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        来源: 日期: 2013-10-9 浏览次数: 3176

        标价牌:力林(PowerForest)

        生肖印:NE1109 NE1109 datasheet Rev 00.rar

        The NE1109 is a green mode PWM controller, it is built-in with several features to enhance the performance of off-line power supply in SO-8 package. The NE1109 is automatically to optima the efficiency during light load and quarter of output loading. Under no load condition, the controller enters skip mode and limits the peak current to avoid audible noise. The NE1109 is designed for high performance SMPS and integrates a jittering function that helps reduce EMI emission of a power supply with minimum EMI filters. The OPP and Brown in/out are integrated and flexible to be adjustable.

         Features:

      10. Adjustable Over Power Protection Function
      11. Brown in and Brown out Function
      12. Minimum Frequency Limit to avoid Audible Noise
      13. Latched Primary OTP & OVP
      14. Operation Frequency Down to 26KHz in Light Load and Skipped Cycle in No Load Condition
      15. Auto Recovery System Open Loop Protection
      16. Auto Recovery System Output Short Circuit Protection
      17. Internal 4mS Soft Start Time Period
      18. Internal 300nS Leading Edge Blanking+300mA/-500mA Gate Drive Capability
      19. Frequency Jittering for EMI Reduction
      20. Current Mode Control with Internal Slope Compensation
      21. Cycle-by-Cycle Maximum Current Limit Protection
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