LD5521 Datasheet | Leadtrend

07/24/2015 Quasi-Resonant PWM Flyback Controller with Frequency Swapping and Integrated Protections REV. 01 General Description The LD5521 integrate a quasi-resonant PWM control function into a SOT-26 package. It takes less ponents counts or circuit space, especially ideal for those total solutions of low cost. The implemented functions include low startup current, green-mode power-saving operation, leading-edge blanking of the current sensing and internal soft driving. It also Features more protections like OLP (Over Load Protection) and OVP (Over Voltage Protection) to prevent circuit damage occurred under abnormal conditions. Furthermore, the QR jitter function could reduce...