LM386MX-1 National Semiconductor, LM386MX-1 Datasheet

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LM386MX-1

Manufacturer Part Number
LM386MX-1
Description
IC,Audio Amplifier,SINGLE,BIPOLAR,SOP,8PIN,PLASTIC
Manufacturer
National Semiconductor
Datasheet

Specifications of LM386MX-1

Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

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© 2000 National Semiconductor Corporation
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
V
= 20, V
S
= 6V, R
DS006976-2
L
www.national.com
August 2000
= 8 , P
O
=

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LM386MX-1 Summary of contents

Page 1

... 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 © 2000 National Semiconductor Corporation Features n Battery operation n Minimum external parts n Wide supply voltage range: 4V– ...

Page 2

... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage (LM386N-1, -3, LM386M-1) Supply Voltage (LM386N-4) Package Dissipation (Note 3) (LM386N) (LM386M) (LM386MM-1) Input Voltage Storage Temperature Operating Temperature Junction Temperature ...

Page 3

Application Hints GAIN CONTROL To make the LM386 a more versatile amplifier, two pins (1 and 8) are provided for gain control. With pins 1 and 8 open the 1.35 k resistor sets the gain at 20 (26 dB). If ...

Page 4

Typical Performance Characteristics Quiescent Supply Current vs Supply Voltage DS006976-5 Voltage Gain vs Frequency DS006976-14 Device Dissipation vs Output Power — 4 Load DS006976-17 www.national.com Power Supply Rejection Ratio (Referred to the Output) vs Frequency DS006976-12 Distortion vs Frequency DS006976-15 ...

Page 5

Typical Applications Amplifier with Gain = 20 Minimum Parts Amplifier with Gain = 50 Amplifier with Bass Boost Amplifier with Gain = 200 DS006976-3 Low Distortion Power Wienbridge Oscillator DS006976-6 Square Wave Oscillator DS006976-8 5 DS006976-4 DS006976-7 DS006976-9 www.national.com ...

Page 6

Typical Applications (Continued) Note 4: Twist Supply lead and supply ground very tightly. Note 5: Twist speaker lead and ground very tightly. Note 6: Ferrite bead in Ferroxcube K5-001-001/3B with 3 turns of wire. Note 7: R1C1 band limits input ...

Page 7

Physical Dimensions inches (millimeters) unless otherwise noted SO Package (M) Order Number LM386M-1 NS Package Number M08A 7 www.national.com ...

Page 8

Physical Dimensions 8-Lead (0.118” Wide) Molded Mini Small Outline Package www.national.com inches (millimeters) unless otherwise noted (Continued) Order Number LM386MM-1 NS Package Number MUA08A 8 ...

Page 9

... NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant ...

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