SEC-6D6KW-OBC-TTP-GEVB: A 6.6kW OBC evaluation board using Totem pole topology

This 6.6kW OBC evaluation board provides a reference design on the power stage of totem pole interleave PFC topology which consists of 650V N-Channel Power MOSFET SUPERFET® III (NVHL025N65S3), monolithic high- and low-side gate-driver IC (FAN7191_F085) in low-speed leg, high switching performance SiC MOSFET (NVHL060N090SC1), Isolated High Current and High Efficiency IGBT driver (NCV57000DWR2G) in high-speed leg. With these high performance devices and totem pole topology, the system efficiency reaches 97% (typical value), and hardware protection of OCP and OVP is also provided for high system reliability. Onboard auxiliary power system is designed to supply every circuits on the board and the control board without outside DC source. Meanwhile, flexible control interfaces are available to adapt different controller boards. Visit the On Board Charging solutions site to learn how onsemi can help you a comprehensive and advanced portfolio.
Features and Applications


  • 3ch Interleave Totem Pole PFC
  • Efficiency up to 97% @Vin=220V/AC, Full Load
  • Onboard hardware protection of OCP and OVP
  • Flexible control interface for different controller boards
  • Input voltage – 90~260Vac
  • Output voltage – 1.414xVin+10V – 405Vdc


  • On Board Charger (OBC)
  • EV Charging
  • 3-Ph AC/DC conversion
Evaluation/Development Tool Information
Product Status Compliance Short Description Parts Used Action
A 6.6kW OBC evaluation board using Totem pole topology FAN7191MX-F085 FSL336LRN
NVHL025N65S3 NVHL060N090SC1
Technical Documents
Type Document Title Document ID/Size Rev
Eval Board: Manual 6.6 kW Totem-Pole Demo Board User's Manual EVBUM2784/D - 2133 KB  0 
Eval Board: Schematic SEC-6D6KW-OBC-TTP-GEVB Schematic SEC-6D6KW-OBC-TTP-GEVB_SCHEMATIC - 370 KB  0 
Eval Board: Gerber SEC-6D6KW-OBC-TTP-GEVB Gerber Layout Files (Zip Format) SEC-6D6KW-OBC-TTP-GEVB_GERBER - 5793 KB  0 
Eval Board: BOM SEC-6D6KW-OBC-TTP-GEVB Bill of Materials (ROHS Compliant) SEC-6D6KW-OBC-TTP-GEVB_BOM_ROHS - 395 KB  0 
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