Navitas Semiconductor Inc NVE031B-A1 | Demoboard Nve031b | Würth Elektronik Reference Design Search

Overview

Topology

LLC Resonant Converter

Description

This design uses a Critical Conduction Mode (CrCM/DCM) PFC (AC-400 VDC), followed by an LLC DC-DC (400-19 VDC). For both stages, the switching frequency was increased to the maximum allowed by the off-the-shelf control ICs available. The board is designed to be a ‘demonstration’ board, and is not yet optimized as a production design. With this design, a power density of 2.18 W/cc or 35.75 W/in3 is achieved, which is around 2x typical and 40% more than the best-on-class Si-based design today. Customer designs are expected to achieve even higher power density. The PFC section is a standard ON Semi NCP1615 CrCM/DCM powering 2x NV6115 (parallel) GaNFast Power ICs directly. Critical mode PFC (also known as boundary mode) is a soft-switching topology which allows higher frequency operation. The DC-DC section uses the NCP13992 current-mode resonant controller (LLC) driving NV6115s. The NV6115s have monolithically-integrated gate drivers, so the NCP13992’s drivers are not used and loss is minimized.

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Products

Order Code	Datasheet	Simulation	Downloads	Product series	I_RP,40K (A)	I_SAT,10% (A)	I_SAT,30% (A)	R_DC (mΩ)	f_res (MHz)	I_R (A)	L (µH)	R_{DC max.} (mΩ)	V_R (V (AC))	V_T (V (AC))	Material	L (mm)	W (mm)	H (mm)	Mount
7443251600	SPEC		8 files EDA models: Components ZIP ALT WE-HCI (rev22c).IntLib \| 1.2 MB ZUK Download_CadStar_WE-HCI (rev19a).zip \| 15.7 KB CDS Cadence_WE-HCI (rev22a).zip \| 8.3 MB EAG Eagle_WE-HCI (rev19a).lbr \| 126.2 KB CAD files ZIP IGS WE-HCI_1050_744325 (rev1).igs \| 2.5 MB STP WE-HCI_1050_744325 (rev1).stp \| 933.8 KB Electric models ZIP PSP PSpice_WE-HCI (rev22a).zip \| 22.1 KB SCS Spectre_WE-HCI (rev23a).mod \| 26.9 KB Download all 8 files as zip archive ZIP	WE-HCI SMT Flat Wire High Current Inductor	6.25	3.2	6.5	34.5	18	–	16	37.95	–	–	Superflux	10.5	10.2	4.7	SMT
7448030509	SPEC		9 files EDA models: Components ZIP ALT WE-CMBNC (rev24a).IntLib \| 33.5 MB ZUK Cadstar_WE-CMBNC (rev20a).zip \| 23.3 KB CDS Cadence_WE-CMBNC (rev24a).zip \| 143 MB EAG Eagle_WE-CMBNC (rev24a).lbr \| 150.3 KB CAD files ZIP 3D 3D_WE-CMBNC-M_7448030509 (rev1).pdf \| 3.4 MB IGS 7448030509 (rev1).igs \| 7.6 MB STP 7448030509 (rev1).stp \| 2.5 MB Electric models ZIP S S-Parameter_7448030509 (rev20a).s4p \| 310.6 KB PSP PSpice_WE-CMBNC (rev22a).zip \| 21.2 KB	WE-CMBNC Common Mode Power Line Choke Nanocrystalline	–	–	–	–	–	5	9000	32	300	2100	Nanocrystalline	23	13.5	26	THT
7447018	SPEC	–	6 files EDA models: Components ZIP ALT Altium_WE-FI (rev22b).IntLib \| 8.1 MB ZUK Cadstar_WE-FI (rev21a).zip \| 50.3 KB EAG Eagle_WE-FI (rev21a).lbr \| 106.3 KB CAD files ZIP IGS 7447018 (rev1).igs \| 3.4 MB STP 7447018 (rev1).stp \| 663 KB Electric models ZIP PSP PSpice_WE-FI (rev22a).zip \| 9.8 KB Download all 6 files as zip archive ZIP	WE-FI Leaded Toroidal Line Choke	–	–	–	–	–	2.5	150	–	–	–	–	16.5	10.7	–	–
750317229	SPEC	–	4 files CAD files ZIP 3D 3D_070-7023 (rev1).PDF \| 58.8 KB IGS Download_IGS_250-7023 (rev1).IGS \| 2 MB STP Download_STP_070-7023 (rev1).STEP \| 1022 KB Others ZIP WRL Download_WRL_070-7023 (rev1).WRL \| 466.7 KB Download all 4 files as zip archive ZIP	Transformer	–	–	–	–	–	–	190	–	–	3000	–	26.5	32.1	11	THT
750317297	SPEC	–	4 files CAD files ZIP 3D 3D_070-7023_MP5-6-7-8-9-10 (rev1).PDF \| 59 KB IGS Download_IGS_070-7023_MP5-6-7-8-9-10 (rev1).IGS \| 2 MB STP Download_STP_070-7023_MP5-6-7-8-9-10 (rev1).STEP \| 1012.9 KB Others ZIP WRL Download_WRL_070-7023_MP5-6-7-8-9-10 (rev1).WRL \| 468.2 KB Download all 4 files as zip archive ZIP	Inductor	–	–	–	–	–	–	77.5	–	–	500	–	26.5	31.2	11	THT