Infineon Technologies IRS2168DSTRPBF

Description
The IRS2168D is a fully integrated, fully protected 600 V ballast control IC designed to drive all types of fluorescent lamps. The IRS21680 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.

Features
Fixed internal 1.6 us HO and LO deadtime
PFC, ballast control, and 600 V half-bridge driver in one IC
Voltage-controlled oscillator (VCO)
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
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

Applications
One-chip ballast control solution
Wide range PFC for universal input and multi-lamp ballasts
Ultra low THD
Closed-loop ignition regulation for reliable lamp ignition
End-of-Life window comparator with internal OTAL
Lamp removal/auto-restart function
Fault counter for robust noise immunity
Brown-out protection and reset
Internal bootstrap MOSFET