The TO-220-3 through-hole package (PG-TO220-3-1) suits single-sided heatsinking in offline power supplies, PFC stages, and flyback converters where the 800 V rating provides margin for universal mains input with reflected voltage transients.
Gate charge and switching — sizing the driver
Total gate charge is 85 nC at 10 V gate drive. For a 100 kHz switching frequency the average gate-drive current needed is 8.5 mA — well within the capability of a standard MOSFET driver IC, but the peak current during the Miller plateau determines the turn-on and turn-off times. The input capacitance is 1600 pF at 100 V drain-source, which together with the gate charge gives a figure of merit (Qg × Rds(on)) of about 38 nC·Ohm — typical for this generation of CoolMOS. The maximum gate-source voltage is ±20 V, so a 10 V drive rail is the recommended operating point for minimum Rds(on). The gate threshold voltage is 3.9 V maximum at 680 µA drain current, which means the device is fully enhanced with a standard 10 V gate signal but will not turn on with a 3.3 V logic-level drive.
Thermal budget and mounting
Maximum power dissipation is 156 W at case temperature, but the junction-to-case thermal resistance must be managed with a proper heatsink. Derate the 11 A current rating above 25°C case temperature per the datasheet curve; at 100°C case the continuous current typically drops to about 7 A. The through-hole TO-220-3 package (PG-TO220-3-1) allows a single screw-mount to a heatsink with thermal compound. The tab is the drain terminal, so the heatsink must be electrically isolated or connected to the drain node.
No official successor or second-source cross-reference is listed; the IPD50R950CEAUMA1 is a different CoolMOS variant (500 V, 950 mOhm, surface-mount DPAK) and is not a pin-compatible substitute for this TO-220 device.