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DATA SHEET
LND386
LOW VOLTAGE AUDIO POWER AMPLIFIER
GENERAL DESCRIPTION
The LND386 is a power amplifier designed for
use in low voltage 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 automatically biased to one half the
supply voltage. The quiescent power drain is
only 24 milliwatts when operating from a 6 volt
supply, making the LND386 ideal for battery
operation.
FEATURES
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Battery operation
Minimum external parts
Wide supply voltage range 4V to 12V
Low quiescent current drain 4mA
(Typ)
Voltage gains: 20-200
Ground reference output
Self-centering output quiescent
voltage
Low distortion
PIN CONFIGURATION
APPLICATIONS
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AM-FM radio amplifiers
Portable tape player amplifiers
Intercoms
TV sound system
Line Drivers
Ultrasonic drivers
Small servo drivers
Power converters
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Linear Dimensions, Inc.
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445 East Ohio Street, Chicago IL 60611 USA
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tel 312.321.1810
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fax 312.321.1830
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www.lineardimensions.com
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LND386
Absolute Maximum Rating
PARAMETER
Supply voltage
Power dissipation
Input voltage
Junction temperature
Operating temperature
Storage temperature
SYMBOL
V
cc
P
D
V
in
Tj
T
OPR
T
STG
MAXIMUM
15
660
±0.4
+150
-20...+70
-40...+125
UNITS
V
mW
V
ºC
ºC
ºC
Electrical Characteristics
(T
A
=25ºC, V
CC
=6V,R
L
= 8Ω, f = 1KHz, unless otherwise specified)
Ω
PARAMETER
Quiescent Current
Output Power
Voltage Gain
Bandwidth
Total Harmonic
Distortion
Power Supply
Rejection Ratio
Input Resistance
Input Bias Current
SYMBOL
I
CCQ
P
OUT
Av
BW
THD
PSRR
R
IN
I
BIAS
CONDITIONS
V
IN =
0
V
CC
=6V, THD=10%
V
CC
=9V, THD=10%
Pins 1and 8 Open
10µF from Pin 1 to 8
Pins 1 and 8 Open
10µF from Pin 1 to 8
P
out
=125mW, Pins 1
and 8 Open
C
bypass
=10µF, Pins 1
and 8 Open,
Referred to output
Pins 2 and 3 Open
MIN
250
500
TYP
4
325
700
26
46
300
60
0.2
50
50
250
MAX
8
UNITS
mA
mW
dB
KHz
%
dB
kΩ
nA
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Linear Dimensions, Inc.
•
445 East Ohio Street, Chicago IL 60611 USA
•
tel 312.321.1810
•
fax 312.321.1830
•
www.lineardimensions.com
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LND386
Typical Applications
Amplifier with Gain = 20
(Minimum parts)
Amplifier with Gain = 200
Amplifier with Bass Boost
Square Wave Oscillator
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Linear Dimensions, Inc.
•
445 East Ohio Street, Chicago IL 60611 USA
•
tel 312.321.1810
•
fax 312.321.1830
•
www.lineardimensions.com
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Analogue and Mixed Signal
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