LC5546LD
Overview
The LC5546AD and LC5546LD are isolated LED drivers in which a power MOSFET and a control IC are highly integrated. The IC provides the systems that can comply with the harmonics standard (IEC61000-3-2 Class C) in all conditions, including a light load condition.
- Built-in On-time Control Circuit (High Power Factor Achieved by Average Current Control)
- Built-in Startup Circuit (Reduced Numnber of External Components)
- 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 Pin Capacitor)
- Leading Edge Blanking Function
- Built-in Maximum On-time Limitation Function
- Protections Include: Overcurrent Protection (OCP): Pulse-by-Pulse VCC Pin Overvoltage Protection (VCC_OVP) OCP Pin Overvoltage Protection (OCP_OVP) OVP Pin Overvoltage Protection (OVP_OVP) Overload Protection (OLP) Thermal Shutdown (TSD) Package DIP8 Not to scale Selection Guide
