LM386N National Semiconductor, LM386N Datasheet
LM386N
Manufacturer Part Number
LM386N
Description
Low Voltage Audio Power Amplifier
Manufacturer
National Semiconductor
Datasheet
1.LM386N.pdf
(9 pages)
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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 up to 200.
The inputs are ground referenced while the output is auto-
matically biased to one half the supply voltage. The quies-
cent 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:
n Low quiescent current drain: 4 mA
n Voltage gains from 20 to 200
n Ground referenced input
n Self-centering output quiescent voltage
n Low distortion
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
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
4V–12V or 5V–18V
DS006976-2
January 2000
www.national.com
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