HT7L5820/HT7L5821 Integrated PFC and Quasi-Resonant
Current Mode PWM Controller
Features
• Integrated Transition Mode ...
HT7L5820/HT7L5821 Integrated PFC and Quasi-Resonant
Current Mode PWM Controller
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 compensation FB pin protection (Auto Recovery)
♦♦ Over-power and overload protection ♦♦ Short-circuit protection ♦♦ Open-loop protection External triggering and adjustabe over-temperature protection – RT Pin VCC pin OVP – latched Internal over-temperature shutdown – 140°C 16-pin NSOP package
Applications
AC/DC NB adapters Open-frame SMPS Battery chargers General LED lighting applications Industrial, commercial, and residential fixtures
Gener...
