onsemi NCL30486 Smart-Dimmable CC/CV PSR Controllers

onsemi NCL30486 Smart-Dimmable Constant Current (CC) / Constant Voltage (CV) Primary Side Regulation (PSR) Controllers are high power factor single-stage PWM controllers for flyback/buck-boost/sepic/boost topologies. These controllers operate in a quasi-resonant mode to provide high efficiency. The NCL30486 controllers are able to tightly regulate a constant LED current from the primary side. These controllers are highly integrated with a minimum number of external components. The NCL30486 controllers support analog and digital dimming with two dedicated dimming control input pins that are ideal for smart LED lighting applications.

Features

High voltage startup
Quasi-resonant peak current-mode control operation
Primary side feedback
CC/CV accurate control V_in up to 320V_rms
±2% (typical) tight LED constant current regulation
Digital power factor correction
Analog and digital dimming
Cycle by cycle peak current limit
ADIM:
- Analog output current with DC signal and PWM output current with PWM signal
PDIM:
- Analog output current with PWM signal
DIM CV mode

Linear/quadratic optional dimming curve
Wide operating V_CC range
-40°C to 125°C operating temperature range
Robust protection features:
- Brown-out
- Over Voltage Protection (OVP) on V_CC
- Constant voltage / LED open circuit protection
- Winding short circuit protection
- Secondary diode short protection
- Output short circuit protection
- Thermal shutdown
- Line over-voltage protection

Applications

Integral LED bulbs
LED power driver supplies
LED light engines

onsemi NCL30486 Smart-Dimmable CC/CV PSR Controllers

Features

Applications

Typical Application Circuit

Performance Graph

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