HT7L5820 Overview
HT7L5820/HT7L5821 Integrated PFC and Quasi-Resonant Current Mode PWM Controller.
HT7L5820 Key Features
- Integrated Transition Mode (TM) PFC controller and Quasi-Resonant (QR) flyback controller
- Wide AC input range from 85VAC to 265VAC
- Integrated 650V JFET quick high voltage start-up
- Integrated THD PFC stage optimiser
- Brown-out and brown-in protection
- Internal accurate feedback reference voltage: ±2%
- Internal 9.6ms PWM soft-start
- High/Low line over-power pensation
- FB pin protection (Auto Recovery)
- Over-power and overload protection -- Short-circuit protection -- Open-loop protection