Resonant Lamp Ballast Controller

The UC3872 is a resonant lamp ballast controller optimized for driving cold cathode fluorescent, neon, and other gas discharge lamps. The res- onant power stage develops a sinusoidal lamp drive voltage, and mini- mizes switching loss and EMI generation. Lamp intensity adjustment is accomplished with a buck Regulator which is synchronized to the external power stages resonant frequency. Suitable for automotive and battery powered applications, the UC3872 draws only 1A when disabled. Soft start and open lamp detect circuitry have been incorporated to mini- mize component stresses. Open lamp detection is enabled at the comple- tion of a soft start cycle. The chip is optimized for smooth duty cycle control to 100%. Other features include a precision 1.2% reference, undervoltage lockout, and accurate minimum and maximum frequency control. By Texas Instruments
UC1872 's PackagesUC1872 's pdf datasheet

UC1872 Pinout, Pinouts
UC1872 pinout,Pin out
This is one package pinout of UC1872,If you need more pinouts please download UC1872's pdf datasheet.

UC1872 Application circuits
UC1872 circuits
This is one application circuit of UC1872,If you need more circuits,please download UC1872's pdf datasheet.

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