LM380N-8+ National Semiconductor, LM380N-8+ Datasheet

LM380N-8+

Manufacturer Part Number

LM380N-8+

Description

Manufacturer

National Semiconductor

Datasheet

1.LM380N8NOPB.pdf (9 pages)

Specifications of LM380N-8+

Notes

NEW

Date_code

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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

= 18V)

www.national.com

August 2000

00697702

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