BD8676KN

1/4 STRUCTURE PRODUCT NAME MODEL NAME B LOCK DIAGRAM ◎ FEATURES： ： ： ： ： Silicon Monolithic Integrated Circuit D C/DC converter IC for camera module for car navigation system BD8676KN F ig. - 2 ・ +3.3V output synchronous step down DC/DC converter ・ +1.2V output synchronous step down DC/DC converter ・ +15V output boost DC/DC converter and LDO regulator ・ -5.5V output Voltage control charge pump (negative voltage) ・Soft start function ・Reset function ・Building in low voltage and over voltage protection function ・Building in terminal RT OPEN/SHORT protection ・The frequency can be set by external resistance ・Protection control with built-in sequencer ・VQFN-36 package (6.2mm□ Package) ◎ ABSOLUTE MAXIMUM RATING: （ Ta = 25 ℃） Parameter VIN supply voltage PVIN supply voltage V33IN Input terminal voltage V16 terminal voltage CP terminal voltage MV66 terminal voltage Terminal voltage 1*2*3 Terminal voltage 2*4 Terminal voltage 3*5 Terminal voltage 4*6 Terminal voltage 5*7 Power dissipation Operating temperature Storage temperature Symbol VIN PVIN V33IN V16 CP MV66 VINOUT1 VINOUT2 VOUT3 VOUT4 VOUT5 Pd Topr Tstg -0.3 -0.3 -0.3 -0.3 V33IN-0.3 -10.0 -0.3 -0.3 -0.3 -0.3 MV66-0.3 -40 -55 Limits ～ ～ ～ ～ ～ ～ ～ ～ ～ ～ ～ 0.875*1 ～ ～ +18.0 VIN+0.3 5.0 +20.0 +10.0 +0.3 VIN+0.3 V33IN+0.3 V16+0.3 CP +0.3 +85 +150 Unit V V V V V V V V V V V W ℃ ℃ *1 70mm×70mm, thickness1.6mm, less than 3% share of copper foil when implementing glass epoxy board. Operating at higher than Ta=25℃, 7.0mW shall be reduced per 1 *2 Input terminal voltage:CTL1(32pin), CTL2(33pin), CTL3(34pin), CTL4(35pin), TEST1(9pin), TEST2(10pin), V33(6pin),V12(14pin) *3 Output terminal voltage: RT(1pin),RSTO(3pin),RSTDLY(4pin),SS33(5pin),SS12(13pin),SS16(25pin),FC33(7pin), FC12(15pin),FC16(28pin),TEST3(31pin),SW33(11pin),V33(6pin) *4 SW12(17pin) terminal voltage *5 SW16(30pin), V15(26pin) terminal voltage *6 CM(20pin) terminal voltage *7 CR(22pin), MV5(24pin) terminal voltage ◎ OPERATION CONDITION (Please set the power-supply voltage in consideration of a power dissipation.) MIN 4.5 4.5 2.7 TYP 6.0 6.0 3.3 MAX 9.0 9.0 3.6 Unit V V V Parameter Symbol VIN supply voltage VIN PVIN supply voltage PVIN V33IN terminal voltage V33IN This product is not designed for protection against radioactive rays. REV. A 2/4 ◎ ELECTRICAL CHARACTERISTICS ( Unless otherwise noted Ta=25 ℃ , VIN=6.0V,PVIN=6.0V,CTL1,2,3,4=6.0V,GND=0V) specification value Parameter Symbol MIN TYP MAX VIN,PVIN Circuit current 1 VIN,PVIN Circuit current 2 Range of DC/DC converter oscillation frequency setting < 3.3V output Step-down DC/DC converter > 3.3V output voltage V33 Terminal Discharge resistance SS33 Terminal Charging current SS33 Terminal Threshold voltage SS33 Terminal Standby voltage SS33 Terminal Protection circuit start voltage V33 Terminal Low voltage detection voltage V33 Terminal Over voltage detection voltage < 1.2V output Step-down DC/DC converter > 1.2V output voltage V12 Terminal Discharge resistance SS12 Terminal Charging current SS12 Terminal Threshold voltage SS12 Terminal Standby voltage SS12 Terminal Protection circuit start voltage V12 Terminal Low voltage detection voltage V12 Terminal Overvoltage detection voltage < 16.5V output Boost DC/DC converter > V16 output voltage SS16 Terminal Charging current SS16 Terminal Threshold voltage SS16 Terminal Standby voltage SS16 Terminal Protection circuit start voltage < 15V output LDO > V15 output voltage V15 Terminal Discharge resistance V15 Terminal Overvoltage detection voltage V15 Terminal Low voltage detection voltage < -5.5V output reversing charge pump > MV5 output voltage MV5 Terminal Discharge resistance MV5 Terminal Overvoltage detection voltage MV5 Terminal Protection circuit start voltage MV5 Terminal Low voltage detection voltage < Reset > Reset voltage Reset release voltage RSTDLY Terminal detection voltage RSTO Terminal Low output voltage < Other > CTL Terminal input voltage H level voltage CTL Terminal input voltage L level voltage VIHCTL VILCTL 2.5 VIN 0.5 V V CTL1,2,3,4 CTL1,2,3,4 VRST1 VRST2 VRSTDLY VRSTOL 2.673 2.850 0.800 2.700 3.000 0.900 2.727 3.150 1.000 0.5 V V V V VV33 (H→L) VV33 (L→H) VRSTDLY (L→H)、VV33=3.3V IRSTO =4mA VMV5 RMV5DIS VMV5OVP VMV5PON VMV5LVP -5.61 330 -8.25 -4.5 -2.5 -5.50 470 -7.50 -3.5 -2.0 -5.39 610 -6.75 -2.5 -1.5 V Ω V V V CTL1,2,4=VIN CTL4=0V VMV5 voltage、VV33=3.3V VMV5 voltage (H→L)、VV33=3.3V VMV5 voltage (L→H)、VV33=3.3V V015 RV15DIS VV15OVP VV15LVP 14.70 270 16.20 5.4 15.00 390 18.00 6.0 15.30 500 19.80 6.6 V Ω V V CTL1,3=VIN V016 ISS16 VSS16TH VSS16STB VSS16PON 15.65 -4.0 1.0 0.11 1.0 16.50 -2.5 1.1 0.15 1.1 17.35 -1.0 1.2 0.19 1.2 V μA V V V CTL1,2,3=VIN VSS16=1.0V VSS16voltage、VV15=15.0V VSS33 voltage (L→H) VSS16 voltage (L→H) V012 RV12DIS ISS12 VSS12TH VSS12STB VSS12PON VV12LVP VV12OVP 1.176 270 -4.0 1.0 0.11 1.0 0.40 1.62 1.200 390 -2.5 1.1 0.15 1.1 0.48 1.8 1.224 500 -0.1 1.2 0.19 1.2 0.56 0.98 V Ω μA V V V V V VSS12=1.0V VSS12voltage、VV12=1.2V VSS12 voltage (L→H) VSS12 voltage (L→H) VV12 voltage (H→L) VV12 voltage CTL1,2=VIN V033 RV33DIS ISS33 VSS33TH VSS33STB VSS33PON VV33LVP VV33OVP 3.234 270 -4.0 1.0 0.11 1.0 1.11 4.45 3.300 390 -2.5 1.1 0.15 1.1 1.32 4.95 3.366 500 -1.0 1.2 0.19 1.2 1.53 5.45 V Ω μA V V V V V VSS33=1.0V VSS33voltage、VV33=3.3V VSS33 voltage (L→H) VSS33 voltage (L→H) VV33 voltage (H→L) VV33 voltage CTL1=VIN IQ1 IQ2 FOSC 500 0 1000 50 20 1200 UNIT μA mA kHz Condition CTL1,2,3,4=0V CTL1,2,3,4=VIN、 V33=3.5V V16=17.0V 、V12=1.4V possible to setup at RT terminal. CTL Terminal input current VIFNL 20 35 μA CTL1,2,3,4=VIN ●VV33 ： V33 voltage、VVSS33 ： SS33 voltage、VV12： V12 voltage、VSS12 ： SS12 voltage、VSS16 ： SS16 voltage、 VV15IN：V15 voltage、VMV5 ： MV5 voltage、VRSTDLY ： RSTDLY voltage、IRSTO ： RSTO input current ●This product is not designed for protection against radioactive rays. ●The current ability must not exceed Pd. REV. A 3/4 ◎ PIN ASSIGNMENT No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Symbol RT GND RSTO RSTDLY SS33 V33 FC33 PVIN TEST1 TEST2 SW33 PGND33 SS12 V12 FC12 PGND12 SW12 V33IN Description Frequency adjustment resistance connection terminal GND(0V connection) Reset output Reset release delay element connection terminal Soft start adjustment capacity connection terminal for 3.3VDC/DC Feedback terminal for 3.3VDC/DC Error amplifier output terminal for 3.3VDC/DC Power supply input terminal for 3.3VDC/DC Test terminal 1(0V connection). Test terminal 2(0V connection). Coil connection terminal for 3.3VDC/DC Power GND for 3.3VDC/DC (0V connection) Soft start adjustment capacity connection terminal for 1.2VDC/DC Feedback terminal for 1.2VDC/DC Error amplifier output terminal for 1.2VDC/DC Power GND for 1.2VDC/DC (0V connection) Coil connection terminal for 1.2VDC/DC Power supply input terminal for 1.2VDC/DC No. 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 Symbol CP CM PGNDCP CR MV66 MV5 SS16 V15 V16 FC16 PGND16 SW16 TEST3 CTL1 CTL2 CTL3 CTL4 VIN 3.3V and 6.6V switch 0V and 6.6V switch Power GND for Charge pump (0V connection) 0V and -6.6V switch -6.6V charge pump output -5.5V LDO output capacity connection terminal Soft start adjustment capacity connection terminal for 16VDC/DC 15.0V LDO output Feedback terminal for 16VDC/DC Error amplifier output terminal for 16VDC/DC Power GND for 16VDC/DC (0V connection) Coil connection terminal for 16VDC/DC Test terminal 3 (open) 3.3VDC/DC control terminal 1.2VDC/DC control terminal 15.0V LDO control terminal -5.5V LDO control terminal Power supply input terminal Description ◎ PACKAGE OUTLINE ◎ BLOCK DIAGRAM Product number BD8676 1pin mark Lot No. package: VQFN36(Unit：mm) Fig.-１ PACKAGE OUTLINE F ig.-2.BLOCK DIAGRAM REV. A 4/4 ◎ NOTE ON USE 1．About the absolute maximum rating Attention is brushed off enough to the quality control, it is likely to destroy when the absolute maximum rating such as impressed voltages (VCC_IN,DCIN) and ranges (Topr) of the operating temperature as it is exceeded, the mode of breakings of the short or the opening, etc. cannot be specified, and examine it in this IC to give physical measures for safety such as fuses when a special mode that exceeds the absolute maximum rating is assumed. 2．About the reverse-connection of the power supply connector IC might destroy it by reversely connecting the power supply connector. Give measures such as putting the diode between power supply terminals of power supply and IC outside for the reverse-touching destruction protection. 3．Power supply line Please do measures such as putting the bypass capacitor in power supply-GND nearest pin of this IC as the route of the resurrection current to cause the return of the current in which it resurrected it by the counter electromotive force of the coil. Please confirm the characteristic of the electrolytic capacitor enough as the capacity omission etc. at the low temperature never happen, and decide it. 4．About grand potential Any state of operation must become the lowest potential about the potential of the terminal GND. Moreover, confirm whether there is terminal that is actually the voltage of GND or less including transients. [Negative power supply terminal CR(22pin) MV66(23pin) MV5(24pin) is excluded.] 5．About the heat design Think about permissible loss (Pd) in an actual state of use, and do the heat design with the margin enough. 6．About the short and the miss-installation between terminals Note the direction and the miss-registration of IC enough when you install it in the set substrate. IC might destroy it as well as reversely connecting the power supply connector when installing it by mistake. Moreover, there is fear of destruction when the foreign body enters between terminals, the terminal, the power supply, and grandeur and it is short-circuited. 7．About operation in strong electromagnetic field In use in strong electromagnetic field, note that there is a possibility of malfunctioning. 8．About the capacitor during output-GND The current charged the capacitor with when VCC is 0V or is GND and is short-circuited when a big capacitor is connected between GND output by some factors flows into the output and it is likely to destroy it. Give the capacitor between GND output to 0.1μF or less. 9．About the inspection by the set substrate It is likely to suffer stress to IC and discharge electricity every one process when you connect the capacitor with the pin with low impedance when inspecting it in the set substrate. Moreover, detach it after connecting after the power supply is turned off without fail when detaching it to G in the inspection process, inspecting, and turning off the power supply. n addition, be give the earth to the assembly process as a static electricity measures, and careful enough when it transports and you preserve it. 10．About each input terminal This IC is a monolithic IC which has a P+ isolations and P substrate to isolate elements each other. This P layer and an N layer in each element form a PN junction to construct various parasitic elements. For instance, the potential difference operates in resistance as shown in the figure below when resistance and the transistor connect it with the terminal and the playground (GND) >(terminal B) joint of PN operates as a parasitic diode in playground (GND) >(terminal A) transistor (NPN). In addition, the NPN transistor of parasitism works with N layer of the element of the above-mentioned parasitic diode and the neighborhood and others in transistor (NPN). A parasitic element in IC composition is inevitably formed because of the potential relation. A parasitic element can operate, the interference with the circuit operation be caused, it malfunction, and, consequently, it cause destruction. Therefore, do not do the usage that a parasitic element operates as a voltage that is lower than the playground (GND;P substrate) is impressed to the input terminal enough. Moreover, do not impress the voltage to the input terminal when you do not impress the power-supply voltage to IC. Give each input terminal to me the voltage below the power-supply voltage or in the guarantee value of an electric characteristic when you similarly impress the power-supply voltage. Example of IC of simple structure 11．Earth wiring pattern If small signal GND and large current GND exist, disperse their pattern. In addition, for voltage change by pattern wiring impedance and large current not to change voltage of small signal GND, each ground terminal of IC must be connected at the one point on the set circuit board. As for GND of external parts, it is similar to the above-mentioned. 12．Thermal Shut-Down When a thermal shutdown operates, the DC/DC converter controller of all Ch is turned off. When a thermal shutdown is released, the DC/DC converter controller of all Ch becomes an operation beginning from turning off. REV. A 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"). 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