March 24,2023

LM3915: Resistors, Pinout, Features

LM3915 Description

The monolithic integrated circuit LM3915 senses analog voltage levels and powers ten vacuum fluorescent, LCD, or LED displays to provide a logarithmic, 3-dB-per-step, analog display. The display switches from a bar graph to a moving dot display with the push of a pin. Current limiting resistors are not required because the LED current drive is regulated and programmable. A single supply as little as 3V or as high as 25V can power the entire display system.

LM3915 Features

Expandable to 90 dB displays
Internal Voltage Reference: 1.2 to 12 volts
Uses a single supply from 3 to 25 volts to operate
Inputs Work Below Ground
Programmable output current of 1 to 30 mA
Withstands 35V without Damage or Fake Outputs
Outputs are Open Collectors, Current Regulated
Drives TTL or CMOS directly

LM3915 Pinout

Pinout

LM3915 CAD Model

Symbol

Footprint

3D Model

LM3915 Typical Application Circuit

Typical Application Circuit

LM3915 Package

Package

LM3915 Manufacturer

Texas Instruments (TI) emerges as a globally recognized semiconductor manufacturer expanded into 35 countries. It has seen a rapid growth. In 1958, TIer firstly introduced the working integrated circuit. And today more than 30,000 TIers worldwide are committed to designing, manufacturing, and selling analog and embedded processing chips. They aspire to solve challenges as well as change the world through their technologies.

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Technical
- Additional FeatureFeature refers to the distinctive attributes and aspects of electronic components. Additional feature means other features belonging to them.SELECTABLE DOT MODE
- Base Part NumberBase part number is an identifier of a particular part design or material used in a particular applications.LM3915
- Brand NameTexas
- ConfigurationConfiguration of electronic components refers to the composition or arrangement of them.Dot/Bar Display
- Current - SupplyIn electromagnetism, the amount of electricity passing through any cross section of a conductor per unit time is called current intensity, or current for short. An electric current is formed by the regular directional motion of free charges in conductors under the action of electric field forces.6.1mA
- Data Input ModeModel Input refers to data that is sent to a Model either electronically or manually, such as data from a servicer, data from financial services information providers, cash adjustments, and data from intermediate computation programs.ANALOG
- Digits or CharactersAn on-board LCD display Controller Driver is included with character and graphic displays.10 Steps
- Display ModeThe display is able to receive signals from computers and transform them into an image. It functions as a TV receiver. Certain computer screens feature display panels made of liquid crystal.BAR GRAPH
- Display TypeDisplay Type refers to the way in which certain electronics are displayed.LED, LCD, Vacuum Fluorescent (VF)
- ECCN CodeECCN code is used to show the level of export control based on the type and performance of high-tech products and technologies (especially integrated circuits).EAR99
- HTS CodeCustoms requires all products to be classified to determine the tariffs applicable to the products. Each export product has a corresponding verifiable classification number, which is the so-called HTS code. 8542.39.00.01
- InterfaceInterface is used to connect one electronic device with another to design or adapt the output and input configurations, thus making them work together.--
- Interface IC TypeIntegrated circuit interfaces (IC interfaces) are semiconductor chips that govern and manage data exchange between devices.LED DISPLAY DRIVER
- JESD-30 CodeJESD-30 is defined as a standard for semiconductor-device packages.R-PDIP-T18
- JESD-609 CodeJESD-609 requires that the surface or terminal finish or material must be marked under space permission, otherwise, alternating marking should be provided. The marking way can be the forma of barcode or 2D.e0
- Max Input VoltageInput voltage for a device or circuit is the voltage that is supplied to or sent by the external world to the device or circuit. It is the voltage that is supplied and applied to the external world by the circuit or device.25V
- Max Output VoltageOutput voltage refers to the maximal value of output for the component. Also, the output voltage is the voltage of the current direction of output of the electronic device. The term"output voltage" was used due to the fact that it is the case that the voltages of the output and input for each device are not the same. There is a drop in pressure within the process.1.34V
- Max Power DissipationMaximum power dissipation indicates the maximum capability of an electronic component to transfer and conduct this power loss while not causing overheating. It is measured in Watts.1.365W
- Max Supply CurrentIn electromagnetism, the amount of electricity passing through any cross section of a conductor per unit time is called current intensity, or current for short. An electric current is formed by the regular directional motion of free charges in conductors under the action of electric field forces.9.2mA
- MfrTexas Instruments
- Min Input VoltageInput voltage for a device or circuit is the voltage that is supplied to or sent by the external world to the device or circuit. It is the voltage that is supplied and applied to the external world by the circuit or device.3V
- Moisture Sensitivity Level (MSL)Moisture sensitivity level (MSL) was proposed to provide a classification standard for the packaging of human-sensitive SMD component.1 (Unlimited)
- Multiplexed Display CapabilityThe display is able to receive signals from computers and transform them into an image. It functions as a TV receiver. Certain computer screens feature display panels made of liquid crystal.NO
- Nominal Supply CurrentThe term "nominal supply current" refers to the maximum current that can be used until the specified end in the surge protector.9.2mA
- Number of CircuitsThe conductive loop composed of metal wires and electrical and electronic components is called a circuit.1
- Number of Digits/CharactersNumbers are a symbol. Different numeration systems can utilize exactly the same numeral.10-DIGIT
- Number of FunctionsFunction of electronic components means the roles of them play in various applications.1
- Number of OutputsAn output of electronic components is used to reproduce or display the processing results of information which is sent by an input device. 10
- Number of SegmentsA line segment is a part of a line that is bounded by two distinct end points, and contains every point on the line that is between its endpoints.10
- Number of TerminationsIn electronics, termination refers to the action to end a transmission line, thus preventing the signals from being reflected from the end of the line.18
- Operating Supply CurrentOperating supply current is defined as the current consumed by the device itself (when not driving any load)6.1mA
- Operating TemperatureAn operating temperature is a specified temperature range which ensures the efficient operation of an electric or mechanical device. It varies according to different devices.0°C~70°C
- Output CurrentIn electromagnetism, the amount of electricity passing through any cross section of a conductor per unit time is called current intensity, or current for short. An electric current is formed by the regular directional motion of free charges in conductors under the action of electric field forces.30mA
- Output VoltageOutput voltage is the maximum voltage output by the electronic component. In other words, the so-called output voltage refers to the voltage value in the direction of the output current of the electronic device.1.28V
- PackagingPackaging refers to the bulk specification of products when they are distributed, stored, or used.Tube
- Part StatusPart status indicates the different status of different products for use. Obsolete
- Pbfree CodePbfree code is used for electrical and electronic devices in which the lead (Pb) level is reduced to a level below 1000ppm (<0.1%). This requirement is conducive to environmental protection.no
- Peak Reflow Temperature (Cel)The highest temperature that all SMD electronic components can withstand during reflow soldering. Unless, the electronic components will be damaged.NOT SPECIFIED
- Pin CountPins are the connections between the internal circuits of the integrated circuit (chip) and the peripheral circuits, and all the pins constitute the interface of this chip.18
- Power DissipationPower loss is the loss of energy during the input/output conversions of the electrical power grid. When energy is converted, it's not always a complete conversion there is always a portion of the energy used in different forms. The loss of power is known as power loss.1.365W
- Qualification StatusElectronics manufacturers must ensure the qualification standards of electronic components to meet the required reliability by a series of test programmes.Not Qualified
- Reach Compliance CodeREACH is the abbreviation of registration, evaluation, authorisation and restriction of chemicals. It acts as a regulation for the safety entry of silicone into the EU market.not_compliant
- Seated Height-MaxMaximum height seated is the largest vertical distance from the vertex of electronic component to the supporting surface.5.08 mm
- SeriesThe complete series of electronic components generally consist of the main body model, prefix, suffix, etc.--
- Temperature GradeTemperature grade refers to the ability of electronic component to withstand certain temperatures. COMMERCIAL
- Terminal FinishWhen selecting component terminal finishes, avoid choosing lead-containing finishes to ensure that the component molding plastic can withstand the higher temperatures associated with lead-free soldering.Tin/Lead (Sn/Pb)
- Terminal FormA terminal is the point where a conductor of an electronic component comes to an end. It can also be connected to the external circuits.THROUGH-HOLE
- Terminal PitchA terminal is the point where a conductor of an electronic component comes to an end. It can also be connected to the external circuits. Terminal pitch refers to the distance between ternimals.2.54mm
- Terminal PositionA terminal is the point where a conductor of an electronic component comes to an end. It can also be connected to the external circuits.DUAL
- Voltage - SupplyPower supply voltage is generated by the part of the power supply itself that can do work on the charge. When doing work on the charge, the charge obtains electric energy, and at the same time, a voltage is formed between the two poles of the power supply.3V~25V

Other
- Base Product NumberLM3915
- Ihs ManufacturerTexas INC
- ManufacturerTexas
- Manufacturer Part NumberLM3915N-1
- Moisture Sensitivity Level1
- Operating Temperature-Max70 °C
- PackageTube
- Package Body MaterialPLASTIC/EPOXY
- Package CodeDIP
- Package DescriptionPLASTIC, DIP-18
- Package Equivalence CodeDIP18,.3
- Package ShapeRECTANGULAR
- Package StyleIN-LINE
- Part Life Cycle CodeObsolete
- Part Package CodeDIP
- Product StatusObsolete
- Reflow Temperature-Max (s)NOT SPECIFIED
- Risk Rank5.1
- Rohs CodeNo
- Samacsys DescriptionTexas - LM3915N-1 - LED BAR GRAPH DRIVER, 3915, DIP18
- Supply Voltage-Max25 V
- Supply Voltage-Min3 V

Dimensions
- HeightHeight refers to the extent of the electronic components from base to top.3.3mm
- LengthLength refers to the extent of the electronic components from end to end.22.86mm
- WidthWidth refers to the extent of the electronic components from side to side.6.35mm

Physical
- MountMount explains the different ways that different electronic components are mounted, including surface mount, through-hole mount, panel mount, and more.Through Hole
- Mounting TypeMounting types explain the different ways that different electronic components are mounted, including surface mount, through-hole mount, panel mount, and more.Through Hole
- Number of PinsPins are the connections between the internal circuits of the integrated circuit (chip) and the peripheral circuits, and all the pins constitute the interface of this chip.18
- Number of TerminalsTerminals are typical that are connected to a central mainframe system. The terminal takes input from the keyboard from the user, and then sends data to host systems. The host system process the input of the user's keyboard as well as commands and output is displayed on the terminal's display.18
- Package / CasePackage/Case refers to the bulk specification of products when they are distributed, stored, or used.18-DIP (0.300, 7.62mm)
- Supplier Device PackageSupplier device package refers to the bulk specification of products when they are distributed, stored, or used.18-DIP
- Surface MountSurface mount means that the electronic components are mounted on the surface of objects. NO

Compliance
- Radiation HardeningRadiation hardening is a kind of capability of electronic components to avoid damage or malfunction which is the result of a high degree of ionizing radiation.No
- REACH SVHCSubstances that meet the requirements of Article 57 of REACH are generally considered to be a substance of very high concern (SVHC).No SVHC
- RoHS StatusRoHS is a mandatory standards used to limit the use of harmful components in electrical and electronic equipment, making them conducive to human health and environmental protection.Non-RoHS Compliant

Datasheet PDF

Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.You can get to learn thoroughly of the LM3915N-1 by reading the datasheets PDF produced by Texas Instruments on Easybom.

LM3915

labelsIntegrated Circuits (ICs)

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Ashley

Ashley is a talented embedded systems engineer in microcontroller programming and PCB design. She is dedicated to staying up-to-date with the latest trends and technologies in the industry and is always looking for ways to incorporate them into her work.

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