IR2156SPBF

The IR2156SPBF is a Ballast Control IC 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 overcurrent protection. Comprehensive protection features such as protection from failure of a lamp to strike, filament failures, as well as an automatic restart function, has 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 start-up (150µA)
• Latch immunity and ESD protection

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