IRS2168DSTRPBF

The IRS2168D is a fully integrated, fully protected 600 V ballast control IC designed to drive all types of fluorescent lamps. The IRS2168D is based on the popular IR2166 control IC with additional improvements to increase ballast performance. The PFC circuitry operates in critical conduction mode and provides high PF, low THD and DC bus regulation. The IRS2168D features include programmable preheat and run frequencies, programmable preheat time, programmable PFC over-current protection, closed-loop half-bridge ignition current regulation, and programmable end-of-life protection. Comprehensive protection features such as protection from failure of a lamp to strike, filament failures, end-of-life protection, DC bus undervoltage reset as well as an automatic restart function, have been included in the design.

• PFC, ballast control and 600 V half-bridge driver in one IC
• Critical-conduction mode boost-type PFC
• Programmable PFC over-current protection
• Programmable half-bridge over-current protection
• Programmable preheat frequency
• Programmable preheat time
• Programmable ignition ramp
• Programmable run frequency
• Closed-loop ignition current regulation
• RoHs compliant
• Fixed internal 1.6 µs HO and LO deadtime
• Voltage-controlled oscillator (VCO)
• End-of-life window comparator pin
• Internal 65-event current sense up/down fault counter
• DC bus undervoltage reset
• Lamp removal/auto-restart shutdown pin
• Internal bootstrap MOSFET
• Internal 15.6 V Zener clamp diode on Vcc
• Micropower startup (250 µA)
• Latch immunity and ESD protection