安森美推出新的高功率图腾柱PFC控制器,满足具挑战的能效标准

Latest device reduces development time and cost allowing solutions to be delivered to market faster

PHOENIX – March 21, 2022 – onsemi (Nasdaq: ON), a leader in intelligent power and sensing technologies, introduced its latest mixed-signal controller dedicated to bridgeless totem pole PFC (TP PFC) topology. The NCP1681 targets ultra-high density offline power supplies. Building upon the success of theNCP1680, which is suited for designs up to 350 W, the new controller extends the power capability into the kilowatt range.

In the past, TP PFC designs required the use of an MCU that added design complexity and the need for coding. However, with the NCP1681, only a few external components and no coding is needed to be added for a fully-featured TP PFC solution, thereby saving time, cost and space.

Commenting on the new release, Robert Tong, Senior Vice President & General Manager of Computing and Cloud Division at onsemi said “The new NCP1681 extends the benefits of code-free TP PFC design into higher power. This allows our customers to continue to enhance the efficiency of their design while reducing design time and cost, thereby delivering solutions to market quickly.”

The NCP1681 can be configured to work in either fixed frequency continuous conduction mode (CCM) or multi-mode operation, where the controller naturally transitions between CCM and critical conduction mode (CrM) for optimal performance across power levels.

The new NCP1681 high power TP PFC controller integrates established control algorithms with novel features to deliver a high performance and cost-effective TP PFC solution. Challenging efficiency standards such as ‘80Plus’ or ‘CoC Tier 2’, that require high efficiency over a wide load range, can also be met.

The new NCP1681 is suited to higher-power power supplies from 350 W to several kilowatts range that operate on universal mains input (90 – 265 Vac), addressing a wide range of applications including server, high performance computing, telecom, industrial and OLED TV. At high line, NCP1681 TP PFC solutions will achieve close to 99% efficiency.

The NCP1681 will be demonstrated alongside the award-winning lower power (<300 W) NCP1680 at APEC 2022 , at the George R. Brown Convention Center in Houston, TX. The demonstrations can be found at onsemi’s booth (1124) from March 21 to March 23.

Alongside the TP PFC controllers, onsemi offers a wide range of SiC MOSFETs and isolated gate drivers that can be used for the fast leg of the totem pole. SiC MOSFET devices have low on resistance (RDS(on)) and compact chip size which ensures low capacitance and gate charge (Qg), delivering highest efficiency in a reduced system size, thereby enabling power density. When NCP1681 is used with NCP51561 galvanically isolated gate driver, robust design can be realized without sacrificing switching performance.

关于安森美(onsemi)

安森美(纳斯达克股票代码:ON)一直在推动颠覆性创新的路上孜孜以求,努力打造更美好的未来。公司专注于汽车和工业终端市场,目前正加速变革,拥抱大趋势的转变,包括汽车电汽化和汽车安全、可持续能源网、工业自动化以及5G和云基础设施等。安森美的智能电源和感知技术,以高度差异化的创新产品组合,助力解决全球最复杂的挑战和难题,引领创建一个更加安全、 清洁、智能的世界。安森美是《财富》美国500强(Fortune 500®)和标普500指数(S&P 500®)企业。访问www.onsemi.cn了解关于安森美的更多内容。

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安森美安森美图标是Semiconductor Components Industries, LLC的注册商标。所有本文中出现的其它品牌和产品名称分别为其相应持有人的注册商标或商标。虽然公司在本新闻稿提及其网站,但此稿并不包含其网站中有关的信息。

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