LC5545LD Description
The LC5540LD series are isolated LED drivers in which a power MOSFET and a control IC are highly integrated. The IC provides the systems that can ply with the harmonics standard (IEC61000-3-2 Class C) in all conditions, including a light load condition. These systems, moreover, can be achieved without an input electrolytic capacitor.
LC5545LD Key Features
- Built-in On-time Control Circuit (High Power Factor Achieved by Average Current Control)
- Built-in Startup Circuit (Reduced Numnber of External ponents)
- Soft Start Function (Startup Stress Reduction for Power MOSFET and Secondary Rectifier Diode)
- Bias Assist Function (Improved Startup Performance, VCC Voltage Drop Suppresion in Operation, Reduced Capacitance of VCC
- Leading Edge Blanking Function
- Built-in Maximum On-time Limitation Function
- Protections Include
- Electrical Characteristics
- Power MOSFET On-resistance and Output Power
- Based on the thermal ratings; the allowable maximum output powers can be up to 120% to 140% of the rated values. However