高电压开关稳压器

概览

MC33363 是一款单片高电压开关稳压器,专门用于基于经过整合的 240 Vac 线路电源运行。此集成电路具有片上 700 V/1.0 A SenseFET 电源开关、450 V 有源离线启动 FET、占空比控制的振荡器、带可编程阈值和前缘间隔的电流限制比较器、用于加倍脉冲抑制的锁存脉宽调制器、高增益误差放大器,以及经过调整的内部禁带参考。保护特性包括按周期电流限制、带磁滞的输入欠压锁定、输出过电压保护和高温关断。此器件采用 16 引线双列直插和宽体表面贴装封装。

  • On-Chip 700 V, 1.0 A SenseFET Power Switch
  • Rectified 240 Vac Line Source Operation
  • On-Chip 450 V Active Off-Line Startup FET
  • Latching PWM for Double Pulse Suppression
  • Cycle-By-Cycle Current Limiting
  • Input Undervoltage Lockout with Hysteresis
  • Output Overvoltage Protection Comparator
  • Trimmed Internal Bandgap Reference
  • Internal Thermal Shutdown

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