BD9886FV-E2 ROHM

1/4 STRUCTURE Silicon Monolithic Integrated Circuit NAME OF PRODUCT DC-AC Inverter Control IC TYPE FUNCTION 2ch control with Push-Pull Lamp current and voltage sense feed back control Sequencing easily achieved with Soft Start Control Short circuit protection with Timer Latch Under Voltage Lock Out Short circuit protection with over voltage Mode-selectable the operating or stand-by mode by stand-by pin Synchronous operating the other BD9886FV ICs BURST mode controlled by PWN and DC input Absolute Maximum RatingsTa = 25 Parameter Symbol Limits Unit Supply Voltage VCC 15 V Operating Temperature Range Topr -40+90 Storage Temperature Range Tstg -55+125 * Power Dissipation Pd 850 mW Maximum Junction Temperature Tjmax +125 * Pd derated at 8.5mW/ for temperature above Ta = 25 (When mounted on a PCB 70.0mm70.0mm1.6mm) Recommended operating condition Parameter Symbol Limits Unit Supply voltage VCC 5.014.0 V CT oscillation frequency fCT 20150 kHz BCT oscillation frequency fBCT 0.050.50 kHz REV. B 2/4 Electric CharacteristicsTa=25VCC=7V Limits Parameter Symbol Unit Conditions MIN. TYP. MAX. WHOLE DEVICE Operating current Icc1 11.0 17.0 mA CT=0.5V Stand-by current Icc2 2 10 A OVER VOLTAGE DETECT FB over voltage detect voltage Vovf 2.20 2.40 2.60 V STAND BY CONTROL Stand-by voltage H VstH 1.6 VCC V System Stand-by voltage L VstL -0.3 0.8 V System Stand-by hysteresis Vst 0.08 0.18 0.28 V TIMER LATCH Timer Latch voltage Vcp 1.9 2.0 2.1 V Timer Latch current Icp 0.5 1.0 1.5 A BURST MODE BOSC Max voltage VburH 1.94 2.0 2.06 V fBCT=0.2kHz BOSC Min Voltage VburL 0.4 0.5 0.6 V fBCT=0.2kHz BOSC constant current IBCT 1.35/BRT 1.5/BRT 1.65/BRT A OSC constant current fBCT 266 280 294 Hz BRT=33kBCT=0.050F OSC BLOCK BOSC constant current ICT 1.35/RT 1.5/RT 1.65/RT A VoscH 1.8 2.0 2.2 V fCT=60kHz OSC Max voltage VoscL 0.3 0.5 0.7 V fCT=60kHz OSC Min voltage MAXDUTY 44 46.5 49 % fCT=60kHz MAX DUTY Iss 1.0 2.0 3.0 A Soft start current IS COMP detect Voltage Visc 0.45 0.50 0.55 V SS COMP detect voltage Vss 2.0 2.2 2.4 V SRT ON resistance RSRT 200 400 UVLO BLOCK Operating voltage VuvloH 4.100 4.300 4.500 V Shut down voltage VuvloL 3.900 4.100 4.300 V Operating voltage (External UVLO) Vuvlo1 2.160 2.220 2.280 V Lock out voltage (External UVLO) Vuvlo2 2.242 2.315 2.388 V Hysteresis width Vuvlo 0.068 0.095 0.122 V REG BLOCK REG output voltage VREG 3.038 3.100 3.162 V REG source current IREG 5.0 mA VREF voltage Vref 1.225 1.250 1.275 V VREF=Open FEED BACK BLOCK IS threshold voltage Vis 1.225 1.250 1.275 V VREF=Open Vvs 1.220 1.250 1.280 V VS threshold voltage IS source current 1 Iis1 1.5 A DUTY=2.0V IS source current 2 Iis2 13.0 20.0 27.0 A DUTY=0VIS=0.5V VS source current Ivs 1.0 A OUTPUT BLOCK NAch output voltage H VoutNAH VCC-0.3 VCC-0.1 V NBch output voltage H VoutNBH VCC-0.3 VCC-0.1 V NAch output voltage L VoutNAL 0.1 0.3 V NBch output voltage L VoutNBL 0.1 0.3 V NAch output sink resistance RsinkNA 5 10 NAch output source resistance RsourceNA 8 16 NBch output sink resistance RsinkNB 5 10 NBch output source resistance RsourceNB 8 16 Drive output frequency fOUT 58.5 60.0 61.5 KHz RT=18kCT=400pF COMP BLOCK Under voltage detect VCOMPL 0.620 0.640 0.660 V PROTECT CLOCK Normal output voltage VPH 2.9 3.1 3.3 V Protect output voltage VPL 0.5 V This product is not designed for normal operation with in a radio active environment. REV. B