Offline Regulators | FSDM311A

用于 8W 离线反激转换器的 650V 集成电源开关

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概览

FSDM311A 集成了脉宽调制 (PWM) 控制器和 SenseFET，专门为高性能离线开关模式电源 (SMPS) 而设计，且外部部件数量极小。此器件是一款集成式高电压电源开关稳压器，将 VDMOS SenseFET 与电压模式 PWM 控制装置相结合。该集成式 PWM 控制器特性包括固定振荡器、欠电压 (UVLO) 保护、前缘间隔 (LEB)、优化的门极开/关驱动器、高温关断 (TSD) 保护，用于环路补偿的温度补偿精确电源源以及故障保护电路。与分立 MOSFET 和控制器或 RCC 开关转换器解决方案相比，FSDM311A 器件可以降低部件总数量、设计尺寸和重量；同时提高了能效、生产力和系统可靠性。此器件为适应反激转换器的设计提供基本平台。

  • 运动控制-家用设备
  • 运动控制-工业电机
  • 智能电网
  • 智能电表
  • 内部耐雪崩 SenseFET
  • 精确的固定工作频率：67 kHz
  • 在先进突发模式操作，265VAC和空载时功耗低于0.2W
  • 内部启动电路
  • 逐脉冲限流
  • 过压保护(OVP)
  • 过载保护 (OLP)
  • 内部热关断功能 (TSD)
  • 自动重启模式
  • 具有滞后的欠压闭锁(UVLO)
  • 内置软启动
  • 次级端调节

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fJitter Typ (%)

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FSDM311A

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PDIP-8

626-05

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3000

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14

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