L6520 Datasheet, PDF (1/19 Pages) STMicroelectronics – Highly integrated ballast controller for TL and CFL

L6520
L6521
Highly integrated ballast controller for TL and CFL
Features
■ Half bridge circuit able to drive both BJT and
MOSFET transistors
■ Very accurate oscillator precision in wide
operating temperature range
■ BJTs' storage time compensation
■ Preheated start and instant start
■ Hard switching protection
■ Overcurrent / voltage protection
■ Choke saturation control
■ End-of-life protection
■ Programmable without capacitors
SO8
Applications
■ Electronic ballasts (TL, Industrial CFL)
■ Integrated CFLs
Table 1. Device summary
Order codes
Package
L6520
L6520TR
L6521
SO8
L6521TR
Packaging
Tube
Tape and reel
Tube
Tape and reel
Figure 1. Block diagram
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Doc ID 16998 Rev 3
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