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ML4805IP 数据表 (PDF) - Fairchild Semiconductor

ML4805IP Datasheet PDF - Fairchild Semiconductor
部件名 ML4805IP
下载  ML4805IP 下载

文件大小   125.44 Kbytes
  13 Pages
制造商  FAIRCHILD [Fairchild Semiconductor]
网页  http://www.fairchildsemi.com
标志 FAIRCHILD - Fairchild Semiconductor
功能描述 Variable Feedforward PFC/PWM Controller Combo

ML4805IP Datasheet (PDF)

Go To PDF Page 下载 数据表
ML4805IP Datasheet PDF - Fairchild Semiconductor

部件名 ML4805IP
下载  ML4805IP Click to download

文件大小   125.44 Kbytes
  13 Pages
制造商  FAIRCHILD [Fairchild Semiconductor]
网页  http://www.fairchildsemi.com
标志 FAIRCHILD - Fairchild Semiconductor
功能描述 Variable Feedforward PFC/PWM Controller Combo

ML4805IP 数据表 (HTML) - Fairchild Semiconductor

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ML4805IP 产品详情

GENERAL DESCRIPTION
The ML4805 is a controller for power factor corrected, switched mode power supplies. Similar to the ML4801, the ML4805 may be used for voltage mode operation. Key features of this combined PFC and PWM controller are low start-up and operating currents. Power Factor Correction (PFC) allows the use of smaller, lower cost bulk capacitors, reduces power line loading and stress on the switching FETs, and results in a power supply that fully complies with IEC1000-2-3 specifications. The ML4805 includes circuits for the implementation of a leading edge, average current “boost” type power factor correction and a trailing edge pulse width modulator.
The PFC frequency of the ML4805 is automatically set at half that of the PWM frequency generated by the internal oscillator. This technique allows the user to design with smaller output components while maintaining the optimum operating frequency for the PFC. An over voltage comparator shuts down the PFC section in the event of a sudden decrease in load. The PFC section also includes peak current limiting and input voltage brownout protection.

FEATURES
■ Internally synchronized PFC and PWM in one IC
■ Low start-up current (200µA typ.)
■ Low operating current (5.5mA typ.)
■ Low total harmonic distortion
■ Reduces ripple current in the storage capacitor
   between the PFC and PWM sections
■ Average current continuous boost leading edge PFC
■ High efficiency trailing edge PWM optimized for
   voltage mode operation
■ Current fed gain modulator for improved noise immunity
■ Brown-out control, overvoltage protection, UVLO, and soft start




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关于 Fairchild Semiconductor


Fairchild半导体是一家开创性的半导体公司,成立于1950年代后期。
该公司以其在第一个商业晶体管的开发方面的创新而闻名,以及对综合电路技术发展的贡献。
Fairchild成为电力半导体,模拟和混合信号综合电路以及其他半导体产品的领先供应商。
该公司是在2016年被ON半导体收购的,其产品和技术继续在ON半导体品牌下开发和出售。

*此信息仅供一般参考,对于因上述信息造成的任何损失或损害,我们概不负责。




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