LM386MX-1+ National Semiconductor, LM386MX-1+ Datasheet

LM386MX-1+

Manufacturer Part Number

LM386MX-1+

Description

Manufacturer

National Semiconductor

Datasheet

1.LM386M1NOPB.pdf (9 pages)

Specifications of LM386MX-1+

Notes

NEW

Date_code

10+

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LM386

Low Voltage Audio Power Amplifier

General Description

The LM386 is a power amplifier designed for use in low volt-

age 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 automati-

cally 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.

Equivalent Schematic and Connection Diagrams

DS006976

DS006976-1

Features

n Battery operation

n Minimum external parts

n Wide supply voltage range: 4V–12V or 5V–18V

n Low quiescent current drain: 4mA

n Voltage gains from 20 to 200

n Ground referenced input

n Self-centering output quiescent voltage

n Low distortion: 0.2% (A

n Available in 8 pin MSOP package

Applications

n AM-FM radio amplifiers

n Portable tape player amplifiers

n Intercoms

n TV sound systems

n Line drivers

n Ultrasonic drivers

n Small servo drivers

n Power converters

125mW, f = 1kHz)

Molded Mini Small Outline,

and Dual-In-Line Packages

Order Number LM386M-1,

See NS Package Number

M08A, MUA08A or N08E

LM386MM-1, LM386N-1,

LM386N-3 or LM386N-4

Small Outline,

Top View

= 20, V

= 6V, R

DS006976-2

www.national.com

August 2000

= 8 , P

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