The IR2156 incorporates a high voltage half-bridge
gate driver with a programmable oscillator and state
diagram to form a complete ballast control IC. The
IR2156 features include programmable preheat and
run frequencies, programmable preheat time, programmable
dead-time, and programmable over-current protection.
Comprehensive protection features such as
protection from failure of a lamp to strike,filament failures,
as well as an automatic restart function, have
been included in the design. The IR2156 is available in
both 14 lead PDIP and 14 lead SOIC packages.
Features
Ballast control and half-bridge driver in one IC
Programmable preheat frequency
Programmable preheat time
Internal ignition ramp
Programmable over-current threshold
Programmable run frequency
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