LM380N National Semiconductor, LM380N Datasheet

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LM380N

Manufacturer Part Number
LM380N
Description
Audio Amp Speaker 1-CH Mono 2.5W Class-AB 14-Pin MDIP Rail
Manufacturer
National Semiconductor
Datasheet

Specifications of LM380N

Package
14MDIP
Function
Speaker
Amplifier Type
Class-AB
Input Signal Type
Differential
Typical Voltage Gain
33.98 dB
Total Harmonic Distortion Noise
0.2@8Ohm %
Typical Psrr
38 dB
Maximum Input Bias Current
0.1(Typ)@18V uA
Maximum Load Resistance
8 Ohm
Output Type
1-Channel Mono
Amplifier Class
AB
No. Of Channels
1
Output Power
2.5W
Supply Voltage Range
10V To 22V
Load Impedance
8ohm
Operating Temperature Range
0°C To +70°C
Amplifier Case Style
DIP
Rohs Compliant
No

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© 2004 National Semiconductor Corporation
LM380
2.5W Audio Power Amplifier
General Description
The LM380 is a power audio amplifier for consumer applica-
tions. In order to hold system cost to a minimum, gain is
internally fixed at 34 dB. A unique input stage allows ground
referenced input signals. The output automatically self-
centers to one-half the supply voltage.
The output is short circuit proof with internal thermal limiting.
The package outline is standard dual-in-line. The LM380N
uses a copper lead frame. The center three pins on either
side comprise a heat sink. This makes the device easy to
use in standard PC layouts.
Uses include simple phonograph amplifiers, intercoms, line
drivers, teaching machine outputs, alarms, ultrasonic driv-
ers, TV sound systems, AM-FM radio, small servo drivers,
power converters, etc.
Connection Diagrams
See NS Package Number N14A
Order Number LM380N
(Dual-In-Line Packages, Top View)
DS006977
00697701
A selected part for more power on higher supply voltages is
available as the LM384. For more information see AN-69.
Features
n Wide supply voltage range: 10V-22V
n Low quiescent power drain: 0.13W (V
n Voltage gain fixed at 50
n High peak current capability: 1.3A
n Input referenced to GND
n High input impedance: 150kΩ
n Low distortion
n Quiescent output voltage is at one-half of the supply
n Standard dual-in-line package
voltage
See NS Package Number N08E
Order Number LM380N-8
S
= 18V)
www.national.com
August 2000
00697702

Related parts for LM380N

LM380N Summary of contents

Page 1

... The output automatically self- centers to one-half the supply voltage. The output is short circuit proof with internal thermal limiting. The package outline is standard dual-in-line. The LM380N uses a copper lead frame. The center three pins on either side comprise a heat sink. This makes the device easy to use in standard PC layouts ...

Page 2

... Block and Schematic Diagrams LM380N www.national.com 00697703 2 LM380N-8 00697704 00697705 ...

Page 3

... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage Peak Current Package Dissipation 14-Pin DIP (Note 7) Package Dissipation 8-Pin DIP (Note 7) Input Voltage Storage Temperature Electrical Characteristics Symbol ...

Page 4

Heat Sink Dimensions Staver Heat Sink #V-7 Staver Company 41 Saxon Ave. P.O. Drawer H Bayshore, NY 11706 Tel: (516) 666-8000 Copper Wings 2 Required Soldered to Pins 10, 11, 12 Thickness 0.04 Inches Typical Performance Characteristics ...

Page 5

Typical Performance Characteristics Device Dissipation vs Output Power — 8Ω Load Power Supply Current vs Supply Voltage Output Voltage Gain and Phase vs Frequency (Continued) Device Dissipation vs Output 00697714 Total Harmonic Distortion 00697716 Total Harmonic Distortion 00697718 5 Power ...

Page 6

Typical Performance Characteristics Device Dissipation vs Output Power Typical Applications www.national.com (Continued) 00697720 Phono Amplifier Bridge Amplifier 6 Supply Decoupling vs Frequency 00697721 00697708 00697709 ...

Page 7

Typical Applications (Continued) Intercom Phase Shift Oscillator 00697711 7 00697710 www.national.com ...

Page 8

... Physical Dimensions www.national.com inches (millimeters) unless otherwise noted Molded Dual-In-Line Package (N) Order Number LM380N-8 NS Package Number N08E Molded Dual-In-Line Package (N) Order Number LM380N NS Package Number N14A 8 ...

Page 9

... BANNED SUBSTANCE COMPLIANCE National Semiconductor certifies that the products and packing materials meet the provisions of the Customer Products Stewardship Specification (CSP-9-111C2) and the Banned Substances and Materials of Interest Specification (CSP-9-111S2) and contain no ‘‘Banned Substances’’ as defined in CSP-9-111S2. ...

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