PMP9310, 3.3V Low-Cost Non-Isolated Offline Converter for Smart E-Meters Reference Design

使用 Texas Instruments 的 LM25017MR 的参考设计

供应商

Texas Instruments
  • 应用类别
    电源
  • 产品类别
    交流到直流单输出电源

依据最终产品

  • Smart Electric Meter

说明

  • PMP9310, 3.3V Low-Cost Non-Isolated Offline Converter for Smart E-Meters Reference Design. The PMP9310 is an offline converter that supplies 3.3VDC output at up to 132mA. It is used for 50Hz single-phase smart e-meters where maximum allowable input apparent power is regulated (typically 4VA) and galvanic isolation is unnecessary. It solves the problem of limited available output power typically seen in a linearly regulated output stage. By employing the wide input LM5017 buck switcher, the capacitor-drop design sets the input of the DC-DC stage at a high value of 72V and extracts significantly more power from the mains at a given input apparent power

主要特色

  • Conversion Type
    AC to DC
  • Input Voltage
    85 to 230 (AC) V
  • Output Voltage
    3.3 V
  • Output Current
    0.14 A
  • Efficiency
    54 %
  • Topology
    Buck

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