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BD9889FV Datasheet(PDF) 2 Page - Rohm |
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BD9889FV Datasheet(HTML) 2 Page - Rohm |
2 / 5 page 2/4 REV. A ○Electric Characteristics(Ta=25℃,VCC=7V) Parameter Symbol Limits Unit Conditions MIN. TYP. MAX. ((WHOLE DEVICE) ) Operating current Icc1 - 11.0 17.0 mA CT=0.5V Stand-by current Icc2 - 2 10 μA ((OVER VOLTAGE DETECT)) FB overvoltage detect voltage Vovf 2.20 2.40 2.60 V ((STAND BY CONTROL)) Stand-by voltage H VstH 1.6 - VCC V System ON Stand-by voltage L VstL -0.3 - 0.8 V System OFF 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 μA ((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 BOSC frequency FBOSC 266 280 294 Hz BRT=33kΩ、BCT=0.050μF ((OSC BLOCK)) OSC constant current ICT 1.35/RT 1.5/RT 1.65/RT A OSC Max voltage VoscH 1.8 2.0 2.2 V fCT=60kHz OSC Min voltage VoscL 0.3 0.5 0.7 V fCT=60kHz MAX DUTY MAXDUTY 44 46.5 49 % fCT=60kHz Soft start current Iss 1.0 2.0 3.0 μA 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 Ω ((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 input voltage range VREF 0.60 - 1.50 V ((FEED BACK BLOCK)) IS threshold voltage Vis - VREF - V VREF voltage VS threshold voltage Vvs 1.220 1.250 1.280 V IS source current 1 Iis1 - - 1.5 μA DUTY=2.0V IS source current 2 Iis2 13.0 20.0 27.0 μA DUTY=0V、IS=0.5V VS source current Ivs - - 1.0 μA ((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 Ω Isink = 10mA NAch output source resistance RsourceNA - 8 16 Ω Isource = 10mA NBch output sink resistance RsinkNB - 5 10 Ω Isink = 10mA NBch output source resistance RsourceNB - 8 16 Ω Isource = 10mA Drive output frequency fOUT 58.5 60.0 61.5 KHz RT=18kΩ、CT=400pF ((COMP BLOCK)) Over voltage detect VCOMPH 3.0 3.1 3.2 V 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 to be radiation-resistant.) |
Similar Part No. - BD9889FV_09 |
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Similar Description - BD9889FV_09 |
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