LD7580A Datasheet | Leadtrend Technology

9/5/2012 PWM Current Mode Controller with Quasi-Resonant Operation REV：00 General Description The LD7580A is a current mode PWM controller and Features quasi resonant operation. It operates in DCM at light load to optimize the efficiency and operates in boundary condition at high power level. The LD7580A is integrated with high voltage startup circuit, green-mode power-saving operation, and Features - - - - - - - - - - High-Voltage (500V) Startup Circuit Current Mode Control Minimum Drain Voltage Switching Green Mode Control at Light Load UVLO (Under Voltage Lockout) LEB (Leading-Edge Blanking) on CS Pin Over Voltage parator on VCC and QRD Pin OLP (Over Load Protection)...