Document
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STRUCTURE NAME OF PRODUCT TYPE FUNCTION
Silicon Monolithic Integrated Circuit DC-AC Inverter Control IC
BD9898F、BD9898FV
・ ・ ・ ・ ・ ・ ・ ・ ・ ・ 36V High voltage process 1ch control with Full-Bridge 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 Mode-selectable the operating or stand-by mode by stand-by pin For slave IC, Synchronous operating with BD9215F/FV BURST mode controlled by PWM and DC input Output liner Control by external DC voltage
○Absolute Maximum Ratings(Ta = 25℃)
Parameter Supply Voltage BST pin SW pin BST-SW voltage difference Operating Temperature Range Storage Temperature Range Maximum Junction Temperature Power Dissipation
*1 *2
Symbol VCC BST SW BST-SW Topr Tstg Tjmax Pd
Limits 36 40 36 15 -40~+85 -55~+150 +150 749*1(BD9898F) 1062*2(BD9898FV)
Unit V V V V ℃ ℃ ℃ mW
Pd derate at 6.0mW/℃ for temperature above Ta = 25℃ (When mounted on a PCB 70.0mm×70.0mm×1.6mm) Pd derate at 8.5mW/℃ for temperature above Ta = 25℃ (When mounted on a PCB 70.0mm×70.0mm×1.6mm)
Operating condition
Parameter Supply voltage BST voltage BST-SW voltage difference DRIVER frequency BCT oscillation frequency Symbol VCC BST BST-SW FOUT fBCT Limits 16.0~30.0 ※ 5.0~37.5 5.0~14.0 30~110 0.05~1.00 Unit V V V kHz kHz
Status of this document The Japanese version of this document is the official specification. Please use the translation version of this document as a reference to expedite understanding of the official version. If these are any uncertainty in translation version of this document, official version takes priority.
※For Operation condition of Supply voltage, Please see NOTE FOR USE(4page), more information.
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2/4 ○Electric Characteristics(Ta=25℃、VCC=24V、STB=UVLO=3.0V)
Limits TYP. 5.5 60 - - 2.25 0.110 7.50 - 1.50 2.2 0.20 1.50 85 2 0.5 1.5/BRT 300 1.25 VREFIN 1.25 - 50 - 0.625 0.50 - 3.5 9.0 3.5 9.0 48.5 200 60 4.0 2.1 4.0 0.20 4.0 - 150 300 - -
Parameter ((WHOLE DEVICE)) Operating current Stand-by current ((STAND BY CONTROL)) Stand-by voltage H Stand-by voltage L ((UVLO BLOCK))) Operating voltage (UVLO) Hesteresis width (UVLO) ((REG BLOCK)) REG output voltage REG source current ((OSC BLOCK)) RT pin Voltage Soft start current SS operation start Voltage SS term END Voltage SRT ON resistance ((BOSC BLOCK)) BOSC Max voltage BOSC Min voltage BOSC constant current BOSC frequency ((FEED BACK BLOCK)) IS threshold voltage 1 IS threshold voltage 2 VS threshold voltage IS source current 1 IS source current 2 VS source current IS COMP detect voltage 1 IS COMP detect voltage 2 VREF input voltage range ((OUTPUT BLOCK)) LN output sink resistance LN output source resistance HN output sink resistance HN output source resistance MAX DUTY OFF period Drive output frequency ((TIMER LATCH BLOCK)) Timer Latch setting voltage Timer Latch setting current ((COMP BLOCK))
COMP over voltage detect voltage
Symbol Icc1 Icc2 VstH VstL Vuvlo ⊿Vuvlo VREG IREG VRT ISS VSS_ST VSS_ED RSRT VBCTH VBCTL IBCT fBCT VIS1 VIS2 VVS IIS1 IIS2 IVS VISCOMP1 VISCOMP2 VREFIN RsinkLN RsourceLN RsinkHN RsourceLN MAX DUTY TOFF FOUT VCP ICP VCOMPH ⊿VCOMPH VCT_SYNCH VCT_SYNCL
RSYNC_OUT_sink
RSYNC_OUT_source
MIN. - - 2 -0.3 2.16 0.085 7.35 20 1.05 1.7 0.18 1.35 - 1.94 0.4 1.35/BRT 291 1.225 - 1.22 - 40 - 0.606 - 0.6 1.8 4.5 1.8 4.5 46.0 100 57.9 3.88 1.6 3.88 0.15 3.8 - - - 2.5 -0.3
MAX. 10 140 VCC 0.8 2.34 0.135 7.65 - 1.95 2.7 0.22 1.65 170 2.06 0.6 1.65/BRT 309 1.275 VIS1 1.28 0.9 60 0.9 0.644 - 1.6 7.0 18.0 7.0 18.0 49.5 400 62.1 4.12 2.6 4.12 0.25 4.2 0.5 300 400
VCT_SYNCH
Unit mA μA V V V V V mA V μA V V Ω V V A Hz V V V μA μA μA V V V Ω Ω Ω Ω % ns kHz V μA V V V V Ω Ω V V
Conditions
FOUT=60kHz, FB=GND, BST=OPEN
System ON System OFF
fBCT=0.3kHz fBCT=0.3kHz VBCT=0.2V (BRT=37.8kΩ BCT=0.047μF)
VREF applying voltage DUTY=2.2V DUTY=0V IS=1.0V VREFIN≧1.25V VREFIN= 1V No effect at VREF>1.25V
VBST-VSW=7.0V VBST-VSW=7.0V FOUT=60kHz RT=21k Ω
VSS>1.65V
Hysterisis width (COMP) ((Synchronous Block)) High voltage Low voltage CT_SYNC_OUT sink resistance CT_SYNC_OUT source resistance High voltage input range Low voltage input range
VCT_SYNC_IN_H VCT_SYNC_IN_L
1
(This product is not designed to be radiation-resistant.)
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Package Dimensions
Device Mark
BD9898F
1
BD9898FV
1
Lot No.
SOP28 (Unit:mm) SSOP-B28 (Unit:mm)
Pin Description
PIN No. PIN NAME PGND LN2 HN2 SW2 BST2
CT_SYNC_IN CT_SYNC_OUT
FUNCTION
Ground for FET drivers NMOS FET driver NMOS FET driver Lower rail voltage for HN2 output Boot-Strap input for HN2 output CT synchronous signal input pin CT synchronous signal output pin External adjusting External adjusting GROUND External capacitor from BCT to GND for adjusting the BURST triangle oscillator External resistor from BRT to GND for adjusting the BURST triangle oscillator Control PWM mode and BURST mode Stand-by switch External capacitor from CP to GND for Timer Latch Re.