AL1666A Overview
The DIODESTM AL1666A is a high performance single stage Flyback and Buck-boost controller, targeting dimmable LED lighting application. It is a primary side regulation (PSR) controller which can provide accurate Constant Current (CC) regulation without optocoupler 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...
AL1666A 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)