VK05CFL datasheet(1/14 Pages) STMICROELECTRONICS

Part #	VK05CFL

Description	ELECTRONIC DRIVER FOR CFL APPLICATION

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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December 2003

1/14

®

VK05CFL

ELECTRONIC DRIVER FOR CFL APPLICATION

s

EMITTER SWITCH POWER OUTPUT STAGE

s

INTEGRATED ANTIPARALLEL COLLECTOR

SOURCE DIODE

s

INTEGRATED DIAC FUNCTION

s

NOMINAL WORKING FREQUENCY

SETTABLE BY EXTERNAL CAPACITOR

s

IGNITION FREQUENCY SET BY LOAD

DESCRIPTION

The VK05CFL is a monolithic device housed in a

standard

SO-8

package,

made

by

using

STMicroelectronics

proprietary

VIPower

M3

Technology. This device is intended both for the

low side and the high side driver in half bridge CFL

applications. This means that it is possible to

realize a

complete H-bridge

by

using

two

VK05CFL

devices:

one

connected

in

HSD

configuration and the other connected in LSD

configuration. In the VK05CFL used in HSD

configuration, the diac pin must be connected to

source pin. Both diac functionality and discharge

circuit for external diac capacitor are integrated.

By an external capacitor it is possible to choose

the nominal working frequency without influence

on the ignition one.

TYPE

BV

ICrms

IPeak

VK05CFL

520 V

0.25A

1.5A

SO-8

BLOCK DIAGRAM

-

+

osc

2Vref

-

+

Diac

sec

diac

Source

Collector

5Vref

R

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