onsemi Unveils New High Power Totem Pole PFC Controller Meeting Challenging Efficiency Standard

2022年3月22日

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该最新器件减少开发时间和成本,使方案能更快地交付给市场

2022年3月22日—领先于智能电源和智能感知技术的安森美(onsemi,美国纳斯达克股票代号:ON),推出最新的混合信号控制器,专用于无桥图腾柱功率因数校正(TP PFC)拓扑结构。NCP1681的目标应用是超高密度离线电源。该新的控制器以适用于达350 W设计的 NCP1680的成功为基础,将功率能力扩展到千瓦范围。

在过去,TP PFC设计需要使用MCU,这增加了设计的复杂度且需要编码。现在有了NCP1681,只需添加一些外部器件,不需要编码就可实现功能齐全的TP PFC方案,从而节省时间、成本和占位。

安森美计算和云分部高级副总裁兼总经理Robert Tong谈到该新产品发布时说:“新的NCP1681将无代码TP PFC设计的优势扩展到更高功率。这使我们的客户能继续提高他们的设计能效,同时减少设计时间和成本,从而快速向市场提供方案。”

NCP1681可被配置为在固定频率连续导通模式(CCM)或多模式下工作,控制器在CCM和临界导通模式(CrM)之间自然转换,以在各种功率水平下实现最佳性能。

该新的NCP1681高功率TP PFC控制器结合成熟的控制算法和新颖的功能,提供一个高性能和高性价比的TP PFC方案,也可满足具挑战的能效标准,诸如 “80Plus ”或 “CoC Tier 2”等要求在广泛的负载范围内提供高能效的标准。

该新的NCP1681适用于350 W至数千瓦范围的更高功率的电源,工作在通用电源输入(90 - 265 Vac),广泛适用于包括服务器、高性能计算、电信、工业和OLED电视等应用。在高压输入下,NCP1681 TP PFC方案的能效将达近99%。

NCP1681将与获奖的低功率 (<300W) NCP1680一起在APEC 2022上展示,地点在美国德克萨斯州休斯顿的George R. Brown会展中心。观众可在3月21日至3月23日安森美的展台(1124)看到这些演示。

除了TP PFC控制器外,安森美还提供各种SiC MOSFET 隔离门极驱动器,可用于图腾柱的快速支路。SiC MOSFET器件具有低导通电阻(RDS(on))和紧凑的芯片尺寸,确保低电容和门极电荷(Qg),在缩小的系统尺寸中提供极高能效,从而实现高功率密度。当NCP1681与NCP51561电隔离门极驱动器一起使用时,可实现稳定可靠的设计而不会牺牲开关性能。

About onsemi

onsemi (Nasdaq: ON) is driving disruptive innovations to help build a better future. With a focus on automotive and industrial end-markets, the company is accelerating change in megatrends such as vehicle electrification and safety, sustainable energy grids, industrial automation, and 5G and cloud infrastructure. With a highly differentiated and innovative product portfolio, onsemi creates intelligent power and sensing technologies that solve the world’s most complex challenges and leads the way in creating a safer, cleaner, and smarter world.

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onsemi and the onsemi logo are trademarks of Semiconductor Components Industries, LLC. All other brand and product names appearing in this document are registered trademarks or trademarks of their respective holders. Although the Company references its website in this news release, information on the website is not to be incorporated herein.

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