大功率DC转换器PWM控制CXSD62395同步整流buck拓扑中驱动两个N通道mosfet快速瞬态响应恒定300kHz开关频率

发布时间:2020-05-23 09:17:34 浏览次数:358 作者:oumao18 来源:嘉泰姆
摘要:CXSD62395提供简单、单反馈、电压模式控制和快速瞬态响应。它包括一个300KHz自由运行的三角波振荡器。误差放大器采用15MHz增益带宽产品,为快速瞬态性能提供高转换带宽。由此产生的PWM占空比在0%到80%之间。参考电压为0.8V,精度为2%CXSD62395具有内部软启动,并在软启动间隔期间执行逐周电流限制。
大功率DC转换器PWM控制CXSD62395同步整流buck拓扑中驱动两个N通道mosfet快速瞬态响应恒定300kHz开关频率

目录

1.产品概述       2.产品特点     6RU嘉泰姆

3.应用范围       4.技术规格书下载(PDF文档)6RU嘉泰姆

5.产品封装       6.电路原理图  6RU嘉泰姆

7.相关产品6RU嘉泰姆

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The CXSD62395 provides complete control and protection for a DC-DC converter for high power applications. It is designed to drive two N-channel MOSFETs in a synchronous-rectified buck topology. The CXSD62395 integrates all of the control, and protection functions into a single package. The CXSD62395 provides simple, single feedback loop, voltage-mode control with fast transient response. It includes a 300KHz free-running triangle-wave oscillator. The error amplifier features a 15MHz gain-bandwidth product which provides high converter bandwidth for fast transient performance. The resulting PWM duty ratio ranges from 0% to 80%. The reference voltage is 0.8V, 2% accuracy. The CXSD62395 has internal soft start and executes cycle-by-cycle current limit during soft start interval. The CXSD62395 monitors the current by using the RDS(ON) of the low-side MOSFET which eliminates the need for a current sensing resistor. The under-voltage protection function monitors voltage at FB pin. The over-current and under-voltage events after soft-start interval trigger hiccup mode protection.

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 Drives Two N-Channel MOSFETs 6RU嘉泰姆

 Operates at 5V Supply Voltage 6RU嘉泰姆

 Voltage-Mode PWM Control 6RU嘉泰姆

 Fast Transient Response 6RU嘉泰姆

 0.8V, 2% Accuracy Reference Voltage 6RU嘉泰姆

 Internal Soft Start 6RU嘉泰姆

 Constant 300kHz Switching Frequency 6RU嘉泰姆

 Over-Current Fault Monitors by Using Low-Side MOSFET RDS(ON) 6RU嘉泰姆

 Output Under-Voltage Protection6RU嘉泰姆

   应用范围 返回TOP6RU嘉泰姆


 16V to 30V Input High Power DC-DC Regulators 6RU嘉泰姆

 Low-Voltage Distributed Power Supplies6RU嘉泰姆

   技术规格书(产品PDF) 返回TOP 6RU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6RU嘉泰姆

 QQ截图20160419174301.jpg6RU嘉泰姆

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电路原理图 返回TOP6RU嘉泰姆

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