• [ CXAC85171 ]

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1.产品概述       2.产品特点     uDr嘉泰姆

3.应用范围       4.技术规格书下载（PDF文档）uDr嘉泰姆

5.产品封装       6.电路原理图  uDr嘉泰姆

7.相关产品uDr嘉泰姆

   产品概述 返回TOPuDr嘉泰姆

       CXAC85171是一款高性能二次侧同步整流控制器。CXAC85171控制NMOS以实现近乎理想二极管的特性进行整流，从而实现系统节能。CXAC85171采用伏秒平衡控制方法而不直接与MOSFET的漏端相连，可实现更宽的输出电压应用范围。CXAC85171内置系统频率检测，在极轻负载时进入待机模式。其适用于DCM、临界和CCM模式The CXAC85171 is a high performance controller used to secondary side synchronous rectifier (SR). The fundamental of CXAC85171 is utilized N-channel MOSFET power devices used for secondary side synchronous to emulate a near-ideal diode rectifier. This method not only directly reduces power dissipation of the rectifier but also reduces primary side losses as well. The CXAC85171 is applied voltage-second balancing control method and not directly connected to the MOSFET drain, so it is ideal for flyback power supplies over the wide-output voltage range. The SR drive turn-off threshold is not related to the MOSFET RDS(on), which allows optimizing for maximum conduction time. The CXAC85171 offers a frequency detector to automatically switch to standby mode during low power conditions and pin fault protections. It is compatible with DCM, TM and CCM operation

   产品特点 返回TOPuDr嘉泰姆

•适用5V-24V系统uDr嘉泰姆

•伏秒平衡控制方式uDr嘉泰姆

•适用DCM、临界和CCM模式uDr嘉泰姆

•短路保护uDr嘉泰姆

•SOT23-6和SOP-8 封装uDr嘉泰姆

•符合RoHS规范及Pb-FreeuDr嘉泰姆

Secondary-Side SR Optimized Controller for 5V touDr嘉泰姆

24V Flyback SystemsuDr嘉泰姆

Volt-Second Balance SR On-Time ControluDr嘉泰姆

Compatible with Primary-Side and Second-SideuDr嘉泰姆

ControluDr嘉泰姆

CCM Operation CompatibilityuDr嘉泰姆

Short Pin Fault ProtectionuDr嘉泰姆

Available in SOP-8 and SOT23-6 PackagesuDr嘉泰姆

RoHS Compliant and 100% Lead (Pb)-FreeuDr嘉泰姆

Halogen-FreeuDr嘉泰姆

   应用范围 返回TOPuDr嘉泰姆

•电视、显示器、网通电源等uDr嘉泰姆

•其它消费电子电源。uDr嘉泰姆

Switching Mode Power Supply(DCM, TM and CCM)uDr嘉泰姆

Chargers for Smart Phones and TabletsuDr嘉泰姆

High Efficiency Auxiliary Power in ServeruDr嘉泰姆

Desktop and Appliance ApplicationuDr嘉泰姆

   技术规格书（产品PDF) 返回TOP uDr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！uDr嘉泰姆

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产品封装图 返回TOPuDr嘉泰姆

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电路原理图 返回TOPuDr嘉泰姆

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◀ 上一篇:CXAC85170高性能控制器驱动器二次侧同步整流的N沟道MOSFET漏极直接相连电源器件伏秒平衡控制方法开启关断SR的阈值

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下一篇▶:CXAC85174通过光耦回馈自动调节恒压输出通过辅助线圈检测自动调节恒流输出的AC-DC控制器PWM和PFM模式自动切换调节DCM模式下的波谷检测减少开关损耗

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