LED 驱动器,AC-DC 功率因数校正升压开关稳压器,集成式 MOSFET,三端双向可控硅调光,温度折回

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NCL30095A 大功率因数升压 PWM 开关稳压器,适用于调节 LED 灯串的平均电流。该电路基于成熟可靠的恒定导通时间控制方案,在临界导通模式 (CrM) 下运行,以实现接近一致的功率因数。 除了调节恒定电流外,该开关稳压器经过优化,还可支持前缘和后缘相位调光应用。 如在交流输入端检测到调光器,电流调节回路的内部参考电压会根据调光器导通角来调整电流电平,从而根据设定的调光曲线,让通过 LED 串的电流达到预期值。调光曲线的形状旨在模拟白炽灯泡的响应,同时实现 NEMA SSL6 和 NEMA SSL7A 的建议。级联配置的集成式 HV MOSFET 支持在运行期间偏置控制器,并无需辅助绕组即可提供偏置电源。其中包含一套强大的保护功能,确保正确处理预期的故障条件,而不需要额外的电路,经证明,专用的热折回输入可逐步减少超出用户定义设定点的电流。

  • Integrated LED Drive Electronics
  • LED Bulbs
  • LED Downlights
  • LED Light Engines
  • LED Modules
  • Near-unity Power Factor
  • Critical conduction Mode (CrM)
  • Constant on-time control
  • Accurate current regulation (+/- 2% typical)
  • Compatible with leading and trailing edge phase controlled dimmers
  • Cascoded configuration
  • Open and Shorted LED/Output Diode Protection
  • User programmable thermal current fold-back
  • Cycle- by- cycle current limiting
  • Wide Temperature range of -40 to 125 °C
  • Integrated HV MOSFET

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NCL30095ADR2G

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SOIC-14 NB Less Pin 4

3

260

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2500

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30

380

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500

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