LM386-1
Low Voltage Audio Power Amplifier
General Description
The LM386-1
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.
Low Voltage
Audio Power Amplifier
Features
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Battery operation
Minimum external parts
Wide supply voltage range: 4V–12V
Low quiescent current drain: 4mA
Voltage gains from 20 to 200
Ground referenced input
Self-centering output quiescent voltage
Low distortion: 0.2% (A
V
= 20, V
S
= 6V, R
L
= 8Ω, P
O
=
125mW, f = 1kHz)
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Available in 8 pin SOP package
and DIP package
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
WS386M-1 ideal for battery operation
Applications
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AM-FM radio amplifiers
Portable tape player amplifiers
Intercoms
TV sound systems
Line drivers
Ultrasonic drivers
Small servo drivers
Power converters
Ordering Information
PART NO.
LM386M-1
LM386N-1
PACKAGE
SOP-8
DIP-8
Equivalent Schematic and Connection Diagrams
Small Outline,
Dual in Line Package
Pin Connection
Wing Shing Computer Components Co., (H.K.)Ltd.
Homepage:
http://www.wingshing.com
Tel:(852)2341 9276 Fax:(852)2797 8153
E-mail: wsccltd@hkstar.com
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WINGS [ WING SHING COMPUTER COMPONENTS ]
