It comes in threeflavors, the lm3861, lm3862, and lm3863, which can provide 0. The is a power audio amplifier for consumer applications. Ti1, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. Two positive aspects of operational amplifiers are that they have a very high input impedance and a very low output impedance.
I wanted to design an audio amplification circuit for a future project so i just wanted to design this one for now so i get an understanding of how it works. The main component of this circuit is the lm380 audio amplifier. Lm380n8 audio amplifier circuit ic is an another 8 pin dip version of lm380n audio amplifier ic which is available in 14 pin dip package. Power audio amplifier ic lm380 free download as pdf file. May 28, 2016 audio amplifier using 2 lm380 bridged ece labs ucy. The circuit uses a 14pin package lm380 as amplifier element, the input signal by the volume control potentiometer. Lm380 1features description wide supply voltage range.
Nsc, alldatasheet, datasheet, datasheet search site for electronic components and. Feb, 2016 hello all, a few years back, i made a stereo amplifier, using a couple of lm380 ics. In order to hold system cost to a minimum, a gain is internally fixed at 34 db. The lm386 is a power amplifier designed for use in low voltage consumer applications. This kit uses the 14pin pdip to allow a greater max. Power audio amplifier ic lm380 amplifier operational amplifier. Both the ics are able to deliver output power around 2w to 2. Power amplifier xs350 xs250 owners manual e power power amplifier xs series power signal clip signalprotection clip ch a ch b on off 350. Lm380 power audio amplifier an69 national semiconductor application note 69 december 1972 lm380 power audio amplifier introduction the lm380 is a power audio amplifier intended for consumer applications. The output automatically selfcentersto onehalfthe supply voltage. National semiconductor lm380 user manual pdf download.
I tend to prefer the sound that can be produced from an. The c6 can choose get many the value since 47uf to at 470uf which, have a voice good bass. Definitionsin smallsignal amplifiers the main factors are. Lm380n datasheetpdf download texas instruments, lm380n. Lm380 power audio amplifier circuit diagram circuit. Lm380 audio power amplifier general description the lm380 is a power audio amplifier for consumer application. Audio power amplifier, lm380 datasheet, lm380 circuit, lm380 data sheet. A part of the first stage of the amplifier is highlighted by a blue box and is a longtailed pair where each. The output is automatically self centering to one half the supply voltage. It is suitable for batterypowered devices such as radios, guitar amplifiers, and hobby electronics projects. Lm380 audio power amplifier linear ic jaycar electronics. This series of audio amps was developed from yamahas wealth of experience in building pa. The circuit shown in figure 1 is a very simple audio power amplifier. The lm380 is a power audio amplifier intended for consumer applications it features an internally fixed gain of 50 34 db and an output which automatically centers itself at.
Lm386 low voltage audio power amplifier echelle inconnue. Lm380n 8nopb amplifier ic 1channel mono class ab 8pdip from texas instruments. Sep 14, 2019 this be mini size power amplifier 2 watt otl that use ic lm380. The simplicity of this circuit is made possible by the lm380 s minimal requirements for. A unique input stage allows inputs to be ground referenced or ac coupled as required. The circuit is using lm380n version which is a 14 pin dip package ic with good features like it. The lm380 is a power audio amplifier for consumer application. The lm380 is an older but nonetheless still usable audio amplifier. The kit uses lm380 audio power amplifiers and contains two identical amplifiers capable of delivering a gain internally fixed at 34 db with a maximum peak current capability of 1. Lm380 audio amplifier electronic project circuit design. The lm is a power audio amplifier for consumer applica tion in order to hold system cost to a minimum gain is internally fixed at 34 db a unique input stage. Oct 25, 2014 video demonstrates the assembly of an lm380 audio amplifier circuit. Coates 2007 2017 therefore any heatsink with a thermal resistance lower or equal to the calculated value should be ok, but to avoid continually running the transistor at, or close to the.
In order to hold system cost to a lowquiescentpowerdrain. Ti1, alldatasheet, datasheet, datasheet search site for electronic components and. Video demonstrates the assembly of an lm380 audio amplifier circuit. This lm380 audio amplifier electronic project is designed for consumer applications. Lm380 audio power amplifier electronic projects circuits. Lica 7 power amplifiers using power boosters, monolithic power. The gain is internally set to 20 to keep external part count low, but the addition of an external resistor and capacitor between pins 1 and 8 will increase the gain to any value from 20 to 200. Lm380 pdf, lm380 description, lm380 datasheets, lm380 view. Output is short circuit proof with internal thermal limiting. Lm380 audio power amplifier general description the lm380 is a power audio. Nsc, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. There are many other audio amp ics on the market lm380 and lm383 are similar but higher power amps from national, but the lm386 is sufficient for our purposes.
Be base readymade circuit for side sound work and the communication. Efficiency maximum power capability impedance matching to the output device 2. Circuit assembly tutorials lm380 audio amplifier youtube. Pricing and availability on millions of electronic components from digikey. Pdf lm380 0v22v 14pin lm380 lm380n8 lm380n lm380n8 lm380n 14pin lm audio amplifier 2,5w lm380n 4watt audio amplifier an69 for lm384 lm38 ultrasonic drivers mono audio amplifier 8 pin dip n14a8 lm380n.
If we need more power than 2 watts we can connect two circuits in bridge mode like in figure below. I fabricated two separate mono amplifiers on their own pcbs and then mounted them in a case. Amplification linearity gainsince largesignal, or power, amplifiers handle relatively largevoltage signals and current levels, the main factors are. The output automatically selfcenters to onehalf the supply voltage. This is a very basic circuit that you can find all over using an lm386 integrated circuit. Image mini amplifier lm380 above is one of the images in the article audio amplifier with lm380, hopefully with a bigger image display can be seen more clearly. It features an internally fixed gain of 50 34 db and an output which automatically centers itself at onehalf of the supply voltage. Lm380 datasheet, lm380 pdf, lm380 data sheet, datasheet, data sheet, pdf. Lm3801featuresdescriptionthe lm380 is a power audio amplifier for consumer datasheet search, datasheets, datasheet search site for electronic components and semiconductors, integrated circuits, diodes and other semiconductors. Lm380 datasheet, lm380 pdf, lm380 pinout, equivalent, replacement audio power amplifier national semiconductor, schematic, circuit, manual. The circuit is using lm380n version which is a 14 pin dip package ic with good features like it can be operated on a wide range. The ic consists of an 8 pin dual inline package and can output 0.
Nsc audio power amplifier,alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. Mar 21, 2015 find more details about the power audio amplifier from the national semiconductor by downloading the pdf document from the following source. The circuit that i used was taken from an old textbook at my high school. Lmn datasheet, lmn national semiconductor 5watt audio amplifier datasheet, buy lmn. The output is short circuit proof with internal thermal. The lm380 2 watt audio amplifier circuit shown here is an easy to build circuit using only few external parts and able deliver 2w to 2. The output is short circuit proof with internal thermal limiting.
The prefix lm stands for linear monolithic, referring to the analog components. Lm380n8nopb texas instruments integrated circuits ics. View and download national semiconductor lm380 user manual online. Depending on the changes it makes to the input signal, amplifiers are broadly classified into current. A unique input stage allows ground referenced input signals. For this audio power amplifier circuit we need to use a 18 volts dc power supply. In order to hold system cost to a low quiescent power drain. Circuit diagram for a simple lm380 based audio power amplifier. This be mini size power amplifier 2 watt otl that use ic lm380.
An amplifier is an electronic device used to increase the magnitude of voltagecurrent power of an input signal. The gain is internally set to 20 to keep external part count low, but the addition of an external resistor and capacitor between pins 1 and 8 will. Lm380 power audio amplifier circuit diagram download. Lm380 datasheet, lm380 datasheets, lm380 pdf, lm380 circuit. A specific input signal allows ground reference signal and the out signal maintains its level to the half of the applied input voltage. A unique input stage allows inputs to be ground referenced. Lm380 audio power amplifier december 1994 lm380 audio power amplifier general description the lm380 is a power audio amplifier for consumer application. Nsc audio power amplifier,alldatasheet, datasheet, datasheet search site for electronic components. The following is a list of lmseries integrated circuits. Lm380 power audio amplifier circuit diagram circuit wiring. Lm380 audio power amplifier generaldescription the lm380 is a power audio amplifier for consumer application in order to hold system cost to a minimum gain is internally fixed at 34 db a unique input stage allows inputs to be ground referenced the output is automatically self centering to one half the supply voltage. Many were among the first analog integrated circuits commercially produced. To see other pictures of the article audio amplifier with lm380, you can select them via the navigation menu below.
The lm380 is a power audio amplifier for consumer applications. The lm380 is a power audio amplifier for consumer applica. Lm380 audio power amplifier december 1994 lm380 audio power amplifier general description the lm380 is a power audio amplifier for consumer applica a selected part for more power on higher supply voltages is tion in order to hold system cost to a minimum gain is available as the lm384 for more information see an69 internally fixed at 34 db a unique input stage. In order to hold system cost to a minimum, gain is internally fixed at 34 db. National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and national reserves the right at any time. The lm386 is an integrated circuit containing a low voltage audio power amplifier. It takes in a weak electrical signalwaveform and reproduces a similar stronger waveform at the output by using an external power source. Output is automatically self centring to one half of the supply voltage.
This is an old chip that has been a popular choice for low power audio applications for many years. Hello all, a few years back, i made a stereo amplifier, using a couple of lm380 ics. The lm380 is a power audio amplifier intended for consumer applications. Lm380 is an audio amplifier used specially for power audio amplification purposes. Orders placed on our website will ship the same business day if ordered by 3pm mst. Lm 380 power amplifier audio frequency the lm380 is a power. Lm386 low voltage audio power amplifier december 1994 lm386 low voltage audio power amplifier general description the lm386 is a power amplifier designed for use in low voltage consumer applications. The lm series originated with integrated circuits made by national semiconductor. Input stage allows the input to be ground referenced or ac coupled. The supply voltages provide the power necessary for the high gain and amplification and are viewed here as the dependent voltage source.