DESCRIPTION
   The PT5622 is an electronic ballast controller IC intended for dimming product with ordinary switch. The features of the controller IC include negative-feedback closed-loop control of the lamp current, programmable preheat time and preheat frequency, low start-up current, precise oscillating frequency and easy applications. PT5622 is available in both DIP16/SOP16 packages.

FEATURES
• Electronic ballast IC with dimming function using
   ordinary switches
• Integrated MCU
• Negative-feedback control of the lamp current,
   supporting low luminance ignition
• 2/3-level selection available for low to high or high
   to low luminance dimming mode
• Programmable preheat time
• Programmable preheat frequency, sweeping
   frequency ignition
• Programmable delay time from switch-off to reset
   state
• Programmable delay time from switch-on to
   preheat mode
• Fixed dead time
• Supporting DIP16/SOP16 packages

APPLICATION
• Adjustable to various types of fluorescent
   lamps/CFLs