Datasheet General Purpose CMOS Logic IC 8ch Analog Multiplexer/Demultiplexer BU4051BC BU4051BCF BU4051BCFV General Description Key Specifications The BU4051BC, BU4051BCF, BU4051BCFV are multiplexers/demultiplexers with capabilities of selection and mixture of analog signal and digital signal. This series are configured with 8channels input/output.The digital signal of the control terminal turns on the corresponding switch of each channel. The large amplitude voltage (VDD-VEE) can be switched by the control signal with small logical amplitude voltage (VDD-VSS). Operating Supply Voltage Range: 3V to 18V Input Voltage Range(Control): VSS to VDD Input/Output Voltage Range(switch): VEE to VDD Operating Temperature Range: -40°C to +85°C Packages DIP16 SOP16 SSOP-B16 W(Typ) x D(Typ) x H(Max) 19.40mm x 6.50mm x 7.95mm 10.00mm x 6.20mm x 1.71mm 5.00mm x 6.40mm x 1.35mm Features Low Power Consumption Wide Operating Supply Voltage High Input Impedance DIP16 SOP16 SSOP-B16 Truth Table CONTROL ON SWITCH INHIBIT A B C L L L L X0 L H L L X1 L L H L X2 L H H L X3 L L L H X4 L H L H X5 L L H H X6 L H H H X7 H Don’t Care Don’t Care Don’t Care NONE 〇Product structure : Silicon monolithic integrated circuit .www.rohm.com © 2015 ROHM Co., Ltd. All rights reserved. TSZ22111 • 14 • 001 〇This product has no designed protection against radioactive rays 1/17 TSZ02201-0RDR0GZ00280-1-2 06.Jan.2015 Rev.001 BU4051BC BU4051BCF BU4051BCFV Pin Configuration (TOP VIEW) X4 1 16 VDD X6 2 15 X2 X 3 14 X1 X7 4 13 X0 X5 5 12 X3 INHIBIT 6 11 A VEE 7 10 B VSS 8 9 C Pin Description Pin No. Pin Name I/O 1 X4 I/O Analog Switch Input / Output 2 X6 I/O Analog Switch Input / Output 3 X I/O Analog Switch Input / Output 4 X7 I/O Analog Switch Input / Output 5 X5 I/O Analog Switch Input / Output 6 INHIBIT I 7 VEE ― Power Supply(-) 8 VSS ― Power Supply(-) 9 C I Control Input 10 B I Control Input 11 A I Control Input 12 X3 I/O Analog Switch Input / Output 13 X0 I/O Analog Switch Input / Output 14 X1 I/O Analog Switch Input / Output 15 X2 I/O Analog Switch Input / Output 16 VDD ― Power Supply (+) www.rohm.com © 2015 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 Function Control Input 2/17 TSZ02201-0RDR0GZ00280-1-2 06.Jan.2015 Rev.001 BU4051BC BU4051BCF BU4051BCFV Block Diagram VDD INHIBIT A B C VSS VEE LEVEL CONVERTER BINARY TO 1 OF 8 DECODER WITH INHIBIT X0 X1 X2 X3 COMMON X X4 X5 X6 X7 Absolute Maximum Ratings (TA=25°C) Parameter Supply Voltage Symbol Rating Unit VDD -0.5 to +20.0 V (Note 1) Control Input Voltage VCIN (VSS-0.5) ~ (VDD+0.5) V VIN / VOUT (VEE-0.5) ~ (VDD+0.5) V Control Input Current ICIN ±10 mA Operating Temperature Topr -40 to +85 °C Storage Temperature Tstg -55 to +150 °C +150 °C Analog Switch Input/Output Voltage Maximum Junction Temperature Power Dissipation TJmax PD DIP16 1.25 (Note 2) SOP16 0.62 (Note 3) 0.87 (Note 4) SSOP-B16 W (Note 1) It Contain voltage of VSS to VDD and Voltage of VEE to VDD. It shoud be VEE ≤ VSS (Note 2) Mounted on 70mm x 70mm x 1.6mm glass epoxy board. Reduce 10.0mW per 1°C above 25°C (Note 3) Mounted on 70mm x 70mm x 1.6mm glass epoxy board. Reduce 5.0mW per 1°C above 25°C (Note 4) Mounted on 70mm x 70mm x 1.6mm glass epoxy board. Reduce 7.0mW per 1°C above 25°C Caution: Operating the IC over the absolute maximum ratings may damage the IC. The damage can either be a short circuit between pins or an open circuit between pins and the internal circuitry. Therefore, it is important to consider circuit protection measures, such as adding a fuse, in case the IC is operated over the absolute maximum ratings. Recommended Operating Conditions (TA= -40°C to +85°C) Parameter Symbol Min Typ Max Unit Supply Voltage VDD 3.0 - 18 V Control Input Voltage VCIN VSS - VDD V VIN / VOUT VEE - VDD V Analog Switch Input/Output Voltage www.rohm.com © 2015 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 3/17 TSZ02201-0RDR0GZ00280-1-2 06.Jan.2015 Rev.001 BU4051BC BU4051BCF BU4051BCFV Electrical Characteristics (Unless otherwise specified VSS=0V, VEE=0V, TA=25°C) Parameter Symbol Min Typ Max 3.5 - - 7.0 - - 11.0 - - - - 1.5 - - 3.0 Unit Conditions DC Characteristics Input “H” Voltage VIH VDD=5V V VDD=10V - VDD=15V VDD=5V Input “L” Voltage VIL - - 4.0 Input “H” Current IIH - - 0.3 µA VDD=15V VIH=15V Input “L” Current IIL - - -0.3 µA VDD=15V VIL=0V RON - - 250 - - - 10 160 - - 6 - - 4 - 0.3 - - -0.3 - - 5 - - 10 - - 15 VDD=15V - 15 45 VDD=5V - 8 20 - 6 15 - 170 550 - 90 240 - 70 160 VDD=15V - 150 450 VDD=5V - 70 210 ON Resistance ON Resistance Defluxion △RON Channel-OFF Leakage Current Quiescent Supply Current IOFF IDD V VDD=10V - VDD=15V 950 VDD=5V Ω VDD=10V - VDD=15V VDD=5V Ω VDD=10V - VDD=15V µA VDD=15V COMMON=0V VDD=15V COMMON=VDD VDD=5V µA VDD=10V VIN=VDD or VEE Switching Characteristics, CL=50pF Propagation Delay Time IN→OUT tPLH tPHL Propagation Delay Time CONTROL (A,B,C)→OUT tPHZ,tPLZ tPZH,tPZL Propagation Delay Time CONTROL (INHIBIT)→OUT tPHZ,tPLZ tPZH,tPZL Maximum Propagation Frequency Feed Through Attenuation ns VDD=10V - VDD=15V VDD=5V ns ns VDD=10V VDD=10V - - - 50 160 fMAX - 20 - MHz VDD=5V VEE=-5V FT - 0.5 - MHz VDD=5V VEE=-5V VDD=5V VEE=-5V VDD=15V Sine Wave Distortion D - 0.02 - % Input Capacitance (control input) CC - 5 - pF - - Input Capacitance (switch input) CS - 10 - pF - - www.rohm.com © 2015 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 4/17 TSZ02201-0RDR0GZ00280-1-2 06.Jan.2015 Rev.001 BU4051BC BU4051BCF BU4051BCFV Waveforms of Switching Characteristics VDD CONTROL X1 to X7 (INPUT) 50% VDD A VEE B OUT C 50% X (OUTPUT) INHIBIT X1 to X7 VEE, VSS IN tPHL tPLH Figure 1. Propagation Delay Time IN→OUT(tPLH,tPHL) Wave form CL RL Figure 2. Propagation Delay Time IN→OUT(tPLH,tPHL) Test Circuit VDD CONTROL 50% CONTROL (INPUT) X VDD A VSS B OUT C X 90% X (OUTPUT) 50% INHIBIT VDD tPHZ tPZH Figure 3. Propagation Delay Time CONTROL (A,B,C,INHIBIT)→OUT (tPLH,tPHL) Wave form CL Figure 4. Propagation Delay Time CONTROL (A,B,C,INHIBIT)→OUT (tPLH,tPHL) Test Circuit VDD CONTROL (INPUT) RL X1 to X7 VEE, VSS CONTROL 50% VDD A VSS RL CL B C 50% X (OUTPUT) X OUT INHIBIT 10% tPZL X1 to X7 VEE, VSS tPLZ Figure 6. Propagation Delay Time CONTROL (A,B,C,INHIBIT)→OUT (tPZL,tPLZ) Test Circuit Figure 5. Propagation Delay Time CONTROL (A,B,C,INHIBIT)→OUT (tPZL,tPLZ) www.rohm.com © 2015 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 5/17 TSZ02201-0RDR0GZ00280-1-2 06.Jan.2015 Rev.001 BU4051BC BU4051BCF BU4051BCFV 1400 1400 1200 1200 1000 1000 ON Resistance [Ω] ON Resistance [Ω] Typical Performance Curves 800 600 400 85°C 25°C -40°C 200 85°C 600 25°C -40°C 400 200 0 0 0 1 2 3 4 5 0 1 2 3 4 5 Input Voltage [V] Input Voltage [V] Figure 7. ON Resistance vs Input Voltage VDD=3V Figure 8. ON Resistance vs Input Voltage VDD=5V 1400 1400 1200 1200 1000 1000 ON Resistance [Ω] ON Resistance [Ω] 800 800 600 400 85°C 25°C -40°C 200 800 600 400 85°C 25°C -40°C 200 0 0 0 2 4 6 8 10 0 Input Voltage [V] 6 9 Input Voltage [V] 12 15 Figure 10. ON Resistance vs Input Voltage VDD=15V Figure 9. ON Resistance vs Input Voltage VDD=10V www.rohm.com © 2015 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 3 6/17 TSZ02201-0RDR0GZ00280-1-2 06.Jan.2015 Rev.001 BU4051BC BU4051BCF BU4051BCFV Typical Performance Curves - continued 50 50 Operating Temperature Range 40 Propagation Delay Time [ns] Propagation Delay Time [ns] Operating Temperature Range 30 VDD=3V VDD=5V 20 VDD=10V VDD=18V 10 0 40 30 VDD=3V 20 VDD=5V VDD=10V VDD=18V 10 0 -50 -25 0 25 50 75 Ambient Temperature [°C] 100 -50 Figure 11. Propagation Delay Time IN→OUT(tPLH) vs Ambient Temperature 500 -25 0 25 50 75 Ambient Temperature [°C] 100 Figure 12. Propagation Delay Time IN→OUT(tPHL) vs Ambient Temperature 500 Operating Temperature Range Propagation Delay Time [ns] Propagation Delay Time [ns] VDD=3V 400 VDD=3V 300 200 VDD=5V 100 400 300 VDD=5V VDD=10V 200 VDD=18V 100 VDD=10V VDD=18V Operating Temperature Range 0 0 -50 -25 0 25 50 75 Ambient Temperature [°C] -50 100 Figure 13. Propagation Delay Time CONTROL (A,B,C)→OUT (tPZH)vs Ambient Temperature www.rohm.com © 2014 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 -25 0 25 50 75 Ambient Temperature [°C] 100 Figure 14. Propagation Delay Time CONTROL (A,B,C)→OUT (tPHZ)vs Ambient Temperature 7/17 TSZ02201-0RDR0GZ00280-1-2 06.Jan.2015 Rev.001 BU4051BC BU4051BCF BU4051BCFV Typical Performance Curves - continued 500 500 400 Propagation Delay Time [ns] Propagation Delay Time [ns] Operating Temperature Range VDD=3V 300 VDD=5V 200 VDD=10V VDD=18V 100 400 VDD=3V 300 200 VDD=5V 100 VDD=10V VDD=18V Operating Temperature Range 0 0 -50 -25 0 25 50 75 Ambient Temperature [°C] 100 -50 Figure 15. Propagation Delay Time CONTROL (A,B,C)→OUT(tPLZ) vs Ambient Temperature 500 -25 0 25 50 75 Ambient Temperature [°C] 100 Figure 16. Propagation Delay Time CONTROL (A,B,C)→OUT(tPZL) vs Ambient Temperature 500 Operating Temperature Range Operating Temperature Range 400 Propagation Delay Time [ns] Propagation Delay Time [ns] VDD=3V VDD=3V 300 200 VDD=5V 100 VDD=10V 400 300 VDD=5V VDD=10V 200 VDD=18V 100 VDD=18V 0 0 -50 -25 0 25 50 75 Ambient Temperature [°C] -50 100 Figure 17. Propagation Delay Time CONTROL (INHIBIT)→OUT (tPZH)vs Ambient Temperature www.rohm.com © 2014 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 8/17 -25 0 25 50 75 Ambient Temperature [°C] 100 Figure 18. Propagation Delay Time CONTROL (INHIBIT)→OUT (tPHZ)vs Ambient Temperature TSZ02201-0RDR0GZ00280-1-2 06.Jan.2015 Rev.001 BU4051BC BU4051BCF BU4051BCFV Typical Performance Curves - continued 500 Operating Temperature Range 400 Propagation Delay Time [ns] Propagation Delay Time [ns] 500 VDD=3V 300 VDD=5V 200 VDD=10V VDD=18V 100 Operating Temperature Range 400 300 VDD=3V 200 VDD=5V 100 VDD=10V VDD=18V 0 0 -50 -25 0 25 50 75 Ambient Temperature [°C] -50 100 Figure 19. Propagation Delay Time CONTROL (INHIBIT)→OUT(tPZL) vs Ambient Temperature www.rohm.com © 2015 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 9/17 -25 0 25 50 75 Ambient Temperature [°C] 100 Figure 20. Propagation Delay Time CONTROL (INHIBIT)→OUT(tPLZ) vs Ambient Temperature TSZ02201-0RDR0GZ00280-1-2 06.Jan.2015 Rev.001 BU4051BC BU4051BCF BU4051BCFV Power Dissipation Power dissipation (total loss) indicates the power that can be consumed by IC at T A=25°C(normal temperature). IC is heated when it consumed power, and the temperature of IC chip becomes higher than ambient temperature. The temperature that can be accepted by IC chip depends on circuit configuration, manufacturing process, and consumable power is limited. Power dissipation is determined by the temperature allowed in IC chip(maximum junction temperature) and thermal resistance of package(heat dissipation capability). The maximum junction temperature is typically equal to the maximum value in the storage temperature range. Heat generated by consumed power of IC radiates from the mold resin or lead frame of the package. The parameter which indicates this heat dissipation capability(hardness of heat release)is called thermal resistance, represented by the symbol θ JA (°C/W).The temperature of IC inside the package can be estimated by this thermal resistance. Figure 21 shows the model of thermal resistance of the package. Thermal resistance θJA, ambient temperature TA, maximum junction temperature TJmax, and power dissipation PD can be calculated by the equation below: θJA = (TJmax - TA) / PD (°C/W) Derating curve in Figure 22 indicates power that can be consumed by IC with reference to ambient temperature. Power that can be consumed by IC begins to attenuate at certain ambient temperature. This gradient is determined by thermal resistance θJA. Thermal resistance θJA depends on chip size, power consumption, package, ambient temperature, package condition, wind velocity, etc even when the same of package is used. Thermal reduction curve indicates a reference value measured at a specified condition. 1.6 1.4 BU4051BC (DIP16) θJA =( TJmax - TA)/ PD Power Dissipation [W] 1.2 (°C/W) 周囲温度 Ta [℃] TA (℃) Ambient temperature 1.0 BU4051BCFV 0.8 0.6 0.4 BU4051BCF (SOP16) 0.2 0.0 Chip surface temperature TJ(℃) チップ 表面温度 Tj [℃] 0 消費電力 P [W] (SSOP-B16) 25 50 75 85 100 125 150 Ambient Temperature [℃] Figure 21. Thermal Resistance Figure 22. Derating Curve I/O Equivalent Circuits Pin No. Control Input Terminals 6,9,10,11 VDD VDD Input / Output Terminals 1,2,3,4,5,12,13,14,15 VDD VDD VDD VDD Equivalence Circuit GND VSS www.rohm.com © 2015 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 GND GND VSS VEE 10/17 TSZ02201-0RDR0GZ00280-1-2 06.Jan.2015 Rev.001 BU4051BC BU4051BCF BU4051BCFV Operational Notes 1. Reverse Connection of Power Supply Connecting the power supply in reverse polarity can damage the IC. Take precautions against reverse polarity when connecting the power supply, such as mounting an external diode between the power supply and the IC’s power supply pins. 2. Power Supply Lines Design the PCB layout pattern to provide low impedance supply lines. Separate the ground and supply lines of the digital and analog blocks to prevent noise in the ground and supply lines of the digital block from affecting the analog block. Furthermore, connect a capacitor to ground at all power supply pins. Consider the effect of temperature and aging on the capacitance value when using electrolytic capacitors. 3. VDD Voltage Ensure that no pins are at a voltage above that of the VDD pin at any time, even during transient condition. 4. Ground Wiring Pattern When using both small-signal and large-current ground traces, the two ground traces should be routed separately but connected to a single ground at the reference point of the application board to avoid fluctuations in the small-signal ground caused by large currents. Also ensure that the ground traces of external components do not cause variations on the ground voltage. The ground lines must be as short and thick as possible to reduce line impedance. 5. Thermal Consideration Should by any chance the power dissipation rating be exceeded the rise in temperature of the chip may result in deterioration of the properties of the chip. The absolute maximum rating of the Pd stated in this specification is when the IC is mounted on a 70mm x 70mm x 1.6mm glass epoxy board. In case of exceeding this absolute maximum rating, increase the board size and copper area to prevent exceeding the Pd rating. 6. Recommended Operating Conditions These conditions represent a range within which the expected characteristics of the IC can be approximately obtained. The electrical characteristics are guaranteed under the conditions of each parameter. 7. Inrush Current When power is first supplied to the IC, it is possible that the internal logic may be unstable and inrush current may flow instantaneously due to the internal powering sequence and delays, especially if the IC has more than one power supply. Therefore, give special consideration to power coupling capacitance, power wiring, width of ground wiring, and routing of connections. 8. Operation Under Strong Electromagnetic Field Operating the IC in the presence of a strong electromagnetic field may cause the IC to malfunction. 9. Testing on Application Boards When testing the IC on an application board, connecting a capacitor directly to a low-impedance output pin may subject the IC to stress. Always discharge capacitors completely after each process or step. The IC’s power supply should always be turned off completely before connecting or removing it from the test setup during the inspection process. To prevent damage from static discharge, ground the IC during assembly and use similar precautions during transport and storage. 10. Inter-pin Short and Mounting Errors Ensure that the direction and position are correct when mounting the IC on the PCB. Incorrect mounting may result in damaging the IC. Avoid nearby pins being shorted to each other especially to ground, power supply and output pin. Inter-pin shorts could be due to many reasons such as metal particles, water droplets (in very humid environment) and unintentional solder bridge deposited in between pins during assembly to name a few. www.rohm.com © 2015 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 11/17 TSZ02201-0RDR0GZ00280-1-2 06.Jan.2015 Rev.001 BU4051BC BU4051BCF BU4051BCFV Operational Notes – continued 11. Unused Input Pins Input pins of an IC are often connected to the gate of a MOS transistor. The gate has extremely high impedance and extremely low capacitance. If left unconnected, the electric field from the outside can easily charge it. The small charge acquired in this way is enough to produce a significant effect on the conduction through the transistor and cause unexpected operation of the IC. So unless otherwise specified, unused input pins should be connected to the power supply or ground line. 12. Regarding the Input Pin of the IC In the construction of this IC, P-N junctions are inevitably formed creating parasitic diodes or transistors. The operation of these parasitic elements can result in mutual interference among circuits, operational faults, or physical damage. Therefore, conditions which cause these parasitic elements to operate, such as applying a voltage to an input pin lower than the ground voltage should be avoided. Furthermore, do not apply a voltage to the input pins when no power supply voltage is applied to the IC. Even if the power supply voltage is applied, make sure that the input pins have voltages within the values specified in the electrical characteristics of this IC. 13. Ceramic Capacitor When using a ceramic capacitor, determine the dielectric constant considering the change of capacitance with temperature and the decrease in nominal capacitance due to DC bias and others. 14. Area of Safe Operation (ASO) Operate the IC such that the output voltage, output current, and power dissipation are all within the Area of Safe Operation (ASO). www.rohm.com © 2015 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 12/17 TSZ02201-0RDR0GZ00280-1-2 06.Jan.2015 Rev.001 BU4051BC BU4051BCF BU4051BCFV Ordering Information B U 4 0 5 1 Part Number BU4051BC BU4051BCF BU4051BCFV B C x Package None : DIP16 Fone : SOP16 FV : SSOP-B16 x - x x Packaging and forming specification None : Tube E2 : Embossed tape and reel (SOP16/ SSOP-B16) Marking Diagrams DIP16(TOP VIEW) SOP16(TOP VIEW) Part Number Marking BU4051BC Part Number Marking BU4051BCF LOT Number LOT Number 1PIN MARK SSOP-B16(TOP VIEW) Part Number Marking 4051C LOT Number 1PIN MARK www.rohm.com © 2015 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 13/17 TSZ02201-0RDR0GZ00280-1-2 06.Jan.2015 Rev.001 BU4051BC BU4051BCF BU4051BCFV Physical Dimension, Tape and Reel Information Package Name www.rohm.com © 2015 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 DIP16 14/17 TSZ02201-0RDR0GZ00280-1-2 06.Jan.2015 Rev.001 BU4051BC BU4051BCF BU4051BCFV Physical Dimension, Tape and Reel Information - continued Package Name SOP16 (Max 10.35 (include.BURR)) (UNIT : mm) PKG : SOP16 Drawing No. : EX114-5001 www.rohm.com © 2015 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 15/17 TSZ02201-0RDR0GZ00280-1-2 06.Jan.2015 Rev.001 BU4051BC BU4051BCF BU4051BCFV Physical Dimension, Tape and Reel Information - continued Package Name www.rohm.com © 2015 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 SSOP-B16 16/17 TSZ02201-0RDR0GZ00280-1-2 06.Jan.2015 Rev.001 BU4051BC BU4051BCF BU4051BCFV Revision History Date Revision 06.Jan.2015 001 www.rohm.com © 2015 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 Changes New Release 17/17 TSZ02201-0RDR0GZ00280-1-2 06.Jan.2015 Rev.001 Datasheet Notice Precaution on using ROHM Products 1. Our Products are designed and manufactured for application in ordinary electronic equipments (such as AV equipment, OA equipment, telecommunication equipment, home electronic appliances, amusement equipment, etc.). If you (Note 1) , transport intend to use our Products in devices requiring extremely high reliability (such as medical equipment equipment, traffic equipment, aircraft/spacecraft, nuclear power controllers, fuel controllers, car equipment including car accessories, safety devices, etc.) and whose malfunction or failure may cause loss of human life, bodily injury or serious damage to property (“Specific Applications”), please consult with the ROHM sales representative in advance. Unless otherwise agreed in writing by ROHM in advance, ROHM shall not be in any way responsible or liable for any damages, expenses or losses incurred by you or third parties arising from the use of any ROHM’s Products for Specific Applications. (Note1) Medical Equipment Classification of the Specific Applications JAPAN USA EU CHINA CLASSⅢ CLASSⅡb CLASSⅢ CLASSⅢ CLASSⅣ CLASSⅢ 2. ROHM designs and manufactures its Products subject to strict quality control system. However, semiconductor products can fail or malfunction at a certain rate. Please be sure to implement, at your own responsibilities, adequate safety measures including but not limited to fail-safe design against the physical injury, damage to any property, which a failure or malfunction of our Products may cause. The following are examples of safety measures: [a] Installation of protection circuits or other protective devices to improve system safety [b] Installation of redundant circuits to reduce the impact of single or multiple circuit failure 3. Our Products are designed and manufactured for use under standard conditions and not under any special or extraordinary environments or conditions, as exemplified below. Accordingly, ROHM shall not be in any way responsible or liable for any damages, expenses or losses arising from the use of any ROHM’s Products under any special or extraordinary environments or conditions. If you intend to use our Products under any special or extraordinary environments or conditions (as exemplified below), your independent verification and confirmation of product performance, reliability, etc, prior to use, must be necessary: [a] Use of our Products in any types of liquid, including water, oils, chemicals, and organic solvents [b] Use of our Products outdoors or in places where the Products are exposed to direct sunlight or dust [c] Use of our Products in places where the Products are exposed to sea wind or corrosive gases, including Cl2, H2S, NH3, SO2, and NO2 [d] Use of our Products in places where the Products are exposed to static electricity or electromagnetic waves [e] Use of our Products in proximity to heat-producing components, plastic cords, or other flammable items [f] Sealing or coating our Products with resin or other coating materials [g] Use of our Products without cleaning residue of flux (even if you use no-clean type fluxes, cleaning residue of flux is recommended); or Washing our Products by using water or water-soluble cleaning agents for cleaning residue after soldering [h] Use of the Products in places subject to dew condensation 4. The Products are not subject to radiation-proof design. 5. Please verify and confirm characteristics of the final or mounted products in using the Products. 6. In particular, if a transient load (a large amount of load applied in a short period of time, such as pulse. is applied, confirmation of performance characteristics after on-board mounting is strongly recommended. Avoid applying power exceeding normal rated power; exceeding the power rating under steady-state loading condition may negatively affect product performance and reliability. 7. De-rate Power Dissipation (Pd) depending on Ambient temperature (Ta). When used in sealed area, confirm the actual ambient temperature. 8. Confirm that operation temperature is within the specified range described in the product specification. 9. ROHM shall not be in any way responsible or liable for failure induced under deviant condition from what is defined in this document. Precaution for Mounting / Circuit board design 1. When a highly active halogenous (chlorine, bromine, etc.) flux is used, the residue of flux may negatively affect product performance and reliability. 2. In principle, the reflow soldering method must be used on a surface-mount products, the flow soldering method must be used on a through hole mount products. If the flow soldering method is preferred on a surface-mount products, please consult with the ROHM representative in advance. For details, please refer to ROHM Mounting specification Notice-GE © 2013 ROHM Co., Ltd. All rights reserved. Rev.004 Datasheet Precautions Regarding Application Examples and External Circuits 1. If change is made to the constant of an external circuit, please allow a sufficient margin considering variations of the characteristics of the Products and external components, including transient characteristics, as well as static characteristics. 2. You agree that application notes, reference designs, and associated data and information contained in this document are presented only as guidance for Products use. Therefore, in case you use such information, you are solely responsible for it and you must exercise your own independent verification and judgment in the use of such information contained in this document. ROHM shall not be in any way responsible or liable for any damages, expenses or losses incurred by you or third parties arising from the use of such information. Precaution for Electrostatic This Product is electrostatic sensitive product, which may be damaged due to electrostatic discharge. Please take proper caution in your manufacturing process and storage so that voltage exceeding the Products maximum rating will not be applied to Products. Please take special care under dry condition (e.g. Grounding of human body / equipment / solder iron, isolation from charged objects, setting of Ionizer, friction prevention and temperature / humidity control). Precaution for Storage / Transportation 1. Product performance and soldered connections may deteriorate if the Products are stored in the places where: [a] the Products are exposed to sea winds or corrosive gases, including Cl2, H2S, NH3, SO2, and NO2 [b] the temperature or humidity exceeds those recommended by ROHM [c] the Products are exposed to direct sunshine or condensation [d] the Products are exposed to high Electrostatic 2. Even under ROHM recommended storage condition, solderability of products out of recommended storage time period may be degraded. It is strongly recommended to confirm solderability before using Products of which storage time is exceeding the recommended storage time period. 3. Store / transport cartons in the correct direction, which is indicated on a carton with a symbol. Otherwise bent leads may occur due to excessive stress applied when dropping of a carton. 4. Use Products within the specified time after opening a humidity barrier bag. Baking is required before using Products of which storage time is exceeding the recommended storage time period. Precaution for Product Label QR code printed on ROHM Products label is for ROHM’s internal use only. Precaution for Disposition When disposing Products please dispose them properly using an authorized industry waste company. Precaution for Foreign Exchange and Foreign Trade act Since our Products might fall under controlled goods prescribed by the applicable foreign exchange and foreign trade act, please consult with ROHM representative in case of export. Precaution Regarding Intellectual Property Rights 1. All information and data including but not limited to application example contained in this document is for reference only. ROHM does not warrant that foregoing information or data will not infringe any intellectual property rights or any other rights of any third party regarding such information or data. ROHM shall not be in any way responsible or liable for infringement of any intellectual property rights or other damages arising from use of such information or data.: 2. No license, expressly or implied, is granted hereby under any intellectual property rights or other rights of ROHM or any third parties with respect to the information contained in this document. Other Precaution 1. This document may not be reprinted or reproduced, in whole or in part, without prior written consent of ROHM. 2. The Products may not be disassembled, converted, modified, reproduced or otherwise changed without prior written consent of ROHM. 3. In no event shall you use in any way whatsoever the Products and the related technical information contained in the Products or this document for any military purposes, including but not limited to, the development of mass-destruction weapons. 4. The proper names of companies or products described in this document are trademarks or registered trademarks of ROHM, its affiliated companies or third parties. Notice-GE © 2013 ROHM Co., Ltd. All rights reserved. Rev.004 Datasheet General Precaution 1. Before you use our Pro ducts, you are requested to care fully read this document and fully understand its contents. ROHM shall n ot be in an y way responsible or liabl e for fa ilure, malfunction or acci dent arising from the use of a ny ROHM’s Products against warning, caution or note contained in this document. 2. All information contained in this docume nt is current as of the issuing date and subj ect to change without any prior notice. Before purchasing or using ROHM’s Products, please confirm the la test information with a ROHM sale s representative. 3. The information contained in this doc ument is provi ded on an “as is” basis and ROHM does not warrant that all information contained in this document is accurate an d/or error-free. ROHM shall not be in an y way responsible or liable for an y damages, expenses or losses incurred b y you or third parties resulting from inaccur acy or errors of or concerning such information. Notice – WE © 2015 ROHM Co., Ltd. All rights reserved. Rev.001 Datasheet BU4051BC - Web Page Buy Distribution Inventory Part Number Package Unit Quantity Minimum Package Quantity Packing Type Constitution Materials List RoHS BU4051BC DIP16 1000 25 Tube inquiry Yes