The Kynix Components

Product OverviewThe xx555 timer is a popular and easy to use for general purpose timing applications from 10 µs to hours or from < 1mHz to 100 kHz. In the time-delay or mono-stable mode of operation, the timed interval is controlled by a single external resistor and capacitor network. In the a-stable mode of operation, the frequency and duty cycle can be controlled independently with two external resistors and a single external capacitor. Maximum output sink and discharge sink current is greater for higher VCC and less for lower VCC.CatalogNE555P PinoutNE555P CAD ModelsNE555P Product detailsNE55P FeaturesNE55P product descriptionNE55P ApplicationSimplified SchematicNE555P Product AttributesNE555P pin Functions in shortHow to use NE555P?Using WarningsNE555P vs NA555PNE555 ManufacturerComponent DatasheetNE555P Pinout The 555 timers are contained in a tiny 8 pin Dual-In-Line package look like a 741 op-amp or LM386 audio amplifier. Look at its pinout below. NE555P Pinout  NE555P CAD Models   NE555P CAD Models NE555P Product details NE55P ParametersIq (Typ) (uA)2000RatingCatalogOperating temperature range (C)0 to 70Supply voltage (Max) (V)16Supply voltage (Min) (V)4.5 Package | Pins | Size PDIP (P)893 mm² 9.81 x 9.43SOIC (D)819 mm² 3.91 x 4.9SOIC (D)819 mm² 4.9 x 3.9SOP (PS)848 mm² 6.2 x 7.8TSSOP (PW)819 mm² 3 x 6.4NE55P FeaturesTiming From Microseconds to HoursAstable or Monostable OperationAdjustable Duty CycleTTL-Compatible Output Can Sink or Source           Up to 200 mAOn Products Compliant to MIL-PRF-38535,        All Parameters Are Tested Unless Otherwise Noted. On All Other Products, Production Processing Does Not Necessarily Include        Testing of All Parameters. NE55P product description NE555P2D These devices are precision timing circuits capable of producing accurate time delays or oscillation. In the time-delay or mono-stable mode of operation, the timed interval is controlled by a single external resistor and capacitor network. In the a-stable mode of operation, the frequency and duty cycle can be controlled independently with two external resistors and a single external capacitor.The threshold and trigger levels normally are two-thirds and one-third, respectively, of VCC. These levels can be altered by use of the control-voltage terminal. When the trigger input falls below the trigger level, the flip-flop is set, and the output goes high. If the trigger input is above the trigger level and the threshold input is above the threshold level, the flip-flop is reset and the output is low. The reset (RESET) input can override all other inputs and can be used to initiate a new timing cycle. When RESET goes low, the flip-flop is reset, and the output goes low. When the output is low, a low-impedance path is provided between discharge (DISCH) and ground.The output circuit is capable of sinking or sourcing current up to 200 mA. Operation is specified for supplies of 5 V to 15 V. With a 5-V supply, output levels are compatible with TTL inputs. NE55P ApplicationFingerprint BiometricsIris BiometricsRFID ReaderPulse generationTime delay generationSequential timingPrecision timingPulse width modulationPulse position modulationLinear ramp generator  Simplified SchematicThe schematic can be simplified somewhat to a block diagram making the operation of the circuit slightly easier to understand. Simplified Schematic  NE555P Product Attributes Product AttributeAttribute ValueManufacturer:Texas InstrumentsProduct Category:Timers & Support ProductsSeries:NE555Type:StandardNumber of Internal Timers:1 TimerSupply Voltage - Max:16 VSupply Voltage - Min:4.5 VMinimum Operating Temperature:0 CMaximum Operating Temperature:+ 70 CMounting Style:Through HolePackage / Case:PDIP-8Packaging:TubeHeight:4.57 mmLength:9.81 mmWidth:6.35 mmBrand:Texas InstrumentsHigh Level Output Current:200 mALow Level Output Current:- 200 mAOperating Supply Current:2 mAProduct Type:Timers & Support ProductsFactory Pack Quantity:50Subcategory:Clock & Timer ICsUnit Weight:0.015535 oz  NE555P pin Functions in short NE555P pin Functions in short Pin 1-Ground. We connect it to the 0V rail.Pin 2-Trigger. It will detect the 1/3 of the supply voltage. It makes the output turns on. While the pin 2 LOW, this pin has a very high impedance (about 10M) and will trigger about 1uA.Pin 3 OUTPUT. If it is HIGH (about the supply voltage) and deliver up to 200mA. In contrast, LOW is about 0.5V above 0V.Pin 4 RESET. In normal connect HIGH to turn on IC. Maybe internally connected HIGH via 100K Resistor. It must be taken below 0.8v to reset the chip.Pin 5 CONTROL VOLTAGE. Normally we often see this pin connect to the ground via 0.01uF to 0.1uF capacitor. The capacitor to this pin removes external noise. Also, the voltage applied to this pin will vary the timing of the RC network (quite considerably). We can adjust frequency via an external pot.Pin 6 THRESHOLD. It detects 2/3 of the supply voltage to turn IC off, make output LOW only if pin 2 is HIGH. This pin has a very high impedance (about 10M) and will trigger about 1uA.Pin 7 DISCHARGE. It will go LOW when pin 6 detects 2/3 the supply voltage. But pin 2 must be HIGH. If pin 2 is “HIGH”, pin 6 can be HIGH or LOW. And pin 7 remains LOW. Then, the pin 7 will go OPEN (HIGH) and stays HIGH when pin 2 detects 1/3 supply voltage.Pin 8 +VCC. Connects to the positive rail supply. How to use NE555P?There are a lot of ways to use the 555 IC. We can use them in hundreds of different circuits to create many clever things. But they can all be put into three groups. In different types of oscillators: Astable Multivibrator – constantly oscillates        – For frequencies above 1 cycle per second, it is called an oscillator (multivibrator or square wave oscillator).        – For frequencies below 1 cycle per second.Monostable – changes state only once per trigger         pulse – also called a ONE-SHOT or It is called a TIMER or DELAY.Voltage Controlled Oscillator – called a VCO. Using WarningsNote: Please check their parameters and pin configuration before replacing them in your circuit. NE555P vs NA555P urce Content uidNE555PNA555PRohs Code Yes YesPart Life Cycle CodeActiveActiveIhs ManufacturerTEXAS INSTRUMENTS INCTEXAS INSTRUMENTS INCPart Package CodeDIPDIPPackage DescriptionDIP, DIP8,.3DIP, DIP8,.3Pin Count88Reach Compliance CodecompliantcompliantECCN CodeEAR99EAR99HTS Code8542.39.00.018542.39.00.01Factory Lead Time1 Week6 WeeksSamacsys DescriptionPrecision timer,NE555P 0.5MHz DIL8 Texas Instruments NE555P, Precision Timer, 4.5 → 16 V, 8-Pin PDIPxx555 Precision TimersSamacsys ManufacturerTexas InstrumentsTexas InstrumentsAdditional FeatureCAN ALSO OPERATE FROM A 15V NOMINAL SUPPLYCAN ALSO OPERATE FROM A 15V NOMINAL SUPPLYAnalog IC - Other TypePULSE; RECTANGULARPULSE; RECTANGULARJESD-30 CodeR-PDIP-T8R-PDIP-T8JESD-609 Codee3e3Length9.81 mm9.81 mmNumber of Functions11Number of Terminals88Operating Temperature-Max70 °C105 °COperating Temperature-Min -40 °CPackage Body MaterialPLASTIC/EPOXYPLASTIC/EPOXYPackage CodeDIPDIPPackage Equivalence CodeDIP8,.3DIP8,.3Package ShapeRECTANGULARRECTANGULARPackage StyleIN-LINEIN-LINEPeak Reflow Temperature (Cel)NOT SPECIFIEDNOT SPECIFIEDPower Supplies5/15 V5/15 VQualification StatusNot QualifiedNot QualifiedSeated Height-Max5.08 mm5.08 mmSupply Current-Max (Isup)15 mA15 mASupply Voltage-Max (Vsup)16 V16 VSupply Voltage-Min (Vsup)4.5 V4.5 VSupply Voltage-Nom (Vsup)5 V5 VSurface MountNONOTechnologyBIPOLARBIPOLARTemperature GradeCOMMERCIALINDUSTRIALTerminal FinishMatte Tin (Sn)Matte Tin (Sn)Terminal FormTHROUGH-HOLETHROUGH-HOLETerminal Pitch2.54 mm2.54 mmTerminal PositionDUALDUALTime@Peak Reflow Temperature-Max (s)NOT SPECIFIEDNOT SPECIFIEDWidth7.62 mm7.62 mmBase Number Matches161urce Content uidNE555PNA555PRohs Code Yes YesPart Life Cycle CodeActiveActiveIhs ManufacturerTEXAS INSTRUMENTS INCTEXAS INSTRUMENTS INCPart Package CodeDIPDIPPackage DescriptionDIP, DIP8,.3DIP, DIP8,.3NE555 ManufacturerTeaxs Instuments(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 DatasheetNE555P Datasheet

The 78L05 is a three terminal integrated regulator.Its excellent internal current limit and thermal shutdown characteristics make it particularly suitable for overload conditions. When used to replace the traditional Zener diode-resistor group, its output impedance is effectively improved, but the bias current is greatly reduced.78L05 is suitable for many applications. They can be combined with other power transfer devices to form a high-current regulated power supply, such as a voltage regulator that can drive an output current of up to 100 mA.Catalog78L05 Pinout78L05 Features78L05 Applications78L05 Advantage78L05 Equivalents78L05 AlternativeWhere to use 78L05How to test 78L05How to use 78L0578L05 PackageComponent Datasheet78L05 PinoutPin No.Pin NameDescription1Output (Vo)Outputs Regulated +5V2Ground (Gnd)Connected to Ground3Input (V+)Unregulated Input Voltage78L05 FeaturesOperating current(IQ) is 5mAInternal Thermal Overload and Short circuit current limiting protection is available.The maximum input voltage is 30 volts.TO-92, SO-8, and SOT-89 packages are available.Positive Voltage Regulator 5VMaximum output current is 100mA.Note: Complete Technical Details can be found at the 78L05 datasheet given at the end of this page.78L05 ApplicationsAdjustable Output RegulatorConstant +5V output regulator to power small loads of less than 100mAOutput Polarity-Reversal-Protection CircuitOutput booster circuitCurrent Limiter for certain applications78L05 Advantage78L05 Voltage Regulator78L05 is a fixed voltage (5V) three terminal integrated regulator, which can be applied to many applications. Its excellent internal current and thermal shutdown characteristics make it especially suitable for overload. When it is used to replace the traditional zener diode - resistance group, its output impedance is improved effectively, but the bias current is greatly reduced. In another words,78L05 series (like L78L05ACD013TR) is a fixed voltage (5V) three terminal integrated voltage regulator, which is suitable for many applications. Like a single point voltage regulator which needs to limit the noise and solve the distribution problem, it can also be used with other power transfer devices to form a stable voltage power supply with large current, such as a stable output current of up to 100 mA.78L05 EquivalentsLM7805, AMS711178L05 AlternativeLM317,LM7806, LM7809, LM7905, LM117V33, LM7812, LM7912, XC6206P332MR.Where to use 78L05Voltage regulators are frequently used in electronic circuits. They produce a constant output voltage in response to a variable input voltage. In our case, the 78L05 IC is a well-known regulator IC that is used in a wide range of projects. The name 78L05 has two meanings: "78" indicates that it is a positive voltage regulator, and "05" indicates that it outputs 5V. As a result, our 7805 will produce a +5V output voltage.This IC's output current can reach 100mA. However, the IC suffers from significant heat loss, so a heat sink is recommended for projects that require a higher current consumption. For example, if the input voltage is 12V and the current consumption is 50mA, (12-5) * (50*10-3) = 0.35W. This 0.35 Watts will be dissipated in the form of heat.Another popular voltage regulator is the 7805, which is larger but has a higher current rating of about 1A. So, if you're looking for a smaller package of a voltage regulator with a low current rating in a TO-92 package, this IC might be a good fit.How to test 78L05All you need to do is take the positive probe off the input pin and place it on the output pin. You can leave the negative probe on the ground pin. The amount of output voltage indicated should be 5 volts because of the “05” associated with 78L05.How to use 78L05The 78L05 is a voltage regulator with three terminals. As shown in the 78L05 pinout diagram, the three terminals are Input, Output, and Ground. It is very simple to use this IC; simply connect the input pin to the input voltage that needs to be regulated and the ground pin to system ground. The IC's output pin can be used to obtain regulated 5V.The 78L05 is used in the circuit below to regulate a 12V input voltage to 5V. You use the 5V to power any small loads that draw less than 100mA, such as LEDs. Because the maximum current that this IC can provide is only 100mA.It is also worth noting that the capacitors C1 and C2 are used at both the input and output ends. These capacitors filter any noise that is coupled with the input voltage. It is not necessary to use the exact value of the capacitor, but 10uF for C1 and 1uF for C2 would be a good starting point.These regulators can also limit current and protect when the temperature rises above the junction temperature. If you connect high current loads, you can expect the IC to get very hot and eventually shunt down. In this case, a high current regulator such as the 7805 would be an excellent choice.It can be used as a voltage regulator, a current regulator, a short-circuit protector, a booster circuit, and even a variable voltage regulator in addition to a voltage regulator. All of these circuits can be found on page 27/45 of the 78L05 datasheet, which is linked below.78L05 PackageComponent Datasheet78L05 Datasheet

CR2450 Lithium 3.0V battery is a non-rechargeable button/coin cell battery. In today's vlog, we'll have a detailed introduction to CR2450 lithium battery, after reading this blog, you will learn what is CR2450, what's its features, in which country it is the most popular, and what's its difference between CR2032, which one is more worth buying etc.CatalogCR2450 DescriptionCR2450 FeaturesCR2450 ParameterCR2450 vs CR2032CR2450 ApplicationCR2450 PopularityCR2450 PackageCR2450 ManufacturerComponent DatasheetFAQCR2450 DescriptionCR2450 is commonly used in watches, computer motherboards, medical devices, LED flashlights, toys, remote controls, remote car keys, security systems, wearable electronics, etc. Compared to smaller 3.0V lithium batteries, the CR2450 is a large and powerful battery with a large capacity and is often used in 'high' drain devices. The CR2450 battery has a diameter of 24 mm (~0.945 inches) and a height of 5.0 mm (~0.197 inches) and a weight range of 5.7-6.3+ grams (0.2-0.222+ ounces). The CR2450 battery has a negative electrode made of lithium and a positive electrode made of manganese-dioxide, so its label starts with 'CR.' The standard label for the 2450 manganese-dioxide positive electrode lithium battery is CR2450, although other labels are also used, such as 5029LC, DL2450, ECR2450, CR2450N, CR-2450, CR2450EL, CR-2450EL, CR-2450EL, etc.CR2450 FeaturesLightweight, High Voltage and High Energy DensityThe battery voltage is 3V, almost double that of normal alkaline or manganese batteries. This means that the number of batteries required for equipment can be halved for maximum space saving and weight reduction. Excellent Discharge CharacteristicsVoltage characteristics remain stable even for a long period of discharge, greatly improving the reliability of equipment that uses the battery. Such equipment is also maintenance-free (battery replacement is seldom required). Excellent Leakage ResistanceThe newly developed battery construction and electrolyte ensure maximum leakage resistance over a long span of time. Excellent Long-Term ReliabilityCarefully selected active materials are used for the active material as well as for the electrolyte. These materials are sealed by Murata's innovative technology to minimize battery self-discharge. The annual self-discharge rate at room temperature and normal humidity is less than 1% of the nominal capacity. UL Approved PartsMurata's Coin Manganese Dioxide Lithium Batteries are approved by UL. (UL1642 File No. MH12566) RoHS  Directive / European DirectivesThis product does not contain Mercury(Hg), Cadmium(Cd), nor Lead(Pb), and conforms to EC regulation values. (Directive 2006/66/EC, 2013/56/EU)Battery pack are excluded from RoHS directive (DIRECTIVE 2011/65/EU OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 8 June 2011 on the restriction of the use of certain hazardous substances in electrical and electronic equipment).CR2450 ParameterManufacturer:Murata ElectronicsSeries:-Part Status:ActiveBattery Chemistry:Lithium Manganese DioxideBattery Cell Size:Coin 24．5mmVoltage - Rated:3VCapacity:500mAhSize / Dimension:0．96" Dia x 0．20" H (24．5mm x 5．0mm)Termination Style:Requires HolderDischarge Rate:3mAShipping Info:Due to restrictions only ground shipment is allowed．Shelf Life:-Shelf Life Start:-Storage/Refrigeration Temperature:50°F ~ 77°F (10°C ~ 25°C)Base Part Number:CRCR2450 vs CR2032CR2032CR2450 is often compared to the very popular 3.0 volt CR2032 lithium battery. The output voltages of these batteries are the same for the same chemical types. However, due to the larger volume of CR2450, it has a larger capacity-600-620 mAh (CR2450) vs 210-230 mAh (CR2032). This, almost 3x larger capacity, is the reason why CR2450 is the preferred choice for some 'high' drain devices and not for CR2032 batteries. Note: some of the devices designed for CR2450 have a special battery holder that allows the user to power both CR2450 and CR2032, which is great for getting proper batteries, but with almost 3x smaller capacity,  one can expect to replace CR2032 batteries some 3x more often than CR2450 batteries. For short, if possible, go for CR2450 batteries, you won’t regret it.CR2450 ApplicationAutomotive・Smart Key/Keyless entry・Door sill stripIoT・Tracking devices・Sensors・SecurityMedical・ThermometersOthers・Home electrical appliances/Multi- functional printer・Electronic price tags, POS systemsCR2450 PopularityCR2450 PackageCR2450 ManufacturerMurata is a global leader in the design, manufacture and supply of advanced electronic materials, leading edge electronic components, and multi-functional, high-density modules. Murata innovations can be found in a wide range of applications from mobile phones to home appliances, and automotive applications to energy management systems and healthcare devices.Component DatasheetCR2450 DatasheetFAQIs CR2032 same as CR2450?The CR2450 battery relies on the same storage technology as the CR2032 type. Therefore the energy density is the same, but the CR2450 cell provides more capacity due to its larger size. The capacity also varies depending on the manufacturer and lies around 620 mAh.What battery can replace CR2450?CR2032, CR2430, Energizer 317, Energizer 357/303, Energizer 364/363...How long does a CR2450 battery last?10 years. The lithium coin CR2450 batteries still have 90% of their original capacity after 10 years. The reason for this is that they are chemically very stable, thanks to the combination of lithium and manganese dioxide.Is there a difference between CR2450 and CR2450N?There is a difference between a 2450N and a 2450. ... There is a difference between the CR2450N and the CR2450 so make sure you get the one that will fit your device. The Terrova remote needs the one with the N on it. The remote only needs one battery so I bought an extra one for a spare.How do you test a CR2450 battery? 

IntroductionThe LM311 is a single comparator. In other words, it is internally composed of one comparator.The LM311 compares these voltage inputs and determines which value is larger. On this basis, you can make electronic decisions based on which input is larger and which is smaller. Therefore, comparators are very useful in circuits where we measure the level and want our circuit to operate in a particular way, depending on whether the input level is above or below a certain threshold.LM311 Images are for reference only.LM311 - Differential Comparator ICCatalogIntroductionDocument and MediaLM311 Pin Configuration and FunctionsBasic ParametersFeaturesApplicationECCN UNSPSCPackage and PinsFunctional Block DiagramWhere to Use LM311 Product ManufacturerProduct RangeAlternative ModelsFAQOrdering & QuantityDocument and MediaComponent Datasheets      LM111,211,311LM311 Pin Configuration and FunctionsLet's take a closer look at the 8 pins of the LM311 comparator IC to understand what each pin means and what each pin does.Pin Configuration Pin FunctionBasic ParametersAmplifier TypeCOMPARATORApprox. price (US$)1ku | 0.06Average Bias Current-Max (IIB)0.25 µABrand NameTexas InstrumentsECCN CodeEAR99Factory Lead Time1 WeekFeaturesStrobe, Vos Adj PinHTS Code8542.39.00.01Input Bias Current (+/-) (Max)250 nAInput Offset Voltage-Max10000 µVJESD-30 CodeR-PDSO-G8JESD-609 Codee4Length4.9 mmManufacturerTexas InstrumentsManufacturer Part NumberLM311DMoisture Sensitivity Level1Neg Supply Voltage Limit-Max-18 VNeg Supply Voltage-Nom-15 VNumber of Channels1Number of Functions1Number of Terminals8Operating Temperature-Max70 °COutput TypeOPEN-COLLECTOR/OPEN-EMITTERPackage Body MaterialPLASTIC/EPOXYPackage DescriptionSOP, SOP8,.25Package ShapeRECTANGULARPackage StyleSMALL OUTLINEPacking MethodTUBEPart Life Cycle CodeActivePart Package CodeSOICPbfree CodeYesPeak Reflow Temperature260 ℃Pin Count8Power Supplies+-15 VPropagation Delay Time0.115 µsQualification StatusNot QualifiedRail to RailNoRatingCatalogReach Compliance CodeCompliantResponse Time-Nom115 nsRisk Rank0.66Rohs CodeYesSeated Height-Max1.75 mmSubcategoryComparatorSupply Current-Max7.5 mASupply Voltage Limit-Max18 VSupply Voltage-Nom15 VSurface MountYESTechnologyBIPOLARTemperature GradeCOMMERCIALTerminal FinishNickel/Palladium/Gold (Ni/Pd/Au)Terminal FormGULL WINGTerminal Pitch1.27 mmTerminal PositionDUALTime@Peak Reflow Temperature-MaxNOT SPECIFIEDVICR (Max)28 VVICR (Min)0.5 VVos (offset voltage @ 25 C) (Max)7.5 mVVs (Max)30 VVs (Min)3.5 VWidth3.9 mmFeaturesFast  Response Time: 165 nsStrobe CapabilityMaximum Input Bias Current: 300 nAMaximum Input Offset Current: 70 nACan Operate From Single 5-V SupplyAvailable in Q-Temp Automotive– High-Reliability Automotive Applications– Configuration Control and Print Support– Qualification to Automotive StandardsOn Products Compliant to  MIL-PRF-38535, All Parameters Are Tested Unless Otherwise Noted. On All Other Products, Production Processing Does Not Necessarily Include Testing of All Parameters.ApplicationA typical LM311 application compares a single signal to a reference or two signals against each other. Many users take advantage of the open-drain output to drive the comparison logic output to a logic voltage level to an MCU or logic device. The wide supply range and high voltage capability make LM311 optimal for level shifting to a higher or lower voltage.The common applications of LM311 are mainly as follows:Desktop PCsBuilding AutomationBody Control ModulesOscillatorsWhite GoodsPeak DetectorsECCN UNSPSCDescriptionValueECCN CodeEAR99HTS Code8542.39.00.01Package and PinsPakagePinsSizePDIP (P)893 mm²  9.81 x 9.43SOIC (D)819 mm²  3.91 x 4.9SOIC (D)819 mm²  4.9 x 3.9SOP (PS)848 mm²  6.2 x 7.8TSSOP (PW)819 mm²  3 x 6.4Functional Block DiagramWhere to Use LM311 The lm311 differential comparison operational amplifier is a very old Ti comparison IC that has been used in voltage comparison with electronic design for a long time. Any operational amplifier can be used as a voltage comparator.  But lm311 proves its advantage by placing an output transistor in its package. The collector and emitter pins of the transistor can also be controlled by hardware, which makes it suitable for many applications.The transistor can drive loads up to 50V and 50mA and is suitable for driving most TTL,  MOS, and RTL loads. Transistors also insulate the load from the system ground, so if you are looking for a voltage comparator to drive these specifications of the load, the IC may be the right choice for you.Product 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.Product RangeDevicesBoardsDeveloper ToolsARM ® PROCESSORSAUTOMOTIVE PRODUCTSIDENTIFICATION & SECURITYKinetis Cortex®-M MicrocontrollersIn-Vehicle NetworkNFCLPC Cortex-M MicrocontrollersMicrocontrollers and ProcessorsRFIDAlternative Models901523-04，CA211，CA311，CA311S，CA311T，ECG922，LM211H，LM311，LM311H，LM311T，MLM111AG，MLM211AG，NTE922，SK3567，SK3567A，TCG922， UA311HCFAQWhat is the LM311?Single comparatorWhat makes LM311 optimal for level shifting to a higher or lower voltage?Wide supply range and high voltage capabilityHow to use LM311?LM311 is a single-channel comparator. When using it, connect the reference voltage and the compared signal voltage to its non-inverting and inverting input terminals (pin 2 and pin 3), and its output is the result of the comparison. If you want the foward output result, pin 7 is connected to the positive power supply and pin 1 is the output. If the result is to be output in reverse, pin 1 is grounded and pin 7 is the open collector output.lm311 and lm393 are both voltage comparators, so what is the difference between them?LM311 is single voltage comparaotor, LM393 is dual voltage copatpr. LM311 has a load current of up to 50MA and a voltage of 40V. It can drive relays with a minimum power supply voltage of 5V.The LM393 load current is 16MA, and the minimum voltage is 2V for a single power supply.What’s the difference between LM311 and LM111?Their functions are the same, and the 1XX series can be used in harsher environments.The 3XX series can only be used in a commercial environment, typically the applicable temperature range of the device.The price of 1xx is much more expensive than 3xx.What does the 5 and 6-pin balance strobes of LM311 mean?The function of balancing the mirror current of the reverse circuit is realized by connecting a potentiometer in the middle. In addition to the balance function, the 6 pin also has a strobe function, and the 6 pin can be grounded through the transistor drive circuit for strobe output.What is the difference between lm311 voltage comparator dual power supply and single power supply?The comparators are all open-collector outputs, without load resistance, they cannot output voltage signals.Dual power supplies can detect signals lower than 0, and single power supplies can only detect signals higher than 0.Can the lm311 comparator be powered by a positive and negative five-volt dual power supply?Of course, LM311 can be powered by ±5V dual power supply. Its requirement for working power supply is that the voltage difference between the positive and negative power supply (or single power supply voltage) is at least 3.5V and the maximum is 30V, as long as it is within this range.

MLX90614 is a Contactless Infrared (IR) Digital Temperature Sensor that can be used to measure the temperature of a specific object ranging from-70°C to 382.2°C. The sensor uses IR rays to measure the temperature of the object without any physical contact and communicates with the microcontroller using the I2C protocol.Using Melexis MLX90614 Non-Contact Infrared Thermometer with ArduinoCatalogMLX90614 General DescriptionMLX90614 PinoutMLX90614 Block DiagramMLX90614 SpecificationsMLX90614 FeaturesMLX90614 AlternativesWhere to Use MLX90614 Temperature SensorMLX90614 Working PrincipleHow to Use MLX90614 Temperature SensorMLX90614 ApplicationsMLX90614 PackageComponent DatasheetFAQMLX90614 General DescriptionThe MLX90614 is built from 2 chips developed and manufactured by Melexis:The Infra Red thermopile detector MLX81101.The signal conditioning ASSP MLX90302, specially designed to process the output of IR sensor.The device is available in an industry standard TO-39 package.Thanks to the low noise amplifier, high resolution 17-bit ADC and powerful DSP unit of MLX90302 high accuracy and resolution of the thermometer is achieved. The calculated object and ambient temperatures are available in RAM of MLX90302 with resolution of 0.01˚C. They are accessible by 2 wire serial SMBus compatible protocol (0.02°C resolution) or via 10-bit PWM (Pulse Width Modulated) output of the device. The MLX90614 is factory calibrated in wide temperature ranges: -40 to 125 ˚C for the ambient temperature and -70 to 382.2 ˚C for the object temperature. The 10-bit PWM is as a standard configured to transmit continuously the measured object temperature for an object temperature range of -20 to 120 ˚C with an output resolution of 0.14 ˚C. The PWM can be easily customized for virtually any range desired by customer by changing the content of 2 EEPROM cells. This has no effect on the factory calibration of the device.MLX90614 Pinout Pin NameFunctionVSSGround. The metal can is also connected to this pinSCL/VzSerial clock input for 2 wire communications protocol. 5.7V zeneris available at this pin for connection of external bipolar transistorto MLX90614A to supply the device from external 8 -16V source.PWM/SDADigital input / output. In normal mode the measured objecttemperature is available at this pin Pulse Width Modulated.VDDExternal supply voltage.MLX90614 Block DiagramMLX90614 Block DiagramMLX90614 SpecificationsOperating Voltage: 3.6V to 5V (available in 3V and 5V version)Supply Current: 1.5mAObject Temperature Range: -70° C to 382.2°CAmbient Temperature Range: -40° C to 125°CAccuracy: 0.02°CField of View: 80°Distance between object and sensor: 2cm-5cm (approx.)MLX90614 FeaturesSmall size, low costEasy to integrateFactory calibrated in wide temperature range: -40 to 125 ˚C for sensor temperature and -70 to 380 ˚C for object temperatureHigh accuracy of 0.5°C over wide temperature range (0..+50°C for both Ta and ToHigh (medical) accuracy calibration optionalMeasurement resolution of 0.02°CSingle and dual zone versionsSMBus compatible digital interfaceCustomizable PWM output for continuous readingAvailable in 3V and 5V versionsSimple adaptation for 8 to 16V applicationsPower saving modeDifferent package options for applications and measurements versatility Automotive gradeMLX90614 AlternativesAlternative for MLX90614: MLX90615, ZTP115, TPIS 1SAlternate Ambient Temperature Sensors: DHT11, DHT22, PT100, TMP36, DS18B20Where to Use MLX90614 Temperature SensorThe key feature of the MLX90614 is that it is a high-precision, contactless IR temperature sensor. It can therefore be used in industries to measure the temperature of moving objects, such as a rotating motor shaft. Due to its high accuracy and precision, it is also used in a wide range of commercial, health and household applications such as room temperature monitoring, body temperature measurement, etc.MLX90614 Working PrincipleAs mentioned above, the MLX90614 sensor can measure the temperature of an object without any physical contact with it. This is made possible by a law called the Stefan-Boltzmann Law, which states that all objects and living beings emit IR Energy and that the intensity of that emitted IR energy is directly proportional to the temperature of that object or living being. The MLX90614 sensor therefore calculates the temperature of the object by measuring the amount of IR energy emitted from it.How to Use MLX90614 Temperature SensorThe temperature sensor MLX90614 is manufactured by a company called Melexis. The sensor is factory calibrated and therefore acts as a plug and play sensor module to speed up the development process. The MLX90614 consists of two devices integrated as a single sensor, one of which acts as a sensing unit and the other as a processing unit. The sensing unit and the Infrared Thermopile Detector called MLX81101 which senses the temperature and the processing unit is a single conditioning ASSP called MLX90302 which converts the signal from the sensor to the digital value and communicates using the I2C protocol. The MLX90302 has a low-noise amplifier, 17-bit ADC and a powerful DSP that helps the sensor achieve high accuracy and resolution.The sensor does not require any external components and can be directly interfaced with a microcontroller such as Arduino. As you can see above the power pins (Vdd and Gnd) can be used directly to power the sensor, typically 5V can be used, but there are other versions of this sensor that can operate on 3.3V and 7V as well. The C1 capacitor is optional and is used to filter noise and provide optimum EMC capability. Signal pins (SCL and SDA) for use in I2C communication and can be connected directly to a 5V logic microcontroller. The sensor is also sold as a module, as you can see in the image pinout. But the sensor module is very similar to the sensor itself and has no additional components other than the sensor itself.MLX90614 ApplicationsHigh precision non-contact temperature measurementsThermal Comfort sensor for Mobile Air Conditioning control systemTemperature sensing element for residential, commercial and industrial building air conditioningWindshield defoggingAutomotive blind angle detectionIndustrial temperature control of moving partsTemperature control in printers and copiersHome appliances with temperature controlHealthcareLivestock monitoringMovement detectionMultiple zone temperature control – up to 100 sensors can be read via common 2 wiresThermal relay/alertBody temperature measurementMLX90614 PackageComponent DatasheetMLX90614 DatasheetFAQWhat is mlx90614?The MLX90614 is an infrared thermometer for non-contact temperature measurements. ... As a standard, the 10-bit PWM is configured to continuously transmit the measured temperature in range of -20 to 120°C, with an output resolution of 0.14°C.How do I use mlx90614?Arduino Wiring.Connect GND to common power/data ground.Connect PWR to the power supply, for the 3V sensor this is about 3.3V. For the 5V version, use about 5VDC.Connect the SDA pin to the I2C data SDA pin on your Arduino. ...Connect the SCL pin to the I2C clock SCL pin on your Arduino.How do IR temperature sensors work?These sensors work by focusing the infrared energy emitted by an object onto one or more photodetectors. ... Because the emitted infrared energy of any object is proportional to its temperature, the electrical signal provides an accurate reading of the temperature of the object that it is pointed at.How do I make a contactless temperature sensor?To make your IR thermometer, you will need:MLX90614 IR contactless thermometer.Arduino UNO board.2 x Resistors by 4.7 k.1 x Capacitor by 0.1 uF(100 nF)A breadboard and 9 jumpers. 

This is an introduction article to the collection of LM2576 and its similar models.CatalogLM2576 vs LM2596LM2576 vs LM2575LM2576 vs LM2577LM2576 vs LM7805LM2576 vs LM2676FAQLM2576 vs LM2596 LM2576 and LM2596 datasheet:LM2576 DatasheetLM2576xx Series SIMPLE SWITCHER 3-A Step-Down Voltage Regulator datasheet (Rev. E)LM2596 DatasheetLM2596 SIMPLE SWITCHER® Power Converter 150-kHz 3-A Step-Down Voltage Regulator datasheet (Rev. E) LM2576 FeaturesNew product available: LMR33630 36-V, 3-A, 400- kHz synchronous converter3.3-V, 5-V, 12-V, 15-V, and adjustable output versionsAdjustable version output voltage range: 1.23 V to 37 V (57 V for HV version) ±4% maximum over line and load conditionsSpecified 3-A output currentWide input voltage range: 40 V Up to 60 V for HV versionRequires only four external components52-kHz Fixed-frequency internal oscillatorTTL-shutdown capability, low-power standby modeHigh efficiencyUses readily available standard inductorsThermal shutdown and current limit protectionCreate a Custom Design with WEBENCH ToolsLM2596 Features3.3-V, 5-V, 12-V, and adjustable output versionsAdjustable version output voltage range: 1.2-V to37-V ±4% maximum over line and load conditionsAvailable in TO-220 and TO-263 packages3-A output load currentInput voltage range up to 40 VRequires only four external componentsExcellent line and load regulation specifications150-kHz Fixed-frequency internal oscillatorTTL shutdown capabilityLow power standby mode, IQ, typically 80 μAHigh efficiencyUses readily available standard inductorsThermal shutdown and current-limit protectionCreate a custom design using the LM2596 withthe WEBENCH Power DesignerLM2576 Basics:The LM2576 series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving 3-A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3 V, 5V, 12V, 15V, and an adjustable output version.LM2596 Basics:The LM2596 series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving a 3-A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3 V, 5V, 12V, and an adjustable output version. If you keep looking on the datasheet, you will find the main difference between them seems to be:The LM2596 series operates at a switching frequency of 150 kHz, thus allowing smaller sized filter components than what would be required with lower frequency switching regulators.This is as opposed to the 52-kHz Fixed-Frequency Internal Oscillator of the LM2576. The higher internal frequency allows the use of a smaller inductor and capacitor on the output reduces the size and weight of your passives.The newer also LM2596 also have a low power idle mode.However, the LM2576 has a variant available for higher input voltages.LM2576 vs LM2575LM2576 and LM2575 datasheet:LM2576 DatasheetLM2576xx Series SIMPLE SWITCHER 3-A Step-Down Voltage Regulator datasheet (Rev. E)LM2575 DatasheetLM2575 1-A Simple Step-Down Switching Voltage Regulator datasheet (Rev. F) LM2576 FeaturesNew product available: LMR33630 36-V, 3-A, 400- kHz synchronous converter3.3-V, 5-V, 12-V, 15-V, and adjustable output versionsAdjustable version output voltage range: 1.23 V to 37 V (57 V for HV version) ±4% maximum over line and load conditionsSpecified 3-A output currentWide input voltage range: 40 V Up to 60 V for HV versionRequires only four external components52-kHz Fixed-frequency internal oscillatorTTL-shutdown capability, low-power standby modeHigh efficiencyUses readily available standard inductorsThermal shutdown and current limit protectionCreate a Custom Design with WEBENCH ToolsLM2575 FeaturesAdjustable With a Range of 1.23V to 37V andt4% Regulation (Max) Over Line, Load, andTemperature ConditionsSpecified 1-A Output CurrentWide Input Voltage Range 4.75V to 40VUses Readily Available Standard Inductors52-kHz (Typical) Fixed-Frequency InternalOscillatorTTL Shutdown Capability With 50-pA (Typical)Standby CurrentHigh Efficiency...as High as 88% (Typical)Thermal Shutdown and Current-Limit ProtectionWith Cycle- by-Cycle Current LimitingFor the Full Offering of Voltages (Including Fixed-Output Options) and Packages (Including TO-263), See TL2575 Data Sheet, SLVS638 LM2576 & LM2575 BasicsThe LM2575/6 series switching regulators are monolithicintegrated circuits designed for use in "buck" or "buck/boost" regulator applications requiring accurate outputvoltages over combined variations of line, load andtemperature. This unique series greatly simplifiesswitching power supply design. The LM2575 has amaximum output current of 1A and the LM2576 is ratedfor 3A. The LM2575/6 series miniconverters include aswitching regulator and compensation network all withinthe same package. Just add a choke, catch diode andtwo capacitors to obtain an efficient DC-to-DC converter.The current limit and thermal shutdown features of theLM2575/6 series fully protect the device againstoverstress conditions. The LM2575/6 series offers an alternative to popular 3terminal linear regulators by providing higher efficiencywith reduced heatsink size. In many applications a heatsink will not be required.LM2576 vs LM2577LM2576 and LM2577 Datasheet:LM2576 DatasheetLM2576xx Series SIMPLE SWITCHER 3-A Step-Down Voltage Regulator datasheet (Rev. E)LM2577 DatasheetLM1577/LM2577 SIMPLE SWITCHER Step-Up Voltage Regulator datasheet (Rev. D)LM2576 FeaturesNew product available: LMR33630 36-V, 3-A, 400- kHz synchronous converter3.3-V, 5-V, 12-V, 15-V, and adjustable output versionsAdjustable version output voltage range: 1.23 V to 37 V (57 V for HV version) ±4% maximum over line and load conditionsSpecified 3-A output currentWide input voltage range: 40 V Up to 60 V for HV versionRequires only four external components52-kHz Fixed-frequency internal oscillatorTTL-shutdown capability, low-power standby modeHigh efficiencyUses readily available standard inductorsThermal shutdown and current limit protectionCreate a Custom Design with WEBENCH ToolsLM2577 FeaturesRequires Few External ComponentsNPN Output Switches 3.0A, can Stand off 65V· Wide Input Voltage Range: 3.5V to 40VCurrent-mode Operation for ImprovedTransient Response, Line Regulation, andCurrent Limit52 kHz Internal OscillatorSoft-start Function Reduces In-rush CurrentDuring Start-upOutput Switch Protected by Current Limit,Under-voltage Lockout, andThermalShutdownLM2576 & LM2577 Basics:The LM2576 includes a switch, voltage reference and feedback path for use in either the buck or the negative boost circuits. It has a capacity of 3A, and a maximum supply voltage of 40V, or 60V in the high-voltage LM2576HV version. Feedback resistors may be included for output voltages of 3.3, 5.0, 12 or 15V. The -ADJ version uses external feedback resistors and can be adjusted to any output voltage. The switch saturation voltage is typically 1.4V and is responsible for most of the power dissipation. A heat sink may be required, but the thermal dissipation is internally limited. The input voltage should be 12 V or more. The quiescent current is typically 5mA, or 50μA in standby (on/off high). The LM2577 is similar to the LM2576, but is used in the boost circuit, where it switches the input to ground. One application is producing +12 V from a +5V supply. It has an RC compensation network that is not necessary with the LM2576. It will work down to 3.5V input voltage (unlike the LM2576), and the switch can stand 65V. Like the LM2576, its oscillator frequency is nominally 52 kHz, and the switch transistor can carry 3A. A large output capacitor is necessary for loop stability. Note that Vin, pin 5, powers the chip, while Switch, pin 4, is the input to the switch.LM2576 vs LM7805LM2576 and LM7805 Datasheet:LM2576 DatasheetLM2576xx Series SIMPLE SWITCHER 3-A Step-Down Voltage Regulator datasheet (Rev. E)LM7805 DatasheetLM340, LM340A and LM7805 Family Wide VIN 1.5-A Fixed Voltage Regulators datasheet (Rev. L) LM2576 FeaturesNew product available: LMR33630 36-V, 3-A, 400- kHz synchronous converter3.3-V, 5-V, 12-V, 15-V, and adjustable output versionsAdjustable version output voltage range: 1.23 V to 37 V (57 V for HV version) ±4% maximum over line and load conditionsSpecified 3-A output currentWide input voltage range: 40 V Up to 60 V for HV versionRequires only four external components52-kHz Fixed-frequency internal oscillatorTTL-shutdown capability, low-power standby modeHigh efficiencyUses readily available standard inductorsThermal shutdown and current limit protectionCreate a Custom Design with WEBENCH ToolsLM7805 FeaturesOutput Current up to 1.5 AAvailable in Fixed 5-V, 12-V, and 15-V OptionsInternal Thermal Overload, Short-Circuit and SOA ProtectionAvailable in Space-Saving SOT-223 PackageOutput Capacitance Not Required for Stability LM2576 & LM7805 Basics:Before 3.3V components became popular, we were limited to 5V powered microcontrollers (MCUs) and integrated circuits (ICs). LM7805 was a popular part number back then, as it was a simple 5V linear voltage regulator. In fact, its simplicity is quite elegant, making it still a popular choice today. When 3.3V became a mainstream operating voltage, LM1117-33 served as a fairly efficient linear voltage regulator. Many people made a rookie mistake when dealing with the linear voltage regulator and accepted the current rating as absolute. This was a major problem because the LM7805 voltage regulator is specified as a 5V, 1.5A. But that doesn’t mean the linear regulator can handle this voltage without wearing down at best, or burning up in the process. At least three more parameters must be considered before selecting a linear voltage regulator.    The dissipated power level is calculated by considering the difference between the input and output voltage; then you multiply this figure with the load current. If you’re regulating 12V to 5V, and your embedded system consumes 100mA, then the dissipated power will be 0.7W. With this in mind, we should note that the LM7805 linear regulator can operate at temperatures up to 125°C. Beyond this point, you’ll begin to see undesirable events such as melting and burning. But a typical LM7805 in a TO-220 package has a temperature resistance of 65°C/W. This means that for every 1W, you will see an increase of 65°C on top of the environment’s ambient temperature. In some regions, temperatures average around 35°C, so the LM7805 would be running at 100°C—slightly short of its allowed maximum temperature, yet you have less than 10% of the rated maximum current of 1.5A. The LM2576, a popular switching regulator that runs at 75% efficiency when regulating at 3.3V. This produces a fraction of the heat that you might see from a comparable linear regulator, making it ideal for applications that need to regulate from a high voltage to a low one. It’s also suitable for embedded systems where you’re routinely running at a high capacity.LM2576 vs LM2676LM2576 and LM2676 Datasheet:LM2576 DatasheetLM2576xx Series SIMPLE SWITCHER 3-A Step-Down Voltage Regulator datasheet (Rev. E)LM2676 DatasheetLM2676 SIMPLE SWITCHER® High Efficiency 3-A Step-Down Voltage Regulator datasheet (Rev. L) LM2576 FeaturesNew product available: LMR33630 36-V, 3-A, 400- kHz synchronous converter3.3-V, 5-V, 12-V, 15-V, and adjustable output versionsAdjustable version output voltage range: 1.23 V to 37 V (57 V for HV version) ±4% maximum over line and load conditionsSpecified 3-A output currentWide input voltage range: 40 V Up to 60 V for HV versionRequires only four external components52-kHz Fixed-frequency internal oscillatorTTL-shutdown capability, low-power standby modeHigh efficiencyUses readily available standard inductorsThermal shutdown and current limit protectionCreate a Custom Design with WEBENCH ToolsLM2676 FeaturesNew product available: LMR33630 36-V, 3-A, 400-kHz synchronous converterEfficiency up to 94%Simple and easy to design with (using off-the-shelf external components)150-mΩ DMOS output switch3.3-V, 5-V, 12-V Fixed output and adjustable (1.2 V to 37 V) versions50-µA Standby current when switched OFF±2% Maximum output tolerance over full line and load conditionsWide input voltage range: 8 V to 40 V260-KHz Fixed frequency internal oscillator–40 to 125°C Operating junction temperature range LM2576 & LM2676 Basics:The LM2576 series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving 3-A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3V, 5V, 12V, 15V, and an adjustable output version. The LM2676 series of regulators are monolithic integrated circuits which provide all of the active functions for a step-down (buck) switching regulator capable of driving up to 3-A loads with excellent line and load regulation characteristics. High efficiency (>90%) is obtained through the use of a low ONresistance DMOS power switch. The series consists of fixed output voltages of 3.3-V, 5-V, and 12-V and an adjustable output version.FAQWhere is LM2576 used?LM2576 is usually used as a voltage stabilizing device when the input and output voltage difference is large and the output current is also large. Because it is a switching regulator, it has a higher conversion efficiency and low heat generation than a linear regulator.What’s the difference between LM2576T-ADJ and LM2576S-ADJ?LM2576T-ADJ is the package of TO-220, LM2576S-ADJ is the package of TO-263-5, there is no difference in their functions.What is the difference between LM2940 and LM2576? Which circuit are they applicable to?LM2940 is a low-dropout linear stabilized integrated circuit. The linear stabilized power supply is characterized by a relatively simple circuit, high precision, and small ripple coefficient. It is suitable for precision power supplies with high voltage requirements. The disadvantage is that the efficiency is very low and the output The current is relatively small (relative to the switching power supply)LM2576 is a switching power supply integrated circuit. Switching power supply, the circuit is more complicated, but the output current is large, the efficiency is high, the disadvantage is that the accuracy is lower and the ripple coefficient is larger.Why do switching power supply chips LM2576 and LM2596 have diodes, inductors and capacitors behind the output pins?The function of the diode and the inductance is that the output current can be continuous when the LM25XX is in the off state, and the function of the capacitor is to prevent the output voltage from sudden changes when the LM25XX is turned on and off. In fact, it is filtering.Why the higher the switching frequency of LM2576 and LM2596, the smaller the output inductance and capacitance value?Quite simply, the capacitive reactance of a capacitor decreases as the frequency increases, and the inductance of an inductor increases as the frequency increases. That is to say, the effect of using an inductance of 33uH in the case of 150Khz is basically the same as the effect of using an inductance of 100uH in the case of 52khz, and the principle of capacitance is the same. LM2596 is an upgraded version of LM2576. But LM2576 also has the advantage of less switching loss and less interference.