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LD5525 CCM+QR Mode PWM Controler

 2016-09-21

【產品特性】

Multi-Mode PWM Controller of Flyback with Integrated BNI/BNO and Protection
• Ultra Low Startup Current (5uA)
• Multi-mode Controller (QR+CCM)
• Green Mode Control

【產品應用】

Switching AC/DC Adaptor

【文字介紹】

In order to enhance the efficiency performance, the LD5525 integrates the multi-mode PWM controller, which consists of Quasi-Resonant (QR) PWM control for light load condition and Continue Conduction Mode (CCM) for heavy load condition. Moreover, the QR controller not only gains the system performance, but also brings the worse EMI capability, while the frequency swapping function of LD5525 can reduce the EMI emission of SMPS and helps the power circuit designers to simply deal with EMI filter and saves several component and developing time.