Controllers | CS51021A

增强电流模式 PWM 控制器，用于正向或反激 (36-72 V Telecom)

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CS51021 固定频率 PWM 电流模式控制器系列提供 AC-DC 或 DC-DC 初级侧控制所需的所有必要功能。其中包含几个功能，无需使用附加组件在外部实现这些功能。除低启动电流 (75 µA) 和高频运行功能外，增强电流模式 PWM 控制器还包含过电压和欠压监控、 外部可编程双阈值过电流保护、电流感应前缘间隔、电流斜率补偿、准确占空比控制，以及一个可由外部提供的 5.0 V 电压参考。CS51021A 具有双向同步功能，而 CS51022A 睡眠模式的最大集成电路电流耗量为 100 µA。CS51021A/2A 增强电流模式 PWM 控制器采用 SOIC-16 或 TSSOP-16 引线封装。

  • 36 - 72V Telecom
  • DC-DC Telecom Bricks
  • 75 mA Max.Startup Current
  • Fixed Frequency Current Mode Control
  • 1.0 MHz Switching Frequency
  • Undervoltage Protection Monitor
  • Overvoltage Protection Monitor with Programmable Hysteresis
  • Programmable Dual Threshold Overcurrent Protection with Delayed Restart
  • Programmable Soft Start
  • Accurate Maximum Duty Cycle Limit
  • Programmable Slope Compensation
  • Leading Edge Current Sense Blanking
  • 1.0 A Sink/Source Gate Drive
  • Bidirectional Synchronization (CS51021A)
  • 50ns PWM Propagation Delay
  • 100 A Max Sleep Current (CS51022A)
  • Pb-Free Packages are Available

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CS51021AEDR16G

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SOIC-16

751B-05

1

260

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2500

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20

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