ML4833 Datasheet | Micro Linear

July 2000 PRELIMINARY ML4833- Electronic Dimming Ballast Controller GENERAL DESCRIPTION The ML4833 is a plete solution for a dimmable or a non-dimmable, high power factor, high efficiency electronic ballast. The BiCMOS ML4833 contains controllers for “boost” type power factor correction as well as for a dimming ballast. The ML4833 was designed to minimize the number of external ponents required to build an electronic ballast. The PFC circuit uses a new, simple PFC topology which requires only one loop for pensation. This system produces a power factor of better than 0.99 with low input current THD. An overvoltage protection parator inhibits the PFC section in the event of a...