feedback
评价本网页


需要帮助?


打印

ON Semiconductor Introduces Fixed-Frequency Current-Mode Controller for High Efficiency, Compact Adapter Solutions  Chinese Japanese Korean

Controllers Offer High Efficiency and Low Standby Power Consumption in Wide Range of AC-DC Adaptor Applications

Fixed-Frequency Current-Mode Controller PhotoAPPLIED POWER ELECTRONICS CONFERENCE (APEC), PALM SPRINGS, Calif. - Booth # 315 – Feb. 22, 2010 – ON Semiconductor (Nasdaq: ONNN) a premier supplier of high performance, energy efficient silicon solutions for green electronics today announced the introduction of  the NCP1237, NCP1238 and NCP1288 fixed-frequency, current-mode controller ICs. Targeted at AC-DC adapter applications for laptop/notebook computers, LCD displays, printers, and household consumer electronics, the new controllers are available in a choice of frequency options with single or dual level over current thresholds. The standard device has a built-in 65 kHz oscillator, with 100 kHz and 133 kHz versions supplied on request.

The proprietary Soft−Skip™ mode utilized by these ICs ramp the peak current gradually during skip mode, reducing the risk of audible noise. This allows additional component savings, along with easing the design and manufacture of the transformer. Combining this with a frequency fold-back function, the new controllers deliver high efficiency levels in light load conditions, while minimizing input power during no load conditions.

The Dynamic Self−Supply (DSS) function of the NCP1237 and NCP1238 provide an integrated start-up current source that intelligently handles start-up and line transient events. This simplifies the design of the auxiliary supply, reducing the size of the VCC capacitor. To minimize external component count, the controllers integrate brown-out, over-power compensation and ramp compensation, allowing a compact solution to be designed.

The new fixed-frequency, current-mode controller ICs have an operational temperature range of −40 °C to +125 °C and are offered in a compact SOIC-7 package.

“With utility bills continuing to increase and concerns about the environment growing, it is vital to use electrical power at the greatest possible rates of efficiency,” said Christophe Warin, AC-DC business unit manager at ON Semiconductor. “The NCP1237, NCP1238 and NCP1288 are highly integrated solutions that will allow engineers to develop power system designs that maintain strong reliability, have a low bill-of-materials and do not waste energy when the product is in standby mode.”

The NCP1237 controller will be featured in a live demo at the ON Semiconductor booth (#315) during APEC, which takes place Feb. 22-25, 2010 in Palm Springs, Calif.

For more information, please visit http://www.onsemi.com.

新浪微博上关注@安森美半导体www.weibo.com/onsemiconductor

关于安森美半导体
安森美半导体(ON Semiconductor,美国纳斯达克上市代号:ONNN)致力于推动高能效电子的创新,使客户能够减少全球的能源使用。公司全面的高能效电源和信号管理、逻辑、分立及定制方案阵容,帮助工程师解决他们在汽车、通信、计算机、消费电子、工业、LED照明、医疗、军事/航空及电源应用的独特设计挑战。公司运营敏锐、可靠、世界一流的供应链及品质项目,及在北美、欧洲和亚太地区之关键市场运营包括制造厂、销售办事处及设计中心在内的业务网络。更多信息请访问http://www.onsemi.cn

# # #

安森美半导体和安森美半导体图标是 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。