News: Microelectronics
28 July 2022
Qorvo Inc of Greensboro, NC, USA (which provides core technologies and RF solutions for mobile, infrastructure and defense applications) has launched seven 750V silicon carbide (SiC) field-effect transistors (FETs) in the surface-mount D2PAK-7L package.
With this package option, Qorvo’s SiC FETs are tailored for the rapidly growing applications of on-board chargers, soft-switched DC/DC converters, battery charging (fast DC and industrial) and IT/server power supplies. They are said to deliver an optimal solution for high-power applications that require maximum efficiency, low conduction losses and excellent cost effectiveness in a thermally enhanced package.
Highlighted by what is claimed to be the industry’s lowest on-resistance (RDS(on)) of 9mΩ at 650/750V, the Gen 4 UJ4C/SC series is rated at 9, 11, 18, 23, 33, 44 and 60mΩ. This wide selection provides engineers with more device options, enabling greater flexibility to achieve an optimum cost/efficiency balance while maintaining generous design margins and circuit robustness. Leveraging a unique cascode SiC FET technology in which a normally-on SiC JFET is co-packaged with a silicon MOSFET to produce a normally-off SiC FET, the devices deliver what is claimed to be a best-in-class RDS x A figure of merit, resulting in the lowest conduction losses in a small die.
“The D2PAK-7L package reduces inductance from compact internal connection loops which ─ along with the included Kelvin source connection ─ results in low switching loss, enabling higher-frequency operation and improved system power density,” says Anup Bhalla, chief engineer at UnitedSiC (now Qorvo). “These devices also feature silver-sinter die attach, resulting in very low thermal resistance for maximum heat extraction on standard PCBs as well as IMS substrates with liquid cooling.”
Pricing (1000-up, FOB USA) for the new 750V Gen 4 SiC FETs in the D2PAK-7L package ranges from $3.50 for the UJ4C075060B7S to $18.92 for the UJ4SC075009B7S. All devices are available from authorized distributors.
Qorvo/UnitedSiC launches 1200V Gen 4 SiC FETs
Qorvo acquires silicon carbide power semiconductor supplier UnitedSiC