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
