Offline Regulators | FSQ0565RS

650V 集成电源开关，准谐振运行，用于 60W 离线反激转换器

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与具有固定开关频率的传统硬开关转换器相比，准谐振转换器 (QRC) 通常具有更低的 EMI 和更高的功率转换效率。FSQ 系列是一款集成的脉宽调制 (PWM) 控制器和 SenseFET，专用于准谐振运行和交替谷开关 (AVS)。该 PWM 控制器包括集成的固定频率振荡器、欠压锁定 (UVLO)、前缘间隔 (LEB)、优化的门极驱动器、内部软启动、用于回路补偿的温度补偿精确电流源，以及自我保护电路。与分立 MOSFET 和 PWM 控制器方案相比，FSQ 系列可以降低总成本、部件数量、尺寸和重量；同时提高了能效、生产力和系统可靠性。此器件为准谐振开关反激转换器的成本高效设计提供了基本平台。

  • LCD 电视
  • 针对准谐振转换器 (QRC) 进行了优化

  • 通过变频控制和 AVS（交替谷底开关）实现低 EMI

  • 通过最小电压开关实现高效率

  • 在宽负载和输入电压变化时狭窄的频率变化范围

  • 先进的突发模式运行可实现低待机功耗

  • 简单的同步电压检测模式

  • 逐脉冲限流

  • 各种保护功能：过载保护 (OLP)、过压保护 (OVP)、带滞后的内部热关断 (TSD)、输出短路保护 (OSP)
  • 带滞后的欠压闭锁 (UVLO)
  • 内部启动电路
  • 内部高压感应 FET (650 V)
  • 内置软启动 (17.5 ms)

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FSQ0565RSWDTU

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TO-220-6

340BG

NA

0

TUBE

400

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1.76

650

2250

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