CXAC8544

CXAC8544是一款用于电池充电器和适配器应用的高性能AC/DC电源控制器。该装置采用脉冲频率调制(PFM)方法建立不连续导通模式(DCM)反激电源。CXAC8544在移除光耦和二次控制电路的同时提供精确的恒压、恒流(CV/CC)调节。它还消除了环路补偿电路的需要,同时保持了稳定性。CXAC8544具有良好的调节性能和较高的平均效率,同时满足了30mW以下的空载功耗要求。
设置700V高压电源开关管及少量外围元件。
矩形恒流恒压输出的一次侧控制
亚微安启动电流
30mW空载输入功率可行
紧凑型CV调节性能
消除光耦和二次CV/CC控制电路
消除控制回路补偿电路
DCM操作中的反激拓扑
降低软启动系统EMI的随机调频
开放反馈保护
短路保护

CXAC8544二次控制电路提供精确的恒压恒流(CV/CC)调节环路补偿电路保持稳定性紧凑型CV调节性能脉冲频率调制PFM方法建立不连续导通模式DCM反激电源

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   产品概述 返回TOPwbW嘉泰姆


The CXAC8544 is a high performance AC/DC power supply controller for battery charger and adapter applications. The device uses Pulse Frequency Modulation(PFM) method to build discontinuous conduction mode (DCM) flyback power supplies. The CXAC8544 provides accurate constant voltage, constant current (CV/CC) regulation while removing the opto-coupler and secondary control circuitry. It also eliminates the need of loop compensation circuitry while maintaining stability. The CXAC8544 achieves excellent regulation and high average efficiency, yet meets the requirement for no-load consumption less than 30mW.

   产品特点 返回TOPwbW嘉泰姆


    Set-in high-voltage power switch tube of 700V and few peripheral components.wbW嘉泰姆

  Primary Side Control for Rectangular Constant Current and Constant Voltage OutputwbW嘉泰姆

  Sub-microampere Start-up Current  30mW No-load Input Power FeasiblewbW嘉泰姆

  Tight CV Regulation PerformancewbW嘉泰姆

  Eliminates Opto-coupler and Secondary CV/CC Control Circuitry  Eliminates Control Loop Compensation CircuitrywbW嘉泰姆

  Flyback Topology in DCM OperationwbW嘉泰姆

  Random Frequency Modulation to Reduce System EMI  Built-in Soft StartwbW嘉泰姆

  Open Feedback ProtectionwbW嘉泰姆

  Short Circuit ProtectionwbW嘉泰姆

  SOP8 PackagewbW嘉泰姆

   应用范围 返回TOPwbW嘉泰姆


 Adapters/Chargers for Cell/Cordless Phones, PDAs, MP3 and Other Portable ApparatuswbW嘉泰姆

  LED DriverswbW嘉泰姆

  Standby and Auxiliary Power SupplieswbW嘉泰姆

   技术规格书(产品PDF) 返回TOP wbW嘉泰姆


     需要详细的PDF规格书请扫一扫微信联系我们,还可以获得免费样品以及技术支持!wbW嘉泰姆

 QQ截图20160419174301.jpgwbW嘉泰姆

产品封装图 返回TOPwbW嘉泰姆


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电路原理图 返回TOPwbW嘉泰姆


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