同步降压型PWM控制器CXSD6287采用固定的200kHz开关频率电压模式同步PWM控制器驱动双N通道mosfet集成了控制监控保护功能 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
目录7.相关产品 产品概述 返回TOP The CXSD6287 uses fixed 200kHz switching frequency, voltage mode, synchronous PWM controller which drives dual N-channel MOSFETs. The device integrates the control, monitoring and protection functions into a single package, provides one controlled power output with under-voltage protection. The CXSD6287 provides excellent regulation for output load variation. The internal 1.2V temperature-compensated reference voltage is designed to meet the requirement of low output voltage applications. An built-in digital softstart with fixed soft-start interval prevents the output voltage from overshoot as well as limiting the input current. The CXSD6287 with excellent protection functions: POR and UVP. The Power-On-Reset (POR) circuit can monitor VCC supply voltage exceeds its threshold voltage while the controller is running, and a built-in digital soft-start provides output with controlled voltage rise. The UnderVoltage Protection (UVP) monitors the voltage of FB pin for short-circuit protection. When the VFB is less than 50% of VREF (0.6V), the controller will shutdown the IC directly.产品特点 返回TOP · Single 12V Power Supply Required · Fast Transient Response - 0~90% Duty Ratio · 1.2V Reference with 1% Accuracy · Shutdown Function by Controlling COMP Pin Voltage · Internal Soft-Start (5.1ms) Function · Voltage Mode PWM Control Design · Under-Voltage Protection · 200kHz Fixed Switching Frequency · SOP-8P Package · Lead Free and Green Devices Available (RoHS Compliant) 应用范围 返回TOP · Graphics Card · Mother Board · SMPS 技术规格书(产品PDF) 返回TOP 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!
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