Low Voltage
LM386-1
Audio Power Amplifier
Low Voltage Audio Power Amplifier
General Description
Features
n Battery operation
is a power amplifier designed for use in low volt-
The LM386-1
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.
n Minimum external parts
n Wide supply voltage range: 4V–12V
n Low quiescent current drain: 4mA
n Voltage gains 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
n Ground referenced input
n Self-centering output quiescent voltage
n Low distortion: 0.2% (AV = 20, VS = 6V, RL = 8Ω, PO
125mW, f = 1kHz)
=
supply, making the
WS386M-1 ideal for battery operation
n Available in 8 pin SOP package and DIP package
Ordering Information
Applications
n AM-FM radio amplifiers
n Portable tape player amplifiers
n Intercoms
n TV sound systems
n Line drivers
PART NO.
LM386M-1
LM386N-1
PACKAGE
SOP-8
DIP-8
n Ultrasonic drivers
n Small servo drivers
n Power converters
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
8-1