SEC-6D6KW-OBC-SIC-GEVB: 6.6kW OBC silicon carbide model

This evaluation board provides a reference design on PFC and LLC in a 6.6kW OBC system with SiC power devices and drivers, which mainly comprises of the high switching performance SiC diode (FFSP3065A), SiC mosfet (NVHL020N090SC1), 6A SiC mosfet driver (NCP51705MNTXG), 900V 60mΩ SiC mosfet (NVHL060N090SC1). With these high performance SiC devices, it achieves high efficiency (up to 95%) and power density. The full bridge LLC circuit with AEC qualified LLC resonant converter controller (NCV4390) boosts up the efficiency by high bus voltage usage. Meanwhile hardware PFC and LLC control realize easy design and less malfunction for users.
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Features and Applications


Features
SiC power devices and drivers
High power density, low current ripple
Efficiency up to 95% @Vin=220V/AC, Vbus=400V, Vout=430V, Full Load
FAN9673 - 3ch CCM (Continuous Conduction Mode) interleaved PFC controller
NCV4390 - Advanced Secondary Side LLC Resonant Converter Controller with Synchronous Rectifier Control
Adjustable bus voltage
Input voltage - 90~260Vac
Output voltage - 250~450Vdc





Applications
On Board Charger (OBC)
EV Charging
3-Ph AC/DC conversion