SECO-HVDCDC1362-15W-GEVB: 15 W SiC high voltage auxiliary power supply for HEV and electric vehicles Pure electric vehicle applications

SECO-HVDCDC1362-15W-GEVB 是一款高效的初级侧调节 (PSR) 辅助电源，适用于 HEV 和 EV 汽车动力传动系统。该设计可在 250 V 至 900 V 的宽输入直流电压范围内提供稳定的 15 V 输出和 15 W 功率，因此适用于 400 V 和 800 V 电池系统。该板采用 NCV1362 准谐振峰值电流 PSR 反激控制器、3 引线成本优化的 NVHL160N120SC1160 m 1200 V 碳化硅 (SiC) MOSFET 和 FFSD0665B-F085 SiC 二极管。得益于 SiC FET 的高阻断电压能力和超低栅极电荷 (34 nC) 值，开关损耗显著降低，并且该板在低线输入条件下的应用效率高达 86%。 NCV1362 控制器的卓越驱动能力允许 SiC FET 在 12V 下直接运行，无需预驱动器，从而简化布局并减少元件数量。反激式变压器提供 4 kV 隔离，并经过优化以最大限度地减少 RCD 缓冲器上的损耗。因此，该系统有效地抑制了高压线路上的漏极电压过冲，并为 SiC FET 提供了 100 V 的裕度。该板完全采用汽车级合格半导体和无源器件。还提供工业级替代品。特性和应用 特性 NCV1362（汽车）/ NCP1362（工业） 准谐振峰值电流 PSR 反激控制器 完全符合汽车标准的器件 Vin = 240 V - 900 V DC 仅 Vout = 15 V / 15 W 连续电磁兼容性（EN 55015 限制） 效率高达 86% SiC FET 由 IC 直接在 12 V 下操作 出色的热性能优势 SiC 器件的卓越效率 在宽输入电压范围内（250 Vdc - 900 Vdc）保持稳定的性能 减少物料清单和成本优化 完全符合 AEC-Q 标准的部件 EMC 符合 EN 55015 限制 单层 PCB 应用 电动汽车充电和直流-直流转换 HEV 和 EV 汽车辅助电源 汽车动力传动系统 工业 DCDC 转换、太阳能逆变器（工业级）

SECO-HVDCDC1362-15W-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 15 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 NVHL160N120SC1
160 m 1200 V silicon carbide (SiC) MOSFET, and the
FFSD0665B-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 12V 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 and Applications


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 / 15 W Continuous
Electromagnetic Compatibility (EN 55015 Limits)
High Efficiency up to 86%
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



Applications
EV Charging and DC-DC Conversion
HEV & EV Vehicles Auxiliary Power Supplies
Automotive Powertrain Systems
Industrial DCDC Conversion, Solar Inverts (with Industrial grade)