The CoolMOS C7 Gold is a 650V device which comes with 4pin Kelvin source capability and benefits from the improved thermal properties of the TO-Leadless package. This, the company says, enables a viable SMD solution for high current topologies such as power factor correction up to 3kW.
The increase in C7 Gold performance is said to bring higher efficiency and lower switching losses, reducing thermal losses in the process. Said to have the lowest Ron*A, the part has an Rds(on) of 33m?.
Compared to other SMD packages, such as D²PAK, the TO-Leadless package has a 30% smaller footprint and is only half the height. The C7 Gold has a footprint of 115mm2.
The package can be connected either as a standard 3pin MOSFET or using the 4pin Kelvin Source concept. The latter feature brings additional efficiency benefits, particularly at full load, and reduces ringing on the gate.