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Low Voltage Smart Ballast Controller


Highly integrated ballast controller for TL and CFL


STMicroelectronics' L6520/L6521 are highly integrated ballast controllers capable to drive either BJTs or MOSFETS, with a full complement of internal protection circuits, and fully programmable with only resistors. The L6520 has preheating time of 1.5 seconds, while the L6521 has preheating time of .8 seconds.
STMicroelectronics' Low Voltage Smart Ballast Controller

Features
  • Precision oscillator
  • Hard switching protection
  • Choke saturation control
  • End-of-life protection
  • Overcurrent / voltage protection
  • Programmable without capacitors
  • Half bridge circuit able to drive both BJT and MOSFET transistors
  • BJTs' storage time compensation
  • Preheated start and instant start

Digi-Key P/N Manufacturer P/N Description  
497-11128-1-ND L6520TR IC BALLAST CTRL TL/CFL 8-SOIC Datasheet
497-11129-1-ND L6521TR IC BALLAST CTRL TL/CFL 8-SOIC Datasheet
 Available in Tape & Reel (2-ND), Cut Tape (1-ND), and custom Digi-Reel® (6-ND)