1/4 STRUCTURE Silicon Monolithic Integrated Circuit NAME OF PRODUCT DC-AC Inverter Control IC TYPE ＢＤ９８８３ＡＦ, ＢＤ９８８３ＦＶ FUNCTION ・36V High voltage process ・1ch control with Half-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 ○Absolute Maximum Ratings（Ta = 25℃） Parameter Supply Voltage BST BST-ST Voltage Difference Operating Temperature Range Storage Temperature Range Power Dissipation Maximum Junction Temperature Symbol VCC BST BST-SW Topr Tstg Pd Tjmax Limits 30 40 15 -40～+85 -55～+150 550*1(BD9883AF) 650*2(BD9883FV) +150 Unit V V V ℃ ℃ mW ℃ *1 Pd derated at 4.4mW/℃ for temperature above Ta = 25℃ (When mounted on a PCB 70.0mm×70.0mm×1.6mm) *2 Pd derated at 5.2mW/℃ for temperature above Ta = 25℃ (When mounted on a PCB 70.0mm×70.0mm×1.6mm) 〇Recommended operating condition Parameter Supply voltage CT oscillation frequency BST voltage BST-SW voltage difference BCT oscillation frequency Symbol Vcc fCT BST Limits 6.0～22.0 20～150 4.0～34.0 Unit V kHz V BST-SW fBCT 4.0～12.0 0.10～0.50 V kHz REV. E 2/4 ○Electric Characteristics（Ta=25℃，VCC=12V） Limits Parameter Symbol Unit MIN. TYP. MAX. Conditions （（WHOLE DEVICE） ） Operating current Icc1 － 9.0 17.0 mA Stand-by current Icc2 － 5.0 10.0 μA Stand-by voltage H VstH 1.7 － VCC V System ＯＮ Stand-by voltage L VstL -0.3 － 0.7 V System ＯＦＦ Stand-by hysteresis ⊿Vst 0.05 0.20 0.35 V Operating voltage VuvloH 5.15 5.40 5.65 V Shut down voltage VuvloL 4.90 5.15 5.40 V REG output voltage VREG 5.30 5.50 5.70 V REG source current IREG 20.0 － － mA Iact 1.35/RT 1.5/RT 1.65/RT A Negative edge current Ineg Iact×10 Iact×13 Iact×16 A OSC Max voltage VoscH 1.8 2.0 2.2 V fCT=50kHz, fCT=120kHz OSC Min voltage① VoscL1 0.2 0.4 0.6 V fCT=50kHz OSC Min voltage② VoscL2 0.05 0.15 0.25 V fCT=120kHz Soft start current Iss 0.50 1.00 1.50 μA SRT ON resistance RSRT － 150 300 Ω BOSC Max voltage VBCTH 1.920 2.000 2.080 V fBCT=0.3kHz BOSC Min Voltage VBCTL 0.400 0.500 0.600 V fBCT=0.3kHz BOSC constant current IBCT 1.35/BRT 1.5/BRT 1.65/BRT A VBCT=0.2V Timer Latch voltage Vscp 1.8 2.0 2.2 V Timer Latch current Iscp 0.25 0.50 0.75 μA IS threshold voltage Vis 1.220 1.250 1.280 V VS threshold voltage Vvs 1.220 1.250 1.280 V IS source current 1 Iis1 － － 0.9 μA DUTY=2.0V IS source current 2 Iis2 12.0 20.0 28.0 μA DUTY=0V、IS=0.5V VS source current Ivs － － 0.9 μA FB over voltage detect voltage Vovf 2.2 2.5 2.8 V IS COMP detect Voltage Visc 0.3 0.4 0.5 V LN output sink current RsinkLN － 15 30 Ω LN output source current RsourceLN － 30 60 Ω HN output sink current RsinkHN － 15 30 Ω VBST-VSW=5.0V HN output source current RsourceHN － 30 60 Ω VBST-VSW=5.0V fCT=100kHz （（STAND BY CONTROL）） （（UVLO BLOCK）） （（REG BLOCK）） Vcc＞6.0V （（OSC BLOCK）） Active edge current （（BOSC BLOCK）） （（TIMER LATCH）） （（FEED BACK BLOCK）） （（OUTPUT BLOCK） ） （This product is not designed for normal operation with in a radio active environment.） REV. E 3/4 〇Package Dimensions (Include BURR 12.85) Device Mark Device Mark BD9883 BD9883AF １ Lot No. １ Lot No. SSOP-B20 (Unit:mm) SOP20 (Unit:mm) 〇Block Diagram 〇Pin Description SS CT RT BRT BCT DUTY VCC Pin No. 1 + OSC STB STB BLOCK 3 VCC REG BLOCK PWM BLOCK LOGIC BLOCK + VCC F/B BLOCK VS 2 - SYSTEM ON/OFF FB IS BOSC - - UVLO LN OUTPUT BLOCK + + HN OUTPUT BLOCK REG HN 5 SW LN 6 PROTECT BLOCK Control PWM mode and BURST mode External capacitor from BCT to GND for adjusting the BURST triangle oscillator External resistor from BRT to GND for adjusting the BURST triangle oscillator External capacitor from CT to GND for adjusting the triangle oscillator External resistor from RT to GND for adjusting the triangle oscillator External resistor from SRT to RT for adjusting the triangle oscillator GROUND BCT BRT CT RT SRT 7 GND 8 FB Error amplifier output 9 IS Error amplifier input① 10 VS Error amplifier input② 11 STB Stand-by switch External capacitor from SCP to GND for Timer Latch External capacitor from SS to GND for Soft Start Control Ground for FET drivers 12 GND 13 SCP Function DUTY PGND VS IS 4 BST Pin Name SRT REV. E SCP SS 14 PGND 15 LN NMOS FET driver 16 HN NMOS FET driver 17 SW Low voltage for HN output 18 BST Boot-Strap input for HN output 19 REG Internal regulator output 20 VCC Supply voltage input 4/4 〇NOTE FOR USE １． When designing the external circuit, including adequate margins for variation between external devices and the IC.Use adequate margins for steady state and transient characteristics. ２． Recommended Operating Range The circuit functionality is guaranteed within of ambient temperature operation range as long as it is within recommended operating range. The standard electrical characteristic values cannot be guaranteed at other voltages in the operating ranges, however, the variation will be small. ３． Mounting Failures Mounting failures, such as misdirection or miscounts, may harm the device. ４． Electromagnetic Fields A strong electromagnetic field may cause the IC to malfunction. ５. The GND pin should be the location within ±0.3V compared with the PGND pin ６． BD9883AF, BD9883FV has the short circuit protection with Thermal Shut Down System. When STB or Vcc pin re-supplied, They enables to cancel the latch. If It rise the temperature of the chip more than 170℃(TYP), It make the external FET OFF ７． Absolute maximum ratings are those values that, if exceeded, may cause the life of a device to become significantly shortened. Moreover, the exact failure mode caused by short or open is not defined. Physical countermeasures, such as a fuse, need to be considered when using a device beyond its maximum ratings. ８． About the external FET, the parasitic Capacitor may cause the gate voltage to change, when the drain voltage is switching. Make sure to leave adequate margin for this IC variation. ９． On operating Slow Start Control (SS is less than 2.2V), It does not operate Timer Latch. １０． By STB voltage, BD9883AF,BD9883FV is changed to 2 states. Therefore, do not input STB pin voltage between one state and the other state (0.7～1.7V). １１．The pin connected a connector need to connect to the resistor for electrical surge destruction. １２．This IC is a monolithic IC which (as shown is Fig-1)has P+ substrate and between the various pins. A P-N junction is formed from this P layer of each pin. For example, the relation between each potential is as follows, ○(When GND > PinB and GND > PinA, the P-N junction operates as a parasitic diode.) ○(When PinB > GND > PinA, the P-N junction operates as a parasitic transistor.) Parasitic diodes can occur inevitably in the structure of the IC. The operation of parasitic diodes can result in mutual interference among circuits as well as operation faults and physical damage. Accordingly you must not use methods by which parasitic diodes operate, such as applying a voltage that is lower than the GND(P substrate)voltage to an input Transistor (NPN) B E C Resistance pin. (PinA) (PinB) Ｃ GND P P＋ N P＋ N Ｎ N Ｎ P substrate GND Parasitic diode N P substrate GND Parasitic diode (PinB) (PinA) B CＣ Ｂ EＥ Parasitic diode GND GND Other adjacent components Parasitic diode 図-1 Simplified structure of a Bipolar IC REV. E Notice Notes No copying or reproduction of this document, in part or in whole, is permitted without the consent of ROHM Co.,Ltd. The content specified herein is subject to change for improvement without notice. The content specified herein is for the purpose of introducing ROHM's products (hereinafter "Products"). If you wish to use any such Product, please be sure to refer to the specifications, which can be obtained from ROHM upon request. Examples of application circuits, circuit constants and any other information contained herein illustrate the standard usage and operations of the Products. The peripheral conditions must be taken into account when designing circuits for mass production. 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