SECO-HVDCDC1362-40W15V-GEVB 40 W SiC High-Voltage Auxiliary Power Supply for HEV & BEV Applications Evaluation Board User's Manual
SECO−HVDCDC1362−40W15V−GEVB is highly efficient and primary−side regulated (PSR) auxiliary power supply targeting HEV and EV automotive power trains. The design provides a stable 15 V output and 40 W over a wide input DC voltage range from 250 V to 900 V, and is therefore suitable for 400 V and 800 V battery systems.The board employs the NCV1362 quasi−resonant peak current PSR flyback controller, the 3−lead cost−optimized NVHL160N120SC1160 mW 1200 V silicon carbide (SiC) MOSFET, and the FFSP0665B−F085 SiC diode.Thanks to the high blocking voltage capabilities and ultra−low gate charge (34 nC) value of the SiC FET, the switching losses are significantly reduced, and the board exhibits a superior efficiency for the application up to 86% in low line input conditions. The notable driving capabilities of the NCV1362 controller allows for direct operation of the SiC FET at 12 V without a pre−driver, simplifying the layout and cutting down the component count.The flyback transformer provides 4 kV isolation and is optimized to minimize the losses on the RCD snubber. Consequently the system effectively dampens the drain voltage overshoot at high line, and provides 100 V margin for the SiC FET. The board is fully realized with automotive qualified semiconductors and passive devices. Industrial grade replacements are also available.
●Features:
■NCV1362 (Automotive) / NCP1362 (Industrial) Quasi−resonant Peak Current PSR Flyback Controller
■Fully Automotive Qualified Devices
■Vin = 240 V – 900 V DC Only
■Vout = 15 V / 40 W Continuous
■Electromagnetic Compatibility (EN 55015 Limits)
■High Efficiency up to 85.5%
■SiC FET Directly Operated at 12 V by the IC
■Excellent Thermal Performance
●Benefits:
■Superior Efficiency with SiC Devices
■Stable Performance across a Wide Input Voltage Range (250 Vdc – 900 Vdc )
■Reduced Bill−of−Material and Cost−optimized
■Fully AEC−Q Qualified Parts
■EMC within EN 55015 Limits
■Single Layer PCB
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SiC High-Voltage Auxiliary Power Supply 、 HEV & BEV Applications Evaluation Board |
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[ HEV & EV Vehicles Auxiliary Power Supplies ][ Automotive Power train Systems ][ EV Charging and DC−DC Conversion ][ Industrial DC−DC Conversion, Solar Inverts (with Industrial grade) ] |
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User's Guide |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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October, 2020 |
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Rev.0 |
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EVBUM2763/D |
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2.1 MB |
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