DESCRIPTION
The Electronic Ballast controller chip has been designed in a bipolar process. It is housed in a 20-lead dual-in-line plastic package. The control chip contains the equivalent of two (2) switched mode power supply control circuits. The first SMPS controller is a DC-to-DC converter operating in the discontinuous current conduction mode.

FEATURES:
• Complete PFC correction and dimming ballast control on one IC
• Low line current distortion PFC
• Selectable variable frequency modes
• Programmable pre-hit and ignition
• Lamp over-voltage protection
• PFC over-voltage protection for preventing over-shooting due to load removal