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Integrated Circuits (ICs)

MOC3063 Optocoupler: Datasheet, Features, Applications

Product OverviewThe MOC3063 is an optically coupled isolator. It consists of a Gallium Arsenide infrared emitting diode coupled with a monolithic silicon detector performing the functions of a zero-crossing bilateral triac mounted in a standard 6 pin dual-in-line package.CatalogProduct OverviewMOC3063 CAD ModelsMOC3063 Package DimensionsMOC3063 Features MOC3063 Product AttributesMOC3063 ApplicationsAlternate PartsUsing WarningsMOC3063 vs MOC3042MOC3063 ManufacturerComponent DatasheetFAQMOC3063 is designed for use with a triac in the interface of logic systems to equipment powered from 115/240 Vac lines, such as solid–state relays, industrial controls, motors, solenoids and consumer appliances, etc.MOC3063 CAD ModelsMOC3063 CAD ModelsMOC3063 Package DimensionsMOC3063 Package DimensionMOC3063 Features • Simplifies Logic Control of 115/240 VAC Power• Zero Voltage Crossing to Minimize Conducted and Radiated Line Noise• 600 V Peak Blocking Voltage• Superior Static dv/dt• 600 V/μs (MOC306xM)• 1000 V/μs (MOC316xM)• Safety and Regulatory Approvals• UL1577, 4,170 VACRMS for 1 Minute• DIN EN/IEC60747-5-5MOC3063 Product AttributesSpecificationsValuesCategoriesIsolatorsOptoisolators - Triac, SCR OutputManufacturerLite-On Inc.Series-PackagingTubePart StatusActiveOutput TypeTriacZero Crossing CircuitYesNumber of Channels1Voltage - Isolation5000VrmsVoltage - Off State600VStatic dV/dt (Min)1kV/µsCurrent - LED Trigger (Ift) (Max)5mACurrent - Hold (Ih)400µA (Typ)Turn On Time-Voltage - Forward (Vf) (Typ)1.2VCurrent - DC Forward (If) (Max)50mAOperating Temperature-40°C ~ 100°CMounting TypeThrough HolePackage / Case6-DIP (0.300", 7.62mm)Supplier Device Package6-DIPApproval AgencyCSA, FIMKO, ULPart StatusActiveMOC3063 Applications• Consumer Appliances• Industrial Motor• Motor Drive & ControlAlternate PartsMCP3020, MOC3033SR2VM, MOC3042, MOC3040, BRT12M, MOC3021TVMMOC3012M, MOC3023VM, MOC3012VM, MOC3041SR2VMUsing WarningsPlease check their parameters and pin configuration before replacing them in your circuit.MOC3063 vs MOC3042SpecificationsMOC3063MOC3042Rohs CodeNoNoPart Life Cycle CodeObsoleteObsoleteIhs ManufacturerFAIRCHILD SEMICONDUCTOR CORPMOTOROLA INCPackage DescriptionDIP-6*Reach Compliance CodecompliantunknownHTS Code8541.40.80.008541.40.80.00Additional FeatureUL APPROVEDUL RECOGNIZED, LOGIC COMPATIBLEConfigurationSINGLESINGLEForward Current-Max0.06 A0.06 AInput Trigger Current-Nom5 mA10 mAIsolation Voltage-Max7500 V7500 VJESD-609 Codee0e0Number of Elements11Operating Temperature-Max85 °C85 °COperating Temperature-Min-40 °C-40 °COptoelectronic Device TypeTRIAC OUTPUT OPTOCOUPLER WITH ZERO CRSVRTRIAC OUTPUT OPTOCOUPLER WITH ZERO CRSVRPeak Off-state Voltage-Min600 V400 VTerminal FinishTin/Lead (Sn/Pb)Tin/Lead (Sn/Pb)Base Number Matches2411Rohs CodeNoNoPart Life Cycle CodeObsoleteObsoleteIhs ManufacturerFAIRCHILD SEMICONDUCTOR CORPMOTOROLA INCPackage DescriptionDIP-6*Reach Compliance CodecompliantunknownHTS Code8541.40.80.008541.40.80.00Additional FeatureUL APPROVEDUL RECOGNIZED, LOGIC COMPATIBLEConfigurationSINGLESINGLEForward Current-Max0.06 A0.06 AInput Trigger Current-Nom5 mA10 mAIsolation Voltage-Max7500 V7500 VJESD-609 Codee0e0Number of Elements11Operating Temperature-Max85 °C85 °COperating Temperature-Min-40 °C-40 °COptoelectronic Device TypeTRIAC OUTPUT OPTOCOUPLER WITH ZERO CRSVRTRIAC OUTPUT OPTOCOUPLER WITH ZERO CRSVRPeak Off-state Voltage-Min600 V400 VTerminal FinishTin/Lead (Sn/Pb)Tin/Lead (Sn/Pb)Base Number Matches2411Component DatasheetMOC3063 DatasheetMOC3063 ManufacturerLite-On (also known as LiteOn and LiteON) is a Taiwanese Company that primarily manufactures consumer electronics, including LEDs, semiconductors, computer chassis, monitors, motherboards, optical disc drives, and other electronic components. The Lite-On group also consists of some non-electronic companies like a finance arm and a cultural company.FAQWhat is a MOC3063?The MOC3063 IC is a 6-pin optocoupler that has an IR LED coupled to a TRIAC with Zero-Crossing option. What does the MOC3063 consist of?A Gallium Arsenide infrared emitting diode coupled with a monolithic silicon detector.
kynix On 2022-03-01   3141
Integrated Circuits (ICs)

AD590 Based Digital Temperature Control Device Design

I. IntroductionFor large systems such as missile weapons and equipment, their performance is often affected by the external environment and their own operating conditions. Among them, the influence of temperature often plays a very important role. Therefore, temperature detection and control have always been the focus of many researchers. However, some temperature measurement and control devices have low accuracy and inaccurate temperature control, and some new instruments are expensive and difficult to promote. It should be particularly pointed out that the temperature measurement and control system developed in the past is usually an independent system, one thing for one use, it is difficult to be adopted by other systems, and there are problems such as maintenance difficulties and inconvenience. To this end, the author developed a high-precision temperature measurement and control device suitable for research and development under laboratory conditions based on the currently popular modular design principle. The device uses a new integrated temperature sensor AD590  as the temperature measurement element and provides two control units for experimental comparison. By measuring and controlling the temperature in the thermostat, satisfactory results have been obtained.CatalogI. IntroductionII.Working PrincipleIII. Integrated Temperature Sensor AD590IV. Temperature Measuring BridgeV. PID RegulatorVI. Program DesignVII. Experimental Analysis and ConclusionFAQOrdering & QuantityII. Working PrincipleFigure 1 is the electrical schematic diagram of the WCZ-98 temperature measurement and control device. Its working principle is: the temperature signal taken by the temperature measuring bridge with AD590 as a bridge arm is differentially amplified and buffered and then sent all the way to the digital display for digital temperature display, and the other is compared with the set value. The compared difference is controlled by switch K and can choose to send to a two-way adjustment controller. One route is composed of a comparison amplifier and a relay, which can be used as an adjustment controller to form an independent temperature measurement and control equipment without connecting to a computer; the other route is a PID  regulator (composed of A/D, D/A, and Computer composition of PID adjustment software) and SCR composition. The signal from the regulating controller realizes temperature control through the temperature control actuator.Figure 1 Electrical schematic diagram of temperature measurement and control device III. Integrated Temperature Sensor AD590 AD590 is a dedicated integrated temperature sensor produced by an American AD company, which belongs to the current output type. Figure 2 shows the current-voltage characteristic curve of AD590 at three different temperatures. In a certain temperature range, it is equivalent to a high resistance current source, and its current temperature sensitivity is lμA/K. It is not susceptible to interference from contact resistance, lead resistance, voltage noise, etc. In addition, it also has the characteristics of small size, high-temperature measurement accuracy, good linearity, and strong interchangeability. It is very suitable for long-distance measurement and control. It is also suitable for the characteristics of modular and split structures required by this article. The main technical indicators are: Temperature measurement range:hCurrent output (calibration factor): lμA/K;Power supply voltage: DC 4-30V;Linearity: less than ±0.5℃ in the full scale range;Repeatability: ±0.1℃;Output impedance: about 10MQLong-term drift: ±0.1℃/monthFigure 2 I-V curve of AD590The current Ir flowing through the AD590  is a single-valued function of the absolute temperature of its environment, and the microampere of Ir is equal to the absolute temperature T, namely: Ir=T×10-6A=TμA (1) IV. Temperature Measuring BridgeFigure 3 is the schematic diagram of the temperature measurement bridge. The voltage formed on the current IiR2 and Rw2 flowing through the AD590 is: Ul=Ii×(R2+Rw2) (2)Figure 3 Schematic diagram of temperature measuring bridgeBy adjusting Rw2 to make (R2+Rw2) equal to 10K, substituting formula (1) into formula (2), we can get:   U1=Ii×(R2+Rw2)=T×10-2V (3)   U2=2.732V by adjusting Rwl. Then the output of the bridge is:   UAB=U1﹣U2=T×10-2﹣2.732=(T﹣273.2)×10-2V (4) Because T is the absolute ambient temperature measured by AD590, after subtracting 273.2 from it, the Celsius temperature t can be obtained, namely:   UAB=t×10-2V (5) At this point, the temperature measuring bridge converts the ambient temperature into a voltage value that is proportional to the temperature in Celsius. V. PID Regulator One of the adjustment controllers of the temperature measurement and control device uses a PID  regulator (proportional integral derivative regulator), which can determine the size of the control quantity according to the proportional value, integral value, and derivative value of the difference between the temperature set value and the actual value. The temperature measurement and control device adopts the output feedback type control. Extracting this part from the general principle diagram, you can get the PID  control principle diagram as shown in Figure 4. In the figure, Ud and U are the set value and actual value of the thermostat respectively, the error e=Ud﹣KT, K is the magnification of the measuring transducer, and Y is the adjustment value of the PID output.Figure 4 PID control principle diagramThe simulation expression of PID algorithm is:In the formula, Y(t): regulator output value;E(t): input deviation;KP: regulator proportional coefficient;Tl, TD: verse unit integral, derivative timeAfter discretizing equation (6), the PID incremental control equation is obtained:In the formula, the integral coefficient Kl=KPT/T1, the differential coefficient KD=KPTD/r, and T is the sampling period.then apply (7) to Z-transform, and get:In the experiment, the author used a step signal to roughly measure the response in the open-loop state. From the step response curve, it is known that the thermostat is a first-order inertia link plus a pure time delay link, namely:The lag time r of the system is determined to be approximately 20 seconds, and the target time constant TP is approximately 50 seconds. Select the control degree to be 1.5, according to the step response curve tuning parameter method (refer to literature [1]), obtain: T=0.34z=6.8sKr=0.85Tr, /r=2.125T1=1.62r=32.4sTD=0.65r=13s Substituting the above value for equation (9), we can obtain: Q0=6.41Q1=-5.96Q2=4.06 The equation of PID regulator is: VI. Program Design The PID control program flow of the WCZ-98 temperature measurement and control device is shown in Figure 5. The basic idea is the same as the general PID control flow. It’s no need to repeat here.Figure 5 PID control program flow chart VII. Experimental Analysis and Conclusion Put the temperature measurement and control device into a thermostat with an external dimension of 248×208×262 (mm). The thermostat uses 50mm thick polystyrene as the heat insulation material and water as the medium. The heating device is composed of 2 SRS3-220/0.5 heating tubes and auxiliary parts to prevent leakage. The temperature can be preset outside the thermostat and there is a switch to select the type of controller. Through experiments, comparing the control effects of the two adjustment control methods, we found that the temperature of the adjustment controller composed of a comparison amplifier and a relay is not stable during the temperature control process and always fluctuates within a certain error range. The temperature control performance of the regulating controller composed of PID regulator and thyristor is very good. Taking temperature control of 60°C as an example, the temperature change curve obtained by the experiment is shown in Figure 6.Figure 6 PID temperature control experiment result curveIt can be seen that the use of analog circuits for adjustment and control is beneficial to make the measurement and control device an independent instrument (no need to connect to a computer), and its temperature measurement and control accuracy can meet the general requirements; and through PID control, its precision of temperature measurement and control is very high. It is used in conjunction with the thermostat and the self-developed SYZJX-2 experimental adapter box. The analog input board PCL-818L and the analog output board PCL-726 are connected to the computer to achieve high-precision temperature control.FAQWhat is AD590?AD590 is a temperature sensor, the current output sensitivity is 1μA/℃, the standard output value is 298.2μA at 25℃, and the working voltage range is 4~30V.What are the characteristics of AD590 temperature sensor?Single function (only temperature measurement), small temperature measurement error, low price, fast response speed, long transmission distance, small size, micro power consumption, etc. It is suitable for remote temperature measurement and temperature control without non-linear calibration. The peripheral circuit is simple.How to detect the quality of AD590?AD590 has a current of 273 mA at 0°. Because 2113 is a Wen sensitive resistor 5261, it means that it is greatly affected by the surrounding temperature 4102. It is very difficult to measure without relying on 1653 other tools. Give you some suggestions.When the ambient temperature rises by one degree, the current of AD590 increases by 1uA. What you have to do is to work with AD590 simultaneously with the help of a high-precision temperature test instrument. After AD590 series 10K resistance, measure its voltage, that is to say, it should be 2.73V at 0°, and 2.98V at room temperature 25°.For higher accuracy, it is recommended that you use the electronic building block software Ardunio for measurement, and put the corresponding data into MATLAB for linear regression. The better the linearity, the more stable the measurement.AD590 is not a high-precision temperature testing device. If high-precision testing is required, other components are recommended.What is the difference between AD590 and PT100?AD590 is a current-type temperature sensor. It converts temperature changes into current conversion. The simplest processing is to pass a resistor (10K) after the output to convert the current into a voltage, and then through the detection voltage, the current at this time can be deduced. Use the relationship between current and temperature in the sensor data to calculate the current temperature.PT100 is a resistance type temperature sensor, which converts temperature changes into resistance changes. The simplest process is to place Pt100 in a bridge, use the voltage difference at the midpoint of the bridge arm, and use a differential amplifier circuit (instrument amplifier circuit) Amplify the voltage, use the amplifier gain and bridge structure data, and use the detected voltage to inversely calculate the current resistance value, and use the relationship between resistance and temperature in the PT100 data sheet to calculate the current temperature.Is AD590 a thermocouple or a thermal resistance?It is neither a thermocouple nor a thermal resistance. The main principle is to detect the temperature according to the temperature change, the output current change, and the current size.
kynix On 2022-02-28   3141
Integrated Circuits (ICs)

CR123A VS RCR123A: Which ones are better?[FAQ&Video]

Overview of CR123AOverview of RCR123AVideo Related to the CR123A VS RCR123ACR123A VS RCR123A DimensionsCR123A VS RCR123A FeaturesCR123A VS RCR123A ApplicationsCR123A VS RCR123A SpecificationsThe differences between the CR123A and RCR123AConclusion of CR123A VS RCR123ACR123A VS RCR123A FAQOverview of CR123AA great option for flashlight or lithium camera batteries, the CR123A battery is distinguished by its 34.5 x 17mm or 2/3A cell size, lithium (LiMnO2) chemistry, and high 3V voltage. They are typically primary (non-rechargeable) batteries with a button top. For flashlights that use 18650 cells, a backup power supply of two CR123A batteries is frequently employed. Overview of RCR123AWith a 650mAh capacity and 3.7V output power, this Olight RCR123A Lithium-Ion Rechargeable Battery is suitable for high-drain applications. Positive protection against over-discharge current, over-discharge voltage, short circuit, and overcharge is provided by the location of the positive contacts on the battery and the positive protection circuit. The battery is designed to prevent liquid electrolyte leakage and can last up to 500 charge and discharge cycles. Video Related to the CR123A VS RCR123AVideo Description: The video mainly talks about the detailed information about the CR123A. Hope you can quick learn some knowledge about the CR123A. CR123A VS RCR123A DimensionsCR123A DimensionsRCR123A Dimensions CR123A VS RCR123A FeaturesCR123A FeaturesOperating temperature range between -40° C to +-70° CHigh current pulse discharge capabilityStable voltage level during dischargeHigh safety and reliability RCR123A FeaturesOptimal for high-drain devicesUsing an innovational positive protection circuit and its positions on the positive of battery which is different from traditional circuit protecting board placementOver discharge current protectionOver discharge voltage protectionShort circuit protectionOvercharge protectionUp to 500 charge and discharge cyclesMaximum 2A constant discharging currentImproved Battery Safety Free from Leakage of Liquid ElectrolyteLow Battery Internal Impedance CR123A VS RCR123A ApplicationsCR123A ApplicationsMemory backupPlc’sMain powerUPS backupBoard mountableAerospaceMilitaryTransportationVoting machinesLaserHospitalPhotographicFlashlightsCordless PhonesRemote ControlsGeneral Use RCR123A ApplicationsHigh-drain devicesArlo Security CameraFlashlightGeneral Use CR123A VS RCR123A Specifications RCR123ACR123ATypeRCR123A-650mAhCR123A-1.55 AhModel NoORB-163P06LITH-8 PANAChemistryLi-ionLithium Manganese DioxideCapacity (mAh)650mAh1.55 AhVoltage3.7V3 VWeight17.7g17 gDimensions(Diameter x Height): 16 × 34 mm34.2mm H x 17mm Dia.Primary TypeRechargeableNon-RechargeableOperating temperature -20°C to 60°C -40°C to 70°C The differences between the CR123A and RCR123AOutput Voltage: RCR123A batteries often have a greater voltage (3.6–3.7 volts) than CR123A batteries, which can affect the operation of sensitive electronic equipment. CR123A batteries have a nominal voltage of 3.0 volts. Check to see if your gadget can be powered by an RCR123A battery before swapping out the CR123A battery with one. Capacity: RCR123A batteries have a capacity of 650 mAh, compared to 1550 mAh for CR123A batteries, with most models having a capacity of 700–750 mAh. Although this must be confirmed for each model, high-capacity RCR123A batteries often have a lower maximum drain current than RCR123A batteries with lower capacities. Storage and Shelf life: RCR123A batteries must be completely charged before the first usage because they are manufactured and carried with just a partial charge for safety reasons. RC123A batteries, on the other hand, are created and shipped fully charged and prepared for use at any time. While the best RCR123A batteries lose 10–30% of their initial charge after a year in storage, CR123A batteries have a shelf life of up to or even more than 10 years. Charging/Discharging cycles: Only once may a CR123A battery be discharged before it needs to be properly disposed of and replaced with a new CR123A battery. On the other hand, a decent RCR123A battery may withstand 1000–1200 charging/discharging cycles when charged with a suitable charger and used as directed by the manufacturer. RCR123A batteries are utilized in frequently used devices because of their 1:1000-1200 ratio, which results in significant battery savings. Conclusion of CR123A VS RCR123ABetween CR123A and RCR123A batteries, the following key distinctions exist: output voltage and capacity. While RCR123A batteries typically have a higher voltage (3.6–3.7 volts), CR123A batteries have a nominal voltage of 3.0 volts. This voltage differential can make it difficult for sensitive electronic devices to operate. The capacity of RCR123A batteries is 650 mAh as opposed to 1550 mAh for CR123A batteries. The maximum drain current of high-capacity RCR123A batteries is frequently lower than that of lower-capacity RCR123A batteries. CR123A VS RCR123A FAQWhat is the difference between CR123 and CR123A Batteries?The CR123 battery is identical to the CR123A battery in every way. Different manufacturers have different names for their items, which accounts for the variations in designations. Are CR123A Batteries Rechargeable?CR123A batteries are primary batteries that are not rechargeable and are regarded as disposable (or recycled). When it comes to lithium batteries in particular, trying to recharge a battery that is not designed to be recharged can be quite dangerous. Lithium batteries have the potential to explode when improperly charged, seriously harming the user, the charger, and the gadget. Is RCR123A the same as CR123A?The following are the primary distinctions between CR123A and RCR123A batteries: - output voltage: RCR123A batteries often have a higher voltage (3.6–3.7 volts) than CR123A batteries, and this voltage differential might cause problems with sensitive electronic equipment. CR123A batteries have a nominal voltage of 3.0 volts. What is a RCR123A battery?With a 650mAh capacity and 3.7V output power, this Olight RCR123A Lithium-Ion Rechargeable Battery is suitable for high-drain applications. what is a CR123A battery?High power lithium-based CR123A Batteries are widely utilized in security alarm systems. They are the preferred option of PIR sensor manufacturers in wireless alarm systems due to their high capacity and long lifespan.
kynix On 2022-08-16   3133
Integrated Circuits (ICs)

DS3231 RTC: Introduction to Features and Pinout [Video]

The DS3231 is a extremely accurate I2C real- time clock (RTC) .The DS3231 has an internal temperature-compensated crystal oscillator (TCXO) which is not affected by temperature and therefore has higher accuracy so that it can be accurate to a few minutes per year.In this blog, Apogeeweb will briefly introduce the basic information of DS3231, as well as the pins and functions of DS3231.Wondering how to use the DS3231 real time clock module?CatalogDS3231 OverviewDS3231 PinoutComponent DatasheetFAQDS3231 OverviewThe DS3231 data sheet explains that this component is "Extremely Accurate I²C-Integrated RTC/TCXO/Crystal" And, hey, it does exactly what the tin says! This Real Time Clock (RTC) is the most accurate you can get in a small, low power pack.Most RTCs use an external 32kHz timing crystal, which is used to keep time with low current draw. And that's all right and good, but those crystals have a slight drift, particularly when the temperature changes (the temperature changes the oscillation frequency quite slightly, but it adds up!) This RTC is in a beefy package because the crystal is within the chip! And there's a temperature sensor right next to the integrated crystal. This sensor compensates for shifts in frequency by adding or removing clock ticks so that timekeeping remains on track.This is the finest RTC you can get, and now we've got it in a compact, breadboard-friendly breakout. With a coin cell plugged in the back, you can get years of precision timekeeping even when the main power is lost. Great for data logging and clocks, or anything you really need to know the time .Comes as a fully assembled, tested breakout plus a small piece of header. You can solder the header to plug it directly into a breadboard or solder the wires.DS3231 Pinout- Power PinVin-This is the pin of power. Since the RTC can be powered from 2.3V to 5.5V, you do not need a 3.3V or 5V logic/power regulator or level switch. To power the board, give it the same power as the logic level of your microcontroller-e.g. for a 5V microphone like Arduino, use 5V.GND-a common ground for power and logic- I2C Logic PinSCL-I2C clock pin, connect the I2C clock line to your microcontrollers. This pin has a 10K pullup resistor for Vin.SDA-I2C data pin, connect to the I2C data line of your microcontrollers. This pin has a 10K pullup resistor for Vin.- Other PinBAT-This is the same connection as the positive battery pad. You can use this if you want to power something else from a coin cell, or if you want to backup the battery from another separate battery. VBat can be between 2.3V and 5.5V, and the DS3231 switches when the main Vin power is lost.32K-Output of 32KHz oscillator. Open the drain, you need to attach a pull-up to read this signal from the microcontroller pinSQW-Optional square wave output or interrupt output. Open the drain, you need to attach a pull-up to read this signal from the microcontroller pinRST-This one is a bit different from most RST pins, rather than just an input, it is designed to be used to reset an external device or to indicate when the main power is lost. Open drain, but it has an internal 50K pull-up. This pin voltage is kept high by the pull-up as long as Vin is present. When Vin drops and the chip switches to battery backup, the pin goes down.That’s all for our introduction to the DS3231 RTC. If you find this blog useful, please bookmark our website Apogeeweb, we will provide you with electronic component blogs, industry news, tools, etc. that you are interested in. Stay tuned for our next blog…Component DatasheetDS3231 DatasheetFAQWhat is DS3231?The DS3231 is a low-cost, extremely accurate I²C real-time clock (RTC) with an integrated temperature-compensated crystal oscillator (TCXO) and crystal. The device incorporates a battery input, and maintains accurate timekeeping when main power to the device is interrupted.How Accurate is DS3231?This usually results with the clock being off by around five or so minutes per month. However, the DS3231 is much more accurate, as it comes with an internal Temperature Compensated Crystal Oscillator(TCXO) which isn't affected by temperature, making it accurate down to a few minutes per year at the most.How to Set Time on my RTC DS3231?(This is A Simple Guide to Setting Time on a DS3231/DS3107/DS1337 Real Time Clock With Arduino UNO)Step 1: Parts. You'll need only: ...Step 2: Connect RTC to Arduino. Place the coin-cell battery in the RTC.Step 3: Download the Arduino Library and Run the SetTime Sketch.What is A DS3231 RTC Module?The DS3231 is a low-cost, extremely accurate I2C real-time clock (RTC) with an integrated temperature- compensated crystal oscillator (TCXO) and crystal. The device incorporates a battery input, and maintains accurate timekeeping when main power to the device is interrupted.What is RTC?A real-time clock (RTC) is an electronic device (most often in the form of an integrated circuit) that measures the passage of time. Although the term often refers to the devices in personal computers, servers and embedded systems, RTCs are present in almost any electronic device which needs to keep accurate time.Are CR2430 and CR2032 Interchangeable?​CR2430 coin cell batteries are known for being slightly wider than their CR2025 and CR2032 counterparts. Security sensors that use coin batteries like the CR2430 are usually small and unobtrusive. But since the CR2430 batteries are wider, they cannot be used interchangeably with CR2025 and CR2032 batteries.
kynix On 2022-03-08   3132
Integrated Circuits (ICs)

TL494CN Control Circuits: Datasheet, CAD Models and Block Diagram

Video about TL494CN CatalogDescriptionCAD ModelsPin ConfigurationBlock DiagramFeaturesApplicationsDatasheetProduct AttributesManufacturerUsing WarningDescriptionThe TL494 device incorporates all the functions required in the construction of a pulse-width modulation (PWM) control circuit on a single chip. Designed primarily for power-supply control, this device offers the flexibility to tailor the power-supply control circuitry to a specific application. The TL494 device contains two error amplifiers, an on-chip adjustable oscillator, a dead-time control (DTC) comparator, a pulse-steering control flip-flop, a 5-V, 5%-precision regulator, and output-control circuits. The error amplifiers exhibit a common-mode voltage range from –0.3 V to VCC – 2 V. The dead-time control comparator has a fixed offset that provides approximately 5% dead time. The on-chip oscillator can be bypassed by terminating RT to the reference output and providing a sawtooth input to CT, or it can drive the common circuits in synchronous multiple-rail power supplies. The uncommitted output transistors provide either common-emitter or emitter-follower output capability.The TL494 device provides for push-pull or singleended output operation, which can be selected through the output-control function. The architecture of this device prohibits the possibility of either output being pulsed twice during push-pull operation. The TL494C device is characterized for operation from 0°C to 70°C. The TL494I device is characterized for operation from –40°C to 85°C. CAD Models Figure: TL494CN PCB Symbol  Figure: TL494CN Footprint  Figure: TL494CN 3D Models Pin Configuration Figure: TL494CN Pin Configuration Block Diagram Figure: TL494CN Block Diagram FeaturesComplete PWM Power-Control CircuitryUncommitted Outputs for 200-mA Sink orSource CurrentOutput Control Selects Single-Ended orPush-Pull OperationInternal Circuitry Prohibits Double Pulse atEither OutputVariable Dead Time Provides Control OverTotal RangeInternal Regulator Provides a Stable 5-VReference Supply With 5% ToleranceCircuit Architecture Allows Easy Synchronization ApplicationsDesktop PCsMicrowave OvensPower Supplies: AC/DC, Isolated,With PFC, > 90 WServer PSUsSolar Micro-InvertersWashing Machines: Low-End and High-EndE-BikesPower Supplies: AC/DC, Isolated,No PFC, < 90 WPower: Telecom/Server AC/DC Supplies:Dual Controller: AnalogSmoke DetectorsSolar Power Inverters DatasheetTL494CN-Datasheet Product AttributesManufacturer:Texas InstrumentsProduct Category:Switching ControllersTopology:Boost, Buck, Flyback, Forward, Push-PullNumber of Outputs:2 OutputSwitching Frequency:300 kHzDuty Cycle - Max:0.45Output Voltage:40 VOutput Current:200 mAMinimum Operating Temperature:- 40 CMaximum Operating Temperature:+ 85 CMounting Style:Through HolePackage / Case:PDIP-16Packaging:TubeHeight:4.57 mmLength:19.3 mmSeries:TL494Type:Voltage Mode PWM ControllersBrand:Texas InstrumentsFall Time:40 nsProduct Type:Switching ControllersRise Time:100 nsFactory Pack Quantity:25Subcategory:PMIC - Power Management ICsUnit Weight:0.033570 oz ManufacturerTexas Instruments Incorporated (TI) is an American technology company headquartered in Dallas, Texas, that designs and manufactures semiconductors and various integrated circuits, which it sells to electronics designers and manufacturers globally. It is one of the top 10 semiconductor companies worldwide based on sales volume.The company's focus is on developing analog chips and embedded processors, which account for more than 80% of its revenue. Using WarningNote: Please check their parameters and pin configuration before replacing them in your circuit. FAQWhat is the TL494 device designed primarily for?Power-supply control What is the operation temperature of the TL494C device?0°C to 70°C What is the operation temperature of the TL494I device?–40°C to 85°C
kynix On 2022-04-12   3121
Integrated Circuits (ICs)

LM2904 Dual Op Amp: Pinout, Use, Datasheet

LM2904 is a dual operational amplifier. This blog introduces the LM2904 dual operational amplifier about its pinout, features, applications, and its uses, etc.CatalogLM2904 DescriptionLM2904 PinoutLM2904 FeaturesLM2904 ParameterWhere to Use LM2904LM2904 ApplicationLM2904 PackageLM2904 ManufacturerComponent DatasheetFAQLM2904 DescriptionLM2904 is a dual operatioal amplifier. It has two built-in internal amplifiers, specially designed to operate with a single power supply. They can also be operated from divided power supplies. It normally operates on a 3.3V power supply, which is the most common supply for digital systems. LM2904 has different features that make it more efficient and popular on the market. These features include large ranges of power supply, wide bandwidth, etc. We can use LM-2904 while designing active filters, transducer amplifiers, DC blocks, etc.LM2904 PinoutLM2904LM2904 Pinout Pin NumberPin NameDescription1OUTPUT AOutput of Op-Amp A2Inverting Input AInverting Input of Op-Amp A3Non-Inverting Input ANon-Inverting Input of Op-Amp A4GNDGround or Negative Supply Voltage5Non-Inverting Input BNon-Inverting Input of Op-Amp B6Inverting Input BInverting Input of Op-Amp B7OUTPUT BOutput of Op-Amp B8VCCPositive Supply VoltageLM2904 FeaturesSupply Voltage: 3V to 26 VOperating Supply Current: 250uAOutput Current per Channel: 30 mACMRR - Common Mode Rejection Ratio: 70 dBIb - Input Bias Current: 250nAVos - Input Offset Voltage: 7 mVPSRR - Power Supply Rejection Ratio: 50 dB Large DC Voltage Gain: 100 dBWide Bandwidth (Unity Gain): 1 MHzAvailable in 8-Bump DSBGA Chip-Sized PackageLM2904 ParameterManufacturer:Texas InstrumentsProduct Category:Operational Amplifiers - Op AmpsRoHS:DetailsSeries:LM2904Amplifier Type:High Gain AmplifierOperating Supply Current:350 uAMinimum Operating Temperature:- 40 CMaximum Operating Temperature:+ 125 CMounting Style:Through HolePackage / Case:PDIP-8Packaging:TubeHeight:4.57 mmLength:9.81 mmWidth:6.35 mmBrand:Texas InstrumentsOperating Supply Voltage:3 V to 26 V, +/- 1.5 V to +/- 13 VProduct Type:Op Amps - Operational AmplifiersFactory Pack Quantity:50Subcategory:Amplifier ICsNumber of Channels:2 ChannelGBP - Gain Bandwidth Product:700 kHzCMRR - Common Mode Rejection Ratio:65 dB to 80 dBIb - Input Bias Current:250 nAVos - Input Offset Voltage:7 mVProduct:Operational AmplifiersSupply Type:Single, DualDual Supply Voltage:+/- 3 V, +/- 5 V, +/- 9 V, +/- 12 VMaximum Dual Supply Voltage:+/- 13 VMinimum Dual Supply Voltage:+/- 1.5 VUnit Weight:0.015535 ozSR - Slew Rate:0.3 V/usShutdown:No Shutdownen - Input Voltage Noise Density:40 nV/sqrt HzOutput Current per Channel:30 mAVcm - Common Mode Voltage:Negative Rail to Positive Rail - 1.5 VSupply Voltage - Max:26 VSupply Voltage - Min:3 VVoltage Gain dB:100 dBTechnology:BipolarInput Type:Rail-to-RailFeatures:Cost OptimizedWhere to Use LM2904The LM2904 is a dual package version of the commonly used LM741 Op-Amp, both of which have the same electrical characteristics. This Op-Amp does not have a latch-up problem and is therefore ideal for use in voltage follower applications. It also has built-in internal frequency compensation and short-circuit protection and therefore requires a minimum number of components to be ready for use. These ICs are commonly found inside DVD players and guitar amplifiers due to these characteristics. LM2904 IC consumes very low current. So if you're looking for an Op-amp IC with all of these features, this IC might be the right choice for you.LM2904 ApplicationMerchant network and server power supply unitsMulti-function printersPower supplies and mobile chargersMotor control: AC induction, brushed DC, brushless DC, high-voltage, low-voltage, permanent magnet, and stepper motorDesktop PC and motherboardIndoor and outdoor air conditionersWashers, dryers, and refrigeratorsAC inverters, string inverters, central inverters, and voltage frequency drivesUninterruptible power suppliesProgrammable logic controllersElectronic point-of-sale systemsLM2904 PackageLM2904 ManufacturerTexas Instruments Inc. (TI) is an American technology company that designs and manufactures semiconductors and various integrated circuits, which it sells to electronics designers and manufacturers globally. Its headquarters are in Dallas, Texas, United States. TI is one of the top ten semiconductor companies worldwide, based on sales volume. Texas Instruments's focus is on developing analog chips and embedded processors, which accounts for more than 80% of their revenue. TI also produces TI digital light processing (DLP) technology and education technology products including calculators, microcontrollers and multi-core processors. To date, TI has more than 43,000 patents worldwide.Component DadasheetLM2904 DatasheetFAQWhat is LM2904 IC?An amplifier that has high gain, two independent and frequency compensated inside is known as LM2904 IC. What is the operating voltage range of LM2904?Single power supply 3V -30V DC, Dual power supply positive and negative 1.5V-positive and negative 15V DC. What is LM2904 generally used for?It is generally used in operational amplifier circuits and can be used in single-supply operational amplifier circuits.
kynix On 2022-04-06   3090

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