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首页 > 产品中心 > LED驱动电路 > AC/DC转换型高压LED驱动芯片 > AC/DC SSR系列 >CXAC85193A CXAC85193B CXAC85193C CXAC85193D高性能固定频率电流模式控制器温度补偿基准高增益误差放大器电流传感比较器驱动功率MOSFET的大电流图腾极输出
CXAC85193A CXAC85193B CXAC85193C CXAC85193D高性能固定频率电流模式控制器温度补偿基准高增益误差放大器电流传感比较器驱动功率MOSFET的大电流图腾极输出
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CXAC85193A CXAC85193B CXAC85193C CXAC85193D系列是高性能固定频率电流模式控制器。它们是专为离线和直流-直流转换器应用而设计的,为设计者提供了一个具有成本效益的解决方案,只需最少的外部组件。这些集成电路具有用于精确占空比控制的修剪振荡器、温度补偿基准、高增益误差放大器、电流传感比较器和非常适合驱动功率MOSFET的大电流图腾极输出。还包括保护特性,包括输入和参考欠压闭锁,每个都有滞后、逐周电流限制、可编程输出死区时间和用于单脉冲计量的锁存器。这些设备有8针双列直插式陶瓷和塑料封装以及8针塑料表面安装(SO-8)。和14针塑料表面安装(SO-14)。SO-14封装图腾柱输出级有独立的电源和接地引脚。这个系列成员之间的差异是欠电压锁定阈值。CXAC85193A CXAC85193B CXAC85193C CXAC85193D具有16 V(开)和10 V(关)的紫外线阈值,非常适合离线转换器。CXLE8941B的相应阈值为8.5 V和7.9 V。
用于精确占空比控制的微调振荡器放电电流
电流模式运行至500 kHz
自动前馈补偿
用于逐周限流的闭锁式脉宽调制
带欠压锁定的内部微调基准
大电流图腾极输出
带滞后的欠压锁定
低启动和工作电流

CXAC85193A CXAC85193B CXAC85193C CXAC85193D高性能固定频率电流模式控制器温度补偿基准高增益误差放大器电流传感比较器驱动功率MOSFET的大电流图腾极输出
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1.产品概述       2.产品特点     Vub嘉泰姆

3.应用范围       4.技术规格书下载(PDF文档)Vub嘉泰姆

5.产品封装       6.电路原理图  Vub嘉泰姆

7.相关产品Vub嘉泰姆

   产品概述 返回TOPVub嘉泰姆


The CXAC85193A CXAC85193B CXAC85193C CXAC85193D series are high performance fixed frequency current mode controllers. They are specifically designed for Off-Line and DC-to-DC converter applications offering the designer a cost effective solution with minimal external components. These integrated circuits feature a trimmed oscillator for precise duty cycle control, a temperature compensated reference, high gain error amplifier, current sensing comparator, and a high current totem pole output ideally suited for driving a power MOSFET. Also included are protective features consisting of input and reference under voltage lockouts each with hysteresis, cycle-by-cycle current limiting, programmable output dead time, and a latch for single pulse metering. These devices are available in 8-pin dual-in-line ceramic and plastic packages as well as the 8-pin plastic surface mount (SO-8). And 14-pin plastic surface mount (SO-14). SO-14 package Figure Teng column output stage has a separate power and ground pins. Difference between members of this series is the under-voltage lockout thresholds. TheCXAC85193A CXAC85193B CXAC85193C CXAC85193D has UVLO thresholds of 16 V (on) and 10 V (off), ideally suited for off-line converters. The corresponding thresholds for the CXLE8941B are 8.5 V and 7.9 V.

   产品特点 返回TOPVub嘉泰姆


 Trimmed Oscillator Discharge Current for Precise Duty Cycle Control Vub嘉泰姆

 Current Mode Operation to 500 kHz Vub嘉泰姆

 Automatic Feed Forward Compensation Vub嘉泰姆

 Latching PWM for Cycle-By-Cycle Current Limiting Vub嘉泰姆

 Internally Trimmed Reference with Under voltage Lockout Vub嘉泰姆

 High Current Totem Pole Output Vub嘉泰姆

 Under voltage Lockout with hysteresis Vub嘉泰姆

 Low Start-Up and Operating CurrentVub嘉泰姆

   应用范围 返回TOPVub嘉泰姆


   aVub嘉泰姆

   技术规格书(产品PDF) 返回TOP Vub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!Vub嘉泰姆

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产品封装图 返回TOPVub嘉泰姆


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电路原理图 返回TOPVub嘉泰姆


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