AL1666 Overview
The AL1666 is a high performance single stage Flyback and Buckboost controller, targeting dimmable LED lighting application. It is a primary side regulation (PSR) controller which can provide accurate Constant Current (CC) regulation without opto-coupler and secondary control circuitry. It is operating at BCM mode which results in good EMI and efficiency, and keeps high PF and low THD under universal input voltage.
AL1666 Key Features
- Primary Side Regulation without Opto-Coupler
- Valley Switching for Low Switching Loss
- Support Analog and PWM-to-DC Dimming
- Analog/PWM-to-DC Dimming Range: 1% to 100%
- Tight CS Reference Voltage 0.4V±1.5%
- High PF>0.9 and Low THD<20%
- High Efficiency
- Internal Protections
- Under Voltage Lock Out (UVLO)
- Output Over Voltage Protection (OVP)