NCL30060BDR2G

The NCL30060BDR2G is a high PF offline single stage LED Driver with high voltage start-up. The switch mode power supply controller intended for low to medium power single stage power factor (PF) corrected LED drivers. It employs a constant on-time control method to ensure near unity power factor across a wide range of input voltages and output power. It can be used for isolated flyback as well as buck topologies. The device offers a suite of robust protection features to ensure safe operation under a range of fault conditions. It is intended for constant voltage (CV) regulated output driver where a DC-DC converter or linear regulator in the second stage controls the current to the LEDs so the output short-circuit protection detector function has been disabled.

• Built-in high voltage start-up circuit
• Direct opto-coupler feedback connection
• Constant on-time PWM control
• Quasi-resonant switching
• Low operating current (1.6mA typical)
• Integrated 12V (typical) gate drive clamp
• Frequency dithering for reduced EMI profile
• Enable/disable function
• Dynamic self-supply (DSS) operation
• Maximum on time protection
• Integrated brown-out
• Over-voltage protection
• Cycle-by-cycle overcurrent protection
• Output winding short-circuit protection
• Thermal shutdown
• High voltage start-up
• Frequency dithering
• Input brownout protection
• Resistor based on time programming
• High power factor and low THD
• Reduced EMI generation
• Robust MOSFET drive
• Improves fault handling
• Eases safety testing

Applications

LED Lighting, Lighting