Advanced Feedback Dimming Ballast Control IC

The KA7543 is an advanced lamp current feedback dimming control IC. This ballast control IC provides all of the necessary features to implement wide range dimming control, soft start and constant power consumption for intelligent electronic ballast systems. The KA7543 is optimized for advanced electronic ballast systems requiring minimum board area. External component counts CAN be reduced by adopting the KA7543. Current feedback control method of the inverter status is one of the most attractive merits in KA7543. Internal soft start circuitry eliminates the need for external soft start Discrete components. Voltage controlled soft dimming circuit is built into the IC to control the lighting output in a wide range. Protection circuitry, no lamp protection, abnormal protection, one lamp detection, UVLO, restart on lamp adding , have been added. By Fairchild Semiconductor
KA7543 's PackagesKA7543 's pdf datasheet
KA7543D SOP




KA7543 Pinout, Pinouts
KA7543 pinout,Pin out
This is one package pinout of KA7543,If you need more pinouts please download KA7543's pdf datasheet.

KA7543 Application circuits
KA7543 circuits
This is one application circuit of KA7543,If you need more circuits,please download KA7543's pdf datasheet.


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