CS51022A数据手册集成电路（IC）的PMIC-稳压器-DCDC开关式控制器规格书PDF

描述 Description

The CS51021/22/23/24 Fixed Frequency PWM Current Mode Controller family provides all necessary features required for AC-DC or DC-DC primary side control. Several features are included eliminating the additional components needed to implement them externally. In addition to low start-up current (75uA) and high frequency operation capability, the CS51021/22/23/24 family includes over-voltage and under-voltage monitoring, externally programmable dual threshold over-current protection, current sense leading edge blanking, current slope compensation, accurate duty cycle control and an externally available 5V reference. The CS51021 and CS51023 feature bidirectional synchronization capability, while the CS51022 and CS51024 offer a sleep mode with 100uA maximum IC current consumption. The CS51021/22/23/24 family is available in a 16 lead narrow body SO package.

特性 Features

• Under-voltage Protection Monitor
• Fixed Frequency Current Mode Control
• Accurate Maximum Duty Cycle Limit
• Bidirectional Synchronization (CS51021A)
• Leading Edge Current Sense Blanking
• Programmable Slope Compensation
• 75 mA Max.Startup Current
• 50ns PWM Propagation Delay
• Programmable Soft Start
• 1.0 MHz Switching Frequency
• Programmable Dual Threshold Overcurrent Protection with Delayed
• 1.0 A Sink/Source Gate Drive
• 100 A Max Sleep Current (CS51022A)
• Over-voltage Protection Monitor with Programmable Hysteresis
• Pb-Free Packages are Available

应用 Application

• 36 - 72V Telecom
• DC-DC Telecom Bricks

简介

CS51022A属于集成电路（IC）的PMIC-稳压器-DCDC开关式控制器。由制造生产的CS51022ADC-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。