LM386| Datasheet
Datasheet preview, take a look at Datasheets before downloading (Data Sheet is available on manufacturer site)
LM386 Low Voltage Audio Power Amplifier
August 2000
LM386 Low Voltage Audio Power Amplifier
General Description
The LM386 is a power amplifier designed for use in low voltage consumer applications. 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. The inputs are ground referenced while the output automatically biases to one-half the supply voltage. The quiescent power drain is only 24 milliwatts when operating from a 6 volt supply, making the LM386 ideal for battery operation.
Features
n n n n n n n n Battery operation Minimum external parts Wide supply voltage range: 4V 12V or 5V 18V Low quiescent current drain: 4mA Voltage gains from 20 to 200 Ground referenced input Self-centering output quiescent voltage Low distortion: 0.2% (AV = 20, VS = 6V, RL = 8, PO = 125mW, f = 1kHz) n Available in 8 pin MSOP package
Applications
n n n n n n n n AM-FM radio amplifiers Portable tape player amplifiers Intercoms TV sound systems Line drivers Ultrasonic drivers Small servo drivers Power converters
Equivalent Schematic and Connection Diagrams
Small Outline, Molded Mini Small Outline, and Dual-In-Line Packages
DS006976-2
DS006976-1
Top View Order Number LM386M-1, LM386MM-1, LM386N-1, LM386N-3 or LM386N-4 See NS Package Number M08A, MUA08A or N08E
2000 National Semiconductor Corporation
DS006976
LM386 Datasheet national Download PDF
Add this permalink to your bookmarks for future download of LM386 datasheet
Permalink: http://datasheet.emcelettronica.com/national/LM386
Comments
The Tiny Audio Amplifier kit is a good choice for battery operation. It is based on LM386 IC.
http://www.electronics-lab.com/projects/audio/044/index.html
Someday I goes to visit a friend. He begs me helps to seek electric bell front door circuit. In model to be simple, use the a little equipment. I then choose the Door Buzzer circuit this give. Because of use , IC NE555 produce electric bell sound and use IC LM386 for amplify talk at one time. For R1 use fine decorate the sound as you like it. request have fun this circuit.
http://www.elecfree.com/electronic/circuit-door-buzzer-by-ne555-lm386/
The Pixie is about the simplest rig ever devised, using just 2 transistors and a LM386 audio amp. The circuit starts with a standard Collpits crystal oscillator. In order to provide a 600 Hz frequency shift, a trimmer cap and 2N7000 FET is added in series with the crystal. During transmit, the 2N7000 is turned on, effectively shorting out the trimmer cap and lowering the oscillator frequency.
http://www.coolcircuit.com/gadgets/2008/07/06/the-ap-80-an-alternative-p...
Some of the projects you can test with the Mini Bench Amplifier are tone circuits while others are audio circuits. Tone circuits and audio stages are surprisingly difficult to test unless you have an audio probe or a CRO.
A CRO is an ideal piece of equipment but if your budget does not extend this far, the next best thing is an audio probe.
http://talkingelectronics.com/projects/MiniBenchAmp/MiniBenchAmp.html
I took a paper speaker and hooked it to an LM-386 amplifier IC and put it in the box for my MP3 player. It's pretty loud, even though the MP3 player is weak.