CS5124集成电路（IC）的PMIC-稳压器-DCDC开关式控制器规格书PDF中文资料

CS5124属于集成电路（IC）的PMIC-稳压器-DCDC开关式控制器。由安森美半导体公司制造生产的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。

High Performance, Integrated Current Mode PWM Controllers

The CS5124/6 is a fixed frequency current mode controller designed specifically for DC–DC converters found in the telecommunications industry. The CS5124/6 integrates many commonly required current mode power supply features and allows the power supply designer to realize substantial cost and board space savings. The product matrix is as follows:

CS5124: 400 kHz w/VBIAS Pin, 195 mV first current sense threshold.

CS5126: 200 kHz w/SYNC Pin, 335 mV first current sense threshold.

The CS5124/6 integrates the following features: Internal Oscillator, Slope Compensation, Sleep On/Off, Undervoltage 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 CS5124/6 has supply range of 7.7 V to 20 V and is available in 8 pin SO narrow package.

Features

• Line UVLO Monitoring

• Low Current Sense Voltage for Resistive Current Sensing

• External Synchronization to Higher or Lower Frequency Oscillator (CS5126 Only)

• Bias for Start Up Circuitry (CS5124 Only)

• Thermal Shutdown

• Sleep On/Off Pin

• Soft Start Timer

• Leading Edge Blanking

• Direct Optocoupler Interface

• 90 ns Propagation Delay

• 35 ns Driver Rise and Fall Times

• Sleep Mode