STMicroelectronics’ is aiming its M9 and DM9 n-channel super-junction multi-drain mosfets at switched-mode power supplies in applications from data centre servers and 5G infrastructure to flat-panel televisions. The first devices in these families are the 650V 45mΩ STP65N045M9 and the 600V  43mΩ STP60N043DM9. Gate charge is typically 80nC at 400V drain voltage so “these devices have the best RDS(on)max ...

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