L6521 datasheet(1/19 Pages) STMICROELECTRONICS

Part #	L6521

Description	Highly integrated ballast controller for TL and CFL

PDF	19 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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1 / 19 page

March 2011

Doc ID 16998 Rev 3

1/19

19

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

Applications

■ Electronic ballasts (TL, Industrial CFL)

■ Integrated CFLs

Table 1.

Device summary

Order codes

Package

Packaging

L6520

SO8

Tube

L6520TR

Tape and reel

L6521

Tube

L6521TR

Tape and reel

SO8

Figure 1.

Block diagram

www.st.com

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