LM386 Datasheet, PDF (2/9 Pages) National Semiconductor (TI) – Low Voltage Audio Power Amplifier

Absolute Maximum Ratings (Note 2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage
(LM386N-1, -3, LM386M-1)
Supply Voltage (LM386N-4)
Package Dissipation (Note 3)
(LM386N)
(LM386M)
(LM386MM-1)
Input Voltage
Storage Temperature
Operating Temperature
Junction Temperature
Soldering Information
15V
22V
1.25W
0.73W
0.595W
±0.4V
−65˚C to +150˚C
0˚C to +70˚C
+150˚C
Dual-In-Line Package
Soldering (10 sec)
+260˚C
Small Outline Package
(SOIC and MSOP)
Vapor Phase (60 sec)
+215˚C
Infrared (15 sec)
+220˚C
See AN-450 “Surface Mounting Methods and Their Effect
on Product Reliability” for other methods of soldering
surface mount devices.
Thermal Resistance
θ_JC (DIP)
θ_JA (DIP)
θ_JC (SO Package)
θ_JA (SO Package)
θ_JA (MSOP)
θ_JC (MSOP)
37˚C/W
107˚C/W
35˚C/W
172˚C/W
210˚C/W
56˚C/W
Electrical Characteristics (Notes 1, 2)
T_A = 25˚C
Parameter
Conditions
Min
Typ
Max Units
Operating Supply Voltage (V_S)
LM386N-1, -3, LM386M-1, LM386MM-1
4
12
V
LM386N-4
5
18
V
Quiescent Current (I_Q)
Output Power (P_OUT)
LM386N-1, LM386M-1, LM386MM-1
LM386N-3
LM386N-4
Voltage Gain (A_V)
V_S = 6V, V_IN = 0
V_S = 6V, R_L = 8Ω, THD = 10%
V_S = 9V, R_L = 8Ω, THD = 10%
V_S = 16V, R_L = 32Ω, THD = 10%
V_S = 6V, f = 1 kHz
10 µF from Pin 1 to 8
4
8
mA
250
325
mW
500
700
mW
700
1000
mW
26
dB
46
dB
Bandwidth (BW)
Total Harmonic Distortion (THD)
V_S = 6V, Pins 1 and 8 Open
V_S = 6V, R_L = 8Ω, P_OUT = 125 mW
f = 1 kHz, Pins 1 and 8 Open
300
kHz
0.2
%
Power Supply Rejection Ratio (PSRR)
V_S = 6V, f = 1 kHz, C_BYPASS = 10 µF
Pins 1 and 8 Open, Referred to Output
50
dB
Input Resistance (R_IN)
Input Bias Current (I_BIAS)
V_S = 6V, Pins 2 and 3 Open
50
kΩ
250
nA
Note 1: All voltages are measured with respect to the ground pin, unless otherwise specified.
Note 2: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is func-
tional, but do not guarantee specific performance limits. Electrical Characteristics state DC and AC electrical specifications under particular test conditions which guar-
antee specific performance limits. This assumes that the device is within the Operating Ratings. Specifications are not guaranteed for parameters where no limit is
given, however, the typical value is a good indication of device performance.
Note 3: For operation in ambient temperatures above 25˚C, the device must be derated based on a 150˚C maximum junction temperature and 1) a thermal resis-
tance of 107˚C/W junction to ambient for the dual-in-line package and 2) a thermal resistance of 170˚C/W for the small outline package.
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