60 V / 80 A N-channel — the automotive power switch envelope
The IPB80N06S407ATMA2: The 60 V drain-source and 80 A continuous drain define its primary application envelope: high-current switching in automotive power trains. The device carries AEC-Q101 qualification and an Automotive grade designation, meaning it has passed the stress qualification tests required for production automotive programs. This is not a commercial or industrial-grade part — it is released for under-hood and chassis-domain applications where reliability screening is mandatory.
Gate drive and switching — what the 56 nC Qg means for the driver
The gate charge is 56 nC maximum at 10 V gate drive. For a given switching frequency, the average gate drive current is Qg × fsw. At 20 kHz, the driver must supply about 1.12 mA average; at 100 kHz, about 5.6 mA. The peak current capability of the gate driver must be sufficient to charge the 4500 pF input capacitance quickly to avoid excessive switching losses. The drive voltage for minimum Rds(on) is 10 V, and the maximum gate threshold voltage is 4 V at 40 µA drain current. This means a 3.3 V logic signal will not fully enhance the channel — a 5 V or 10 V gate drive is required to achieve the rated on-resistance. This is a common fit check when substituting into an existing BOM position.
Thermal design — 79 W dissipation at 175°C junction limit
The maximum power dissipation is 79 W at case temperature, and the operating junction temperature range extends from -55°C to 175°C. The 175°C maximum is the standard for under-hood automotive environments.
Package and assembly — TO-263-3 for automated reflow
The device is supplied in a TO-263-3 (D²Pak) surface-mount package, with the Infineon supplier package code PG-TO263-3-2. The large copper tab on the bottom provides a low thermal resistance path to the PCB. This package is compatible with reflow soldering and is the standard surface-mount power package for high-volume automotive production.
This is important for production programs that require multi-year supply assurance. The part is ROHS3 compliant, meeting the latest EU restriction of hazardous substances directive without exemptions.