LND386
LOW VOLTAGE AUDIO POWER AMPLIFIER
DATA SHEET
GENERAL DESCRIPTION
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
FEATURES
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.
APPLICATIONS
AM-FM radio amplifiers
Portable tape player amplifiers
Intercoms
TV sound system
Line
Drivers
Ultrasonic
drivers
Small
servo
drivers
Power
converters
PIN CONFIGURATION
Linear Dimensions, Inc. 445 East Ohio Street, Chicago IL 60611 USA tel 312.321.1810 fax 312.321.1830
www.lineardimensions.com
PARAMETER
SYMBOL
MAXIMUM
UNITS
Supply voltage
V
cc
15
V
Power dissipation
P
D
660
mW
Input voltage
V
in
0.4
V
Junction temperature
Tj
+150
C
Operating temperature
T
OPR
-20...+70
C
Storage temperature
T
STG
-40...+125
C
(T
A
=25C, V
CC
=6V,R
L
= 8
, f = 1KHz, unless otherwise specified)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Quiescent Current
I
CCQ
V
IN =
0
4
8
mA
V
CC
=6V, THD=10%
250
325
Output Power
P
OUT
V
CC
=9V, THD=10%
500
700
mW
Pins 1and 8 Open
26
Voltage Gain
Av
10F from Pin 1 to 8
46
dB
Pins 1 and 8 Open
300
Bandwidth
BW
10F from Pin 1 to 8
60
KHz
Total Harmonic
Distortion
THD
P
out
=125mW, Pins 1
and 8 Open
0.2
%
Power Supply
Rejection Ratio
PSRR
C
bypass
=10F, Pins 1
and 8 Open,
Referred to output
50
dB
Input Resistance
R
IN
50
k
Input Bias Current
I
BIAS
Pins 2 and 3 Open
250
nA
Absolute Maximum
Rating
LND386
Electrical Characteristics
Linear Dimensions, Inc. 445 East Ohio Street, Chicago IL 60611 USA tel 312.321.1810 fax 312.321.1830
www.lineardimensions.com
LND386
Typical Applications
Amplifier with Gain = 20 (Minimum parts)
Amplifier with Gain = 200
Amplifier with Bass Boost
Square Wave Oscillator
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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