VK05CFLTR-E STMicroelectronics

VK05CFL ELECTRONIC DRIVER FOR CFL APPLICATION TYPE B I I V Crms Peak VK05CFL 520 V 0.25A 1.5A EMITTER SWITCH POWER OUTPUT STAGE INTEGRATED ANTIPARALLEL COLLECTOR SOURCE DIODE INTEGRATED DIAC FUNCTION NOMINAL WORKING FREQUENCY SETTABLE BY EXTERNAL CAPACITOR IGNITION FREQUENCY SET BY LOAD 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 configuration, the diac pin must be connected to low side and the high side driver in half bridge CFL applications. This means that it is possible to source pin. Both diac functionality and discharge circuit for external diac capacitor are integrated. realize a complete H-bridge by using two By an external capacitor it is possible to choose VK05CFL devices: one connected in HSD the nominal working frequency without influence configuration and the other connected in LSD on the ignition one. configuration. In the VK05CFL used in HSD BLOCK DIAGRAM Collector diac Diac sec osc - + + 2Vref R - 5Vref Source December 2003 1/14 Obsolete Product(s) - Obsolete Product(s)VK05CFL ABSOLUTE MAXIMUM RATING Symbol Parameter Min Typ Max Unit V Collector-Source Voltage 520 V CS I Input Current (secondary) -100 140 mA sec V Input Voltage (secondary) Internally limited V sec I Collector Peak Current -1.8 1.8 A CM I Osc Pin Current 100 mA OSC V Osc Pin Voltage Internally limited V OSC T Max Operating Junction Temperature -40 150 C j T Storage Temperature Range -55 150 C stg THERMAL DATA Symbol Parameter Value Unit R Thermal Resistance Junction - lead Max 15 C/W thj-lead R Thermal Resistance Junction - ambient Ma x 52 (*) C/W thj-amb 2 (*) When mounted on a standard single-sided FR-4 board with 100mm of Cu (at least 35m thick). CONNECTION DIAGRAM 5 4 Collector sec Collector osc Collector diac 8 1 Collector Source SO-8 PIN FUNCTIONS Pin Name Pin Function Collector Collector of the NPN high voltage transistor in the cascode configuration. Source Low voltage Power MOSFET source in the cascode configuration and GROUND reference. diac Input of the diac block to start the system up at the beginning. Connection with secondary winding of the voltage transformer, in order to trigger and to supply the sec device. osc Output via to charge external capacitor necessary to set the steady state working frequency. 2/14 Obsolete Product(s) - Obsolete Product(s)