CS5124中文资料控制器数据手册ONSEMI规格书

描述 Description

The CS5124 is an Integrated Current Mode PWM Controller designed specifically for dc-dc converters found in the 48V telecommunications industry. This PWM Controller integrates many commonly required current mode power supply features and allows the power supply designer to realize substantial cost and board space savings. CS5124: 400kHz w/VBIAS Pin, 195mV first current sense thresholdThe CS5124 integrates the following features: Internal Oscillator, Slope Compensation, Sleep On/Off, Under Voltage Lock Out, Thermal Shutdown, Soft Start Timer, Low Voltage Current Sense for Resistive Sensing, Second Current Threshold for Pulse by Pulse Over Current Protection, a Direct Optocoupler Interface and Leading Edge Current Blanking.The CS5124 Integrated Current Mode PWM Controller has supply range of 7.7V to 20V and can be powered from a 36-75.0 volt telecom supply.

特性 Features

• Line UVLO Monitoring
• Low Current Sense Voltage for Resistive Current Sensing
• Bias for Start up Circuitry
• Thermal Shutdown
• Sleep On/Off Pin
• Soft Start Timer
• Leading Edge Blanking
• Direct Optocoupler Interface
• 90ns Propagation Delay
• 35ns Driver Rise and Fall Times
• Sleep Mode
• Pb-Free Package is Available

应用 Application

• Power Over Ethernet (PoE)
• IP / VOIP Phone

简介

CS5124属于集成电路（IC）的PMIC-稳压器-DCDC开关式控制器。由ONSEMI制造生产的CS5124DC-DC 开关控制器PMIC（电源管理集成电路）DC 到 DC 开关式控制器是用于高效率电路的稳压 IC，其配置为生成高于（突升或步升）或低于（突降或步降）输入电源的输出电源电压。其他拓扑结构可能包括：降压-升压、反激、正激、Cuk、SEPIC、全桥、半桥和推挽式。这些器件不同于需要最小电压并“烧尽”多余电压的线性稳压器。