The NCP1608 is an active power factor correction (PFC) controller designed for use in ac-dc adapters, electronic ballasts, and other medium power off-line converters.
It uses critical conduction mode (CrM) to ensure near unity power factor across a wide range of input voltages and output power.
The controller minimizes the number of external components by integrating safety features, making it suitable for designing robust PFC stages.
It is available in a SOIC-8 package and has features such as near unity power factor, latching PWM for cycle-by-cycle on time control, transconductance error amplifier, high precision voltage reference, low startup and operating current consumption, and various safety features.
The device is suitable for applications such as solid state lighting, electronic light ballasts, AC adapters, TVs, monitors, and all off-line appliances requiring power factor correction.
The device also includes pin function descriptions, maximum ratings, and electrical characteristics.