IC Ballast Control, NSOIC 14 - IR2156STRPBF

The IR2156 incorporates a high voltage halfbridge 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 overcurrent 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.

• 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
• Programmable dead time
• DC bus under-voltage reset
• Shutdown pin with hysteresis
• Internal 15.6V zener clamp diode on Vcc
• Micropower startup (150µA)
• Latch immunity and ESD protection