Data Sheet
LOW VOLTAGE AUDIO POWER AMPLIFIER
General Description
The AZ386 is a power amplifier designed for use in
low voltage consumer applications. The gain is inter-
nally set to 20 to keep external part count low, but the
addition of an external resistor and capacitor between
pin 1 and pin 8 will increase the gain to any value from
20 to 200.
The inputs are ground referenced while the output
automatically biases to one-half the supply voltage.
The quiescent power drain is only 24mW when opera-
ting from a 5V supply, making the AZ386 ideal for
battery operation.
This IC is available in SOIC-8 and DIP-8 packages.
AZ386
Features
·
·
·
·
·
·
·
Wide Supply Voltage Range: 4V to 16V
Low Quiescent Current Drain: 6mA
Voltage Gains from 20 to 200
Battery Operation
Minimum External Parts
Low Power Dissipation
Low Distortion
Applications
·
·
·
·
·
·
·
·
·
AM-FM Radio Amplifier
Cordless Phone
TV Sound Systems
Portable Tape Player Amplifier
Intercoms
Line Drivers
Ultrasonic Drivers
Small Servo Drivers
Power Converters
SOIC-8
DIP-8
Figure 1. Package Types of AZ386
Oct. 2006 Rev. 1. 3
BCD Semiconductor Manufacturing Limited
1
Data Sheet
LOW VOLTAGE AUDIO POWER AMPLIFIER
Pin Configuration
M Package/P Package
(SOIC-8/DIP-8)
GAIN
INPUT -
INPUT +
GND
1
2
3
4
8
7
6
5
GAIN
BYPASS
V
CC
V
OUT
AZ386
Top View
Figure 2. Pin Configuration of AZ386
Functional Block Diagram
GAIN
8
GAIN
1
6
7
BYPASS
15KΩ
5
150Ω
1.35KΩ
15KΩ
V
OUT
15KΩ
V
CC
2
INPUT -
50KΩ
50KΩ
4
3
INPUT +
GND
Figure 3. Functional Block Diagram of AZ386
Oct. 2006 Rev. 1. 3
BCD Semiconductor Manufacturing Limited
2
Data Sheet
LOW VOLTAGE AUDIO POWER AMPLIFIER
Ordering Information
AZ386
AZ386
Circuit Type
-
E1: Lead Free
Blank: Tin Lead
TR: Tape and Reel
Blank: Tube
Package
M: SOIC-8
P: DIP-8
Package
Temperature
Range
0 to 70
o
C
0 to 70
o
C
Part Number
Tin Lead
AZ386M
AZ386MTR
AZ386P
Lead Free
AZ386M-E1
AZ386MTR-E1
AZ386P-E1
Marking ID
Tin Lead
386M
386M
AZ386P
Lead Free
386M-E1
386M-E1
AZ386P-E1
Packing Type
Tube
Tape & Reel
Tube
SOIC-8
DIP-8
BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant.
Oct. 2006 Rev. 1. 3
BCD Semiconductor Manufacturing Limited
3
Data Sheet
LOW VOLTAGE AUDIO POWER AMPLIFIER
Absolute Maximum Ratings (Note 1)
Parameter
Power Supply Voltage
Package Dissipation (Note 2)
Input Voltage
Junction Temperature
Storage Temperature Range
Symbol
V
CC
P
D
V
IN
T
J
T
STG
AZ386P
AZ386M
-0.4 to 0.4
150
-55 to 150
DIP-8 Soldering
(10 sec.)
SOIC-8 (15 sec.)
Thermal Resistance
θ
JA
DIP-8
SOIC-8
260
215
107
172
o
C/W
AZ386
Value
18
1.25
0.73
Unit
V
W
W
V
o
o
C
C
C
Soldering Information
o
Note 1: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the
device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond
those indicated under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Maximum
Ratings" for extended periods may affect device reliability.
Note 2: For operation in ambient temperatures (T
A
) above 25
o
C, the device must be derated based on a 150
o
C
maximum junction temperature and 1) a thermal resistance of 107
o
C/W junction to ambient for the Dual-in-Line
package and 2) a thermal resistance of 172
o
C/W for the small outline package.
Recommended Operating Conditions
Parameter
Operating Temperature Range
Min
0
Max
70
Unit
o
C
Oct. 2006 Rev. 1. 3
BCD Semiconductor Manufacturing Limited
4
Data Sheet
LOW VOLTAGE AUDIO POWER AMPLIFIER
Electrical Characteristics (Note 3)
Operating Conditions: T
A
=25
o
C unless otherwise specified.
Parameter
Supply Voltage
Quiescent Current
Symbol
V
CC
I
Q
V
CC
=6V, V
IN
=0
V
CC
=6V, R
L
=8Ω, THD=10%
Output Power
P
OUT
V
CC
=9V, R
L
=8Ω, THD=10%
V
CC
=16V, R
L
=32Ω, THD=10%
Voltage Gain
Bandwidth
Total Harmonic Distortion
Power Supply Rejection Ratio
Input Resistance
Input Bias Current
G
V
BW
THD
PSRR
R
IN
I
BIAS
V
CC
=6V, Pins 2 and 3 open
V
CC
=6V, f=1KHz
10µF from Pin 1 to 8
V
CC
=6V, Pins 1 and 8 open
V
CC
=6V, R
L
=8Ω, P
OUT=
125mW
f=1KHz, Pins 1 and 8 open
V
CC
=6V, f=1KHz, C
BYPASS
=10µF,
Pins 1 and 8 open, Referred to Output
Test Conditions
Min
Typ
Max
Unit
AZ386
4
6
250
500
700
300
800
1000
26
45
500
0.27
45
70
10
16
8
V
mA
mW
mW
mW
dB
dB
KHz
%
dB
KΩ
nA
Note 3: All voltages are measured with respect to the ground pin, unless otherwise specified.
Oct. 2006 Rev. 1. 3
BCD Semiconductor Manufacturing Limited
5
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