VK05

® VK05CFL ELECTRONIC DRIVER FOR CFL APPLICATION TYPE VK05CFL BV 520 V ICrms 0.25A IPeak 1.5A EMITTER SWITCH POWER OUTPUT STAGE INTEGRATED ANTIPARALLEL COLLECTOR SOURCE DIODE s INTEGRATED DIAC FUNCTION s NOMINAL WORKING FREQUENCY SETTABLE BY EXTERNAL CAPACITOR s IGNITION FREQUENCY SET BY LOAD s s SO-8 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 BLOCK DIAGRAM 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. Collector diac Diac sec osc R 5Vref 2Vref + + Source September 2002 1/14 VK05CFL ABSOLUTE MAXIMUM RATING Symbol VCS Isec Vsec ICM IOSC VOSC Tj Tstg Parameter Collector-Source Voltage Input Current (secondary) Input Voltage (secondary) Collector Peak Current Osc Pin Current Osc Pin Voltage Max Operating Junction Temperature Storage Temperature Range Max 520 -100 140 Internally limited -1.8 1.8 100 Internally limited -40 150 -55 150 Min ...