maximum on-resistance is 7.3 mOhm at a gate drive of 10 V and 85 A drain current. The 88 W power dissipation rating at the case must handle the conduction loss with adequate heatsinking.
The input capacitance is 6085 pF at 25 V drain-source. The threshold voltage is specified at 4 V maximum with a drain current of 150 µA. The 10 V drive level used for the Rds(on) spec is the practical operating point for minimum conduction loss.
The package is surface-mount compatible with standard reflow profiles, but the tab's large thermal mass means the solder joint on the tab may need a longer soak time to reach reflow temperature uniformly.