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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。
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